Prosiding Seminar Nasional Inovasi Teknologi Terapan

Cover, Dewan Redaksi, Reviewer, Keynote Speaker

Cover Prosiding — 2025-08-22

Cover, Dewan Redaksi dan Reviewer, Keynote Speaker, Kata Pengantar, Daftar Isi, dan Susunan Acara

MESIN PENCACAH RUMPUT UNTUK PAKAN TERNAK

Revanza Septian S.M — 2025-08-22

This study aims to design a conceptual model of a grass chopper machine to assist in the preparation of livestock feed. The design process was carried out systematically through several stages, including need identification, functional analysis using the Black Box method, development of alternatives via a morphological chart, and evaluation of concepts using a weighted Likert scale. The analysis produced three conceptual design variants (AVK1, AVK2, and AVK3), which were evaluated based on six criteria: functional achievement, manufacturing time, safety, durability, ease of assembly, and maintenance. Based on the evaluation results, AVK3 was selected as the best concept with the highest total score of 4.45. The outcome of this conceptual design is expected to serve as a reference for the future development of an efficient and ergonomic grass chopper machine suitable for small to medium-scale farmers.

ANALISA KEBUTUHAN DAYA MOTOR BAKAR PADA MESIN PEMISAH TANGKAI PADI

Amar Ma’ruf Haafizh Arrahman — 2025-08-22

The rapid advancement of technology demands innovations that can improve efficiency in terms of time, labor, and cost. Manual rice separation remains a challenge for farmers as it requires significant time and effort. A rice separator machine is an agricultural tool designed to mechanically separate rice from its stalks, replacing traditional methods such as beating (gebotan) or trampling. In Riau Silip District, Bangka Belitung, the total rice field area reached 190 hectares in 2024, with a rice production of approximately 75,644 tons. With such a harvest volume, the machines currently available in the village are unable to separate the rice from the stalks optimally due to insufficient engine power, which often causes jamming and reduced torque. Therefore, we propose replacing the engine with a 11 HP motor to increase torque and separation speed. As a result, the rice stalk separator machine will have a capacity of 20 kg/hour in accordance with the desired specifications, enabling farmers to overcome obstacles and maintain the stability of their harvest yields.

ALAT PENDETEKSI WARNA UNTUK PENDERITA BUTA WARNA MENGGUNAKAN SENSOR TCS34725

Tiara Nurlisda Puteri Mas Agung — 2025-08-22

Color blindness is a condition that affects a person's ability to distinguish colors, which often interferes with daily activities. This research aims to create a color detection device that can help people with color blindness to accurately recognize the colors of objects around them. This tool uses the TCS34725 sensor, which is known for its ability to detect RGB colors, and the Arduino Mega Pro Mini as the data processing platform. In its implementation, it outputs a color signal or information through a speaker, allowing color-blind users to understand the detected colors. Tests were conducted under various lighting conditions to determine the accuracy of the tool. The results show that this tool is effective in helping people with color blindness identify basic colors, although there are limitations that need to be considered. The color detector designed using TCS34725 color sensor and Arduino Mega Pro Mini microcontroller has recognized various colors with sound output and is able to detect various colors such as red, green, blue, yellow, purple, and so on, with sufficient success in stable lighting conditions.

SISTEM BEL DAN JADWAL PELAJARAN DI SEKOLAH BERBASIS IOT

Ariza Prasetya — 2025-08-22

The integration of Internet of Things (IoT)-based systems in educational environments represents a strategic approach to improving time management efficiency. This study presents the design and implementation of an IoT-based automatic school bell and class scheduling system, controllable remotely via a mobile application. The system utilizes a NodeMCU ESP32 microcontroller as the main control unit, a DFPlayer Mini for automated audio playback, an LED Dot Matrix display for schedule visualization, and a speaker for audio output. The user interface is developed using the Blynk platform, and all programming is conducted through the Arduino IDE. Experimental results demonstrate that the system operates reliably, rings the bell in accordance with predefined schedules, and displays real-time schedule information. Furthermore, the integration of mobile control enhances user flexibility and operational convenience. This system contributes to the automation and optimization of scheduling tasks within educational institutions.

RANCANG RANGUN MESIN MILLING CNC SEDERHANA

Abbi Azan — 2025-08-22

The development of the manufacturing industry in the 4.0 era drives the need for functional CNC machines. This final project aims to design and build a simple yet precise CNC milling machine that can be used for cutting processes. The main components include a frame made of aluminum profiles, spindles, stepper motors, TB6560 drivers, and microcontrollers. Assembly is carried out in stages, starting from the mechanical system to the machine control system. The machine is tested through function tests and precision tests, including measuring parallelism, perpendicularity, and precision of the X, Y, and Z axes. Precision testing is carried out using a dial indicator with an accuracy of 0.01 mm. The test results show that the machine is capable of producing X, Y, and Z axis movements. Functional testing shows that all main components such as stepper motors, spindles, and control systems can operate according to their functions and preventive maintenance is carried out on main components such as linear guide rails, couplings, and lead screws to maintain the long-term performance of the machine.

ALAT PENDETEKSI WARNA BUAH UNTUK PENYANDANG BUTA WARNA

Dea Anada — 2025-08-22

This research uses quantitative data analysis by applying the hardware design method. The hardware system consists of a TCS3200 sensor circuit based on an Arduino Uno microcontroller. Color sensor to detect object color and 16x2 LCD to display output in the form of information on the type of color detected. This research aims to detect colors to help people with color blindness, this tool is able to detect 3 colors in RGB space. Based on the overall test results that the color sensor reading will always depend on the ambient light intensity and the distance between the sensor and the object. However, this tool has been successfully designed and can work properly and correctly as desired. In this study, testing on patients with color blindness cannot be said to be effective because there are still people with color blindness who fail to use the tool.

ANALISA KEBUTUHAN DAYA MOTOR PADA MESIN FILAMEN 3D PRINTER

Junizar Junizar — 2025-08-22

The issue of plastic bottle waste in Indonesia, particularly in the Bangka Belitung region, has become a serious environmental concern due to the low recycling rate. This study aims to design and develop an extrusion device to convert PET plastic bottle waste into 3D printer filament with a diameter of 2.85 mm. The design method follows the VDI 2222 standard, encompassing data collection, conceptualization, component design, prototype development, and testing stages. The system utilizes a stepper motor to drive the screw, a heater band for the heating process, and a simple cooling mechanism. Test results indicate that the device can produce filament with a dimensional tolerance of ±0.05 mm and a production capacity of up to 1 kg per hour. This innovation is expected to serve as an appropriate solution for managing plastic waste and to support the creative industry based on 3D printing technology.

SISTEM MONITORING DAN KONTROL TANAMAN DENGAN SENSOR KELEMBAPAN DAN SENSOR NPK BERBASIS IoT (INTERNET OF THINGS)

Rakhen Aryo Setio — 2025-08-22

Modern agriculture demands efficiency and accuracy in resource management, particularly in monitoring soil moisture and the content of essential macronutrients such as nitrogen, phosphorus, and potassium. This study aims to design and implement a plant monitoring and control system based on the Internet of Things that integrates soil moisture and NPK sensors. The system is designed to collect real-time soil condition data and transmit it to an XAMPP server, allowing smartphone access via a web application. The research method includes hardware and software design, sensor testing, data analysis of the monitoring results and the automatic control of irrigation and fertilization. Data analysis is carried out by comparing sensor measurement results with the standard requirements of the plants. The test results show that the system can effectively monitor and control plant conditions, provide accurate information, and facilitate remote agricultural management. In conclusion, this system can improve the efficiency of water and fertilizer use and crop productivity, thus supporting precision and sustainable agriculture.

RANCANG BANGUN ALAT PENGERING IKAN ASIN BERBASIS TENAGA SURYA DENGAN MENGGUNAKAN METODE INTERNET OF THINGS

Muhammad Awal Ramadhan — 2025-08-22

Fish drying is a traditional method of preserving fish in coastal areas that have limited access to modern cooling and preservation technology. Along with the development, this technology is equipped with an Internet of Things (IoT) based controller. This process aims to reduce the water content in fish, so that it can extend the shelf life and increase its selling value by utilizing solar energy generated by solar panels. This automatic fish drying system is able to dry fish without being affected by the weather. The heating element and fan function as the main heat source at night, while sunlight is the source of electricity stored in the battery. This system can regulate the temperature of the drying room between 30°C to 55°C, the drying capacity of fish is up to 5 kg for medium-sized fish. In this research trial, data from the DHT 11 sensor (which detects temperature) was used to monitor the temperature, which ranged from 33°C to 49°C with a certain percentage of error. At a temperature of 48°C to 52°C, fish can be dried in 18 hours. Dried fish can be detected through the Load Cell sensor which detects the weight of the fish during the drying process. From this research, this automatic salted fish dryer has good performance in drying fish during the rainy season, where the dryer can control the air temperature accurately, thus producing good quality dried fish.

RANCANG BANGUN MESIN PENCACAH SABUT KELAPA MENJADI SERBUK KELAPA (COCOPEAT)

Muhammad Irwandi — 2025-08-22

This study aims to design a portable coconut husk shredding machine capable of producing cocopeat, with an emphasis on ease of operation and mobility. The machine is powered by a 7.5 HP gasoline engine and utilizes a shredding system composed of four cutting blades and ten beaters to break down coconut husks into fine cocopeat particles. The design process follows the systematic VDI 2222 method, which includes need identification, concept development, and selection of the final design. The main focus is to create a compact, lightweight, and easily transportable structure without compromising shredding performance. The resulting design successfully meets the operational needs of field users, particularly in terms of portability and user-friendliness. This project was conducted in Bangka Belitung in 2025.

ALAT PEMBUAT PUPUK ORGANIK OTOMATIS BERBASIS ARDUINO UNO

Amelya Devi Angraini — 2025-08-22

An Arduino Uno-based Automatic Organic Fertilizer Making Tool has been developed to transform household organic waste into organic fertilizer automatically. The tool utilizes Arduino Uno technology, incorporating sensors like the pH sensor and DHT22 sensor to monitor acidity, temperature, and humidity levels during the fertilizer-making process. It systematically processes organic waste through automation, controlling composting parameters in real-time for optimal decomposition and high-quality fertilizer production. The user-friendly system includes a stirrer and humidity control mechanism, along with an LCD screen for monitoring compost conditions. By effectively integrating sensor technology, the tool enhances productivity in organic waste processing and offers a practical solution for converting household waste into beneficial products. This innovation supports environmental preservation and resource utilization efforts in the community.

RANCANGAN ALAT ANGKAT KARUNG BERBASIS MEKANIK KAPASITAS 40 KG

Dede Geovani Erianda — 2025-08-22

An innovation has been developed to support work productivity in the cement industry, namely a lifting aid equipped with a motion mechanism system, the assist mechanical gripper. However, it currently faces limitations in its initial purchase price for small-to-medium-scale cement industries due to the use of a control mechanism system. This final project aims to design a lifting tool based on a simple mechanical system that integrates a gripper with a lever and spring mechanism. The design method includes data collection, alternative design options, manual calculations, and digital simulation using finite element analysis (FEA). Test results indicate that the design of the gripper fingers, lever, spring, and spring cylinder is within safe limits, with safety factors of 2.9 for the gripper, 80 for the spring, and 5.3 for the spring cylinder. Cost validation indicates a production efficiency of 84% compared to commercial grippers.

RANCANG BANGUN RANGKA BAGIAN DEPAN MOBIL LISTRIK

Wahyu Wahyu — 2025-08-22

The development of transportation technology triggers the presence of environmentally friendly vehicles such as electric cars. This car is also developed as a learning medium in vocational education. This article discusses the manufacture of the front of the electric car and its testing. Electric cars use electric motors as the main power source, with energy from batteries. This project designs and builds the frame structure of the front of the electric car focusing on the steering, suspension, and braking systems. The methods used include literature study, discussion, planning, design, workmanship and testing. Before operation, tests were carried out on the suspension, steering and braking systems. The results of the suspension test without load obtained data on the shaft length of 40 mm, with a load of 60 kg the shaft length of 25 mm and with a maximum load of 200 kg the shaft length of 2 mm. The steering system test produced a turning radius of 2 meters at a steering angle of 30 ° and 2.5 meters turning radius at a steering angle of 40˚. Tests on the braking system show that the braking distance is 10.05 m long with a stopping time of 4.3 seconds at a speed of 26.3 km/h, a braking distance of 8.74 m long with a stopping time of 3.2 seconds at a speed of 16.7 km/h, and a braking distance of 4.66 m long with a stopping time of 1.4 seconds at a speed of 8.1 km/h.

SISTEM KEAMANAN RUMAH TERINTEGRASI DENGAN SENSOR REED SWITCH DAN PIR MENGGUNAKAN PLATFORM IOT

Ramadani Bagus Pranata — 2025-08-22

Abstract is arranged in one paragraph, single line spacing with Times New Criminal acts, particularly home burglaries—whether in occupied or unoccupied houses—are still frequently reported. This pushes homeowners to be more vigilant in securing their properties. Despite technological advancements, especially in the field of the Internet of Things (IoT), existing home security systems are still not fully effective. This research proposes a home security system called HERO (Home Reliability Operations) based on IoT, which operates automatically and in real-time. The system uses a PIR sensor to detect movement, an ESP32-CAM OV2640 for visual monitoring, and a buzzer as an alarm alert. To secure entry points, magnetic switch sensors and solenoid door locks are installed on doors and windows. All components are controlled by a NodeMCU ESP32 as the central processor and connectivity hub, and the system is integrated with the Blynk platform for remote monitoring and control via an Android application. This system is expected to improve home security by enabling early detection of suspicious activity and providing real-time alerts to homeowners.

PENDETEKSI BUAH MANGGA MENTAH, MATANG, DAN BUSUK BESERTA PENGHITUNG BERAT BERBASIS MIKROKONTROLER

Ilham Fadillah — 2025-08-22

Fruit sorting based on ripeness and weight is still largely done manually, which poses a risk of inaccuracies, delays, and labor inefficiencies. This research aims to design and implement an automatic mango sorting system that can detect ripeness levels (raw, ripe, rotten) and measure the weight of the fruit. This system uses TCS3200 color sensors, a 20 kg Load Cell weight sensor, and is controlled by an ATMega328P microcontroller. A 20x4 LCD module is used as a user interface. The methods used include acquiring RGB value and weight data, classifying ripeness levels based on predetermined color thresholds, and real-time weight data processing. Testing results show that the system can accurately identify the skin color of mangos and display the weight with an average deviation of ±0.05 kg. This prototype has been proven to improve the accuracy, speed, and efficiency of the sorting process compared to manual methods. The developed tool is a tangible step towards the implementation of smart agriculture, particularly in the post- harvest process, and has the potential for further development in other fruit types.

RANCANG BANGUN MESIN PENGAYAK PASIR GUNA MENINGKATKAN KUALITAS PENGAYAK PASIR UNTUK KONSTRUKSI BANGUNAN

Robert Napitupulu — 2025-08-22

The increasing demand for construction materials, particularly sand, continues to rise in line with the rapid development of infrastructure. Manual sand sieving is still widely used, especially in rural areas, but it has proven to be inefficient due to its labor-intensive nature, time consumption, and limited capacity. Therefore, this final project focuses on designing and building an automatic rotary sand sieving machine with a capacity of 130 kg/hour. The machine is powered by a 5 HP gasoline engine and utilizes a belt and pulley transmission system, combined with a sand mesh size of 6 (2.83 mm). The design process adopts the Research and Development (R&D) method, consisting of problem identification, data collection, design, manufacturing, assembly, testing, and user validation. Based on testing results, the machine is capable of producing consistently fine sand suitable for wall plastering in construction. One of the key advantages of this machine lies in its ease of maintenance, especially in replacing the sand mesh, allowing users to adapt the sieve size according to specific requirements. Furthermore, technical calculations such as torque estimation, motor power, angular velocity, and system efficiency have been comprehensively conducted to ensure optimal performance. The implementation of this machine is expected to significantly improve work productivity, reduce reliance on manual labor, and enhance time and cost efficiency in the sand sieving process at construction sites.

PROTOTYPE ALAT MONITORING KESEHATAN PASIEN DAN PEMANGGIL PERAWAT BERBASIS INTERNET OF THINK (IOT)

Rodo Daniel — 2025-08-22

Nurse response systems rely heavily on the speed of information delivery and mobility. However, many hospitals still use wired call systems with static monitors, limiting mobility and delaying quick responses. This study designs an Internet of Things (IoT)-based nurse call system to monitor patient conditions in real-time and send notifications to nurses' smartphones via the Blynk application. The MAX30102 sensor is used to measure patients’ heart rate (BPM) and blood oxygen levels (SpO₂), while the RFID RC522 module records nurse presence. Test results show the system can accurately send notifications and log data, thus improving response time, efficiency, and the overall quality of nursing services.

PENGGUNAAN METODE RCFA UNTUK MEMPERBAIKI KERUSAKAN SISTEM KELISTRIKAN MOTOR UTAMA MESIN FRAIS ACIERA F3

Mustaqim Mustaqim — 2025-08-22

Damage to the electrical system of the Aciera F3 milling machine caused the main motor to fail to operate, disrupting practical activities at the Bangka Belitung State Manufacturing Polytechnic. This study aims to identify the root cause of the failure and carry out repairs using the Root Cause Failure Analysis (RCFA) approach with the 5 Why technique. The research stages include data collection through technician interviews, visual inspections, and functional testing of the electrical system. The analysis revealed that the damage resulted from a short circuit in the C2 contactor, caused by component aging and the absence of routine inspections. Corrective action was taken by replacing the damaged contactor and auxiliary contact components. As a preventive measure, an electrical inspection checklist was developed to support scheduled maintenance. Post-repair testing showed that the electrical system functioned normally and the machine could operate according to standard specifications. The application of the RCFA method proved effective in resolving the problem comprehensively and laying the foundation for a reliability-based maintenance system.

ALAT PENGHITUNG WAKTU DAN PENGONTROL BRIGHTNESS PADA MONITOR KOMPUTER

Aldy Mahardika Apriliandi — 2025-08-22

Computer monitors are a device that is widely used by all groups, both young and old. This rapid technological advancement can have both positive and negative impacts. The increasingly popular use of the internet can cause users to spend hours in front of computer monitors. Being in front of a computer monitor for too long can have an impact on the sense of sight, namely the eyes. In addition, the monitor screen emits x-rays that can interfere with eye health. Common problems caused by excessive users include the effects of radiation, headaches, insomnia, reproductive disorders, cancer, leukemia, tumors, and other personal health problems. In addition, excessive use of computer monitors can also lead to mild physical fatigue, recurrent headaches, ear disorders, depression, heart attacks, skin cancer, sexual dysfunction, low blood pressure, and body imbalances. Experts suggest that the maximum time to use this computer monitor is 1-2 hours per day, and the need to maintain a safe viewing while using a computer monitor is about 40-50 centimeters from the screen. By keeping the eye away from the screen, the exposure to light received by the eye from the screen can be reduced. To minimize the impact of eye health from exposure to the use of computer monitors, based on the description above, the author took the title of the Final Project, namely "Timer Tools and Brightess Controllers on Computer Monitors".

PENGONTROLAN SINAR LAMPU UNTUK HIDROPONIK BERBASIS MIKROKONTROLER

Boma Firmansyah — 2025-08-22

Modern hydroponic agriculture requires an automated lighting system that can be controlled to ensure optimal plant growth, especially in indoor environments or areas with limited sunlight. This research designs and implements a microcontroller-based lighting control system using ESP32 integrated with Internet of Things (IoT) technology. The system utilizes a light sensor (LDR) to detect the lighting intensity in the plant area, and then the ESP32 microcontroller processes the data to automatically control the LED lights. Additionally, the system features Wi-Fi connectivity, allowing remote monitoring and control through web-based applications or mobile devices. A scheduling feature for light intensity based on plant growth phases is also implemented to enhance energy efficiency and plant productivity. The test results show that the system can maintain the lighting intensity within the optimal range and provide control flexibility for users through the internet network. By utilizing ESP32 as the control center, this system demonstrates the effectiveness of IoT technology in supporting hydroponic agriculture automation.

IDENTIFIKASI DAN PERBAIKAN KERUSAKAN MESIN BUBUT AJAX MELALUI METODE ANALISIS AKAR MASALAH

Fariez Rosanova Rosanova — 2025-08-22

Lathe transverse slide jamming can disrupt the machining process and reduce the quality of work results, on the Ajax 200 E lathe used, damage was found such as a jammed cross slide through the Root Cause Failure Analysis (RFCA) approach and the 5 Why’s method, finishing that the main cause of damage was that the Cross Screw was bent which caused the slide movement to become jerky. After straightening the Cross Screw, the problem was resolved. Observations showed that the slide movement returned to normal. This study emphasizes the importance of technical documentation and work procedures in preventing further damage.

SISTEM SORTIR PAKET OTOMATIS DENGAN CONVEYOR DAN KAMERA ESP32-CAM

Yosafat Hadi Prasetyo — 2025-08-22

The manual package sorting process in the shipping industry is time-consuming and prone to errors. This study aims to design and build an automatic package sorting system to improve efficiency and accuracy. The design method used is VDI 2222 which includes the stages of analysis, conceptualization, design, and completion. The system utilizes a conveyor as a package transfer path, ESP32‑CAM with OCR to read area codes, ultrasonic sensors to detect package presence, and servo motors as guide actuators. The test results show that ESP32‑CAM successfully reads area codes such as “SGL‑B‑06”, “SGL‑B‑07”, and “SGL‑B‑08” accurately; the ultrasonic sensor has an average deviation of 0.32cm; and the entire series completes sorting in less than 30 seconds per package. The implementation of this tool has been proven to optimize the sorting process, minimize manual intervention, and increase the speed and accuracy of package separation based on destination.

RANCANG BANGUN ALAT PENDETEKSI GAS BERBAHAYA (GAS CO_2, NOx, DAN HC) BERBASIS IOT

Surojo Surojo — 2025-08-22

The increase in industrial activities and motor vehicle usage has led to high emissions of hazardous gases which can negatively impact human health and the environment. Therefore, an effective and real-time gas monitoring system is needed. This study aims to design and develop a hazardous gas detection device based on the Internet of Things (IoT) capable of continuously monitoring CO₂, NOx, and HC concentrations. The system uses MQ-series gas sensors integrated with an ESP32 microcontroller as the main data processor, along with an IoT platform to display measurement results online through a dashboard. The collected data can be accessed in real time via the internet, allowing users to monitor remotely. Testing results show that the device can detect gas concentration changes with good accuracy and fast response time. This tool is expected to assist in early detection of air pollution and raise awareness of the importance of healthy air quality.

SISTEM DETEKSI NOMINAL UANG KOIN BERBASIS COIN ACCEPTOR

Ratna Susilawati — 2025-08-22

Saving money is an important but often overlooked habit, especially when it comes to small coins. Many people consider coins to be impractical and worthless, so their existence tends to be overlooked. This research develops a digital piggy bank system based on coin acceptor and ESP32 microcontroller that is able to detect the nominal value of coins automatically. The system not only calculates the total amount of money inserted, but also displays the nominal fraction inserted and the total amount of coins inserted directly through a Liquid Crystal Display (LCD) and sends the data to a digital application, namely telegram bot, using a Wi-Fi connection. This device is able to detect five types of rupiah coins: Rp100, Rp200, Rp500 (two types), and Rp1,000. The addition of the IoT feature allows users to monitor the amount of savings remotely in real-time. The test results show that the device can identify the nominal accurately and run stably. This prototype is expected to increase interest in saving, especially among children and adolescents, with an educational approach. The limitation of this tool is the dependence on Wi-Fi connection, the system will not be active without the network.

PERBAIKAN APRON DAN TAILSTOCK PADA MESIN BUBUT DOALL

Muhammad Yori Febrianto — 2025-08-22

A lathe machine is one of the primary machine tools used in manufacturing processes, which rotates a workpiece to facilitate cutting operations with the aid of a cutting tool. The apron and tailstock components on the DoAll Lt. 13 No 03 lathe play a crucial role in maintaining precision and ensuring smooth turning operations. The apron functions to control the automatic movement of the cutting tool along the longitudinal and transverse axes, while the tailstock provides additional support for the workpiece, especially during long turning operations or drilling. Common issues with the apron include wear on the lead screw, whereas the tailstock often experiences misalignment and wear on the bushing thread of the spindle. This study was conducted to repair these damages through disassembly, cleaning, visual inspection, measurement, replacement of damaged components, and realignment. The repair results showed improved machine performance in terms of movement precision and operational stability. By performing regular maintenance and repairs, the lathe machine’s working efficiency can be sustained over the long term.

RANCANG BANGUN RANGKA BAGIAN BELAKANG MOBIL LISTRIK

Bayu Ardiyanto — 2025-08-22

The advancement of transportation technology has driven innovation in environmentally friendly vehicles such as electric cars. This project aims to support vocational education through the fabrication and assembly of the rear frame of an electric vehicle, which includes the drive system, suspension, and frame structure. The stages involved include data collection, fabrication, assembly, and testing. Suspension testing results showed that the shaft length without load was 40 mm, while under a load of 60 kg, the shaft length decreased to 27 mm, and under maximum load, it further reduced to 5 mm. Testing of the electric vehicle demonstrated an average speed of 23–24 km/h. In the acceleration test, the first and second trials reached a speed of 7.78 m/s in 10 seconds, resulting in an acceleration of 0.778 m/s². In the third trial, the vehicle reached a speed of 8.06 m/s in 9 seconds, yielding an acceleration of 0.864 m/s²

RANCANG BANGUN PORTAL OTOMATIS MENGGUNAKAN PENGENALAN PLAT NOMOR MENGGUNAKAN CAMERA

Irgi Setiawan Ardhana — 2025-08-22

Currently, every shopping center such as a mall must have good parking management, starting from recording incoming vehicles to recording exits based on certain rates charged to visitors. The increasing number of visitors coming to these parking areas will increase the busyness of parking operators. Therefore, a way is needed to help facilitate data collection of incoming and outgoing vehicles. Some devices used to facilitate parking data collection are by using computer devices, which have been widely applied for parking management both in shopping centers and offices. Data collection of vehicles entering and leaving the parking area, as well as calculations regarding the length of parking time and fees charged can be completed properly.

PERBAIKAN COUPLING PADA POROS GRINDING WHEEL MESIN GERINDA DATAR REFORM PSGS-4070 AH

Aldi Yusuf Saputra — 2025-08-22

The Reform PSGS-4070 AH surface grinding machine in the Mechanical Laboratory of the Bangka Belitung State Polytechnic of Manufacturing is experiencing issues with the grinding wheel not rotating and producing abnormal sounds when activated. Due to this malfunction, the surface grinding machine cannot be used for learning and production processes. The final project aims to identify the cause of the damage and repair the grinding wheel on the surface grinding machine using observation, manual book study, interviews with technicians, and 5 Why analysis methods. The repair was carried out through identification, disassembly, replacement of damaged components, and reassembly. Post-repair testing showed that the grinding wheel had returned to normal rotation, and the abnormal sounds had disappeared. This project also recommends preventive maintenance to maintain the performance of the machine.

PERANCANGAN MESIN PENCUCI KERANJANG INDUSTRI DI PT. BERDIKARI METAL ENGINEERING

Areza Muharramin — 2025-08-22

Industrial crate washing is a crucial activity in maintaining hygiene and operational efficiency within the manufacturing sector. PT. Berdikari Metal Engineering faces challenges due to a manual washing process that is labor-intensive, time-consuming, and only capable of cleaning 25 crates per day out of a 150-crate target. This study aims to design an automatic crate washing machine with a focus on high-pressure washing systems to enhance process effectiveness. The design method follows the VDI 2222 approach, consisting of planning, conceptualization, design, and simulation stages. The machine features three main zones: washing, rinsing, and drying, where washing and rinsing utilize a jet pump system. Technical calculations determined that the required motor pump power for the washing zone is 10 HP, based on the number of nozzles, flow rate, and spray pressure of 80 psi. Simulation results using SolidWorks indicate that the machine structure is safe, with stress and safety factor values within acceptable limits. In conclusion, the design successfully delivers an efficient washing system that meets the company's daily production targets and reduces reliance on manual labor.

KOTAK PENITIPAN ALAS KAKI DI MASJID BERBASIS OTP VIA SMS DENGAN OPERATOR KONTROL

Adissa Ramadhani — 2025-08-22

This research aims to design a safe, easy-to-use, and efficient footwear storage system in mosques by utilizing OTP (One Time Password) technology sent via SMS and controlled by an operator. The methods used include literature studies, hardware and software design based on an ESP32 microcontroller and a SIM800L GSM module, tool assembly, and comprehensive system testing. Tests were conducted to measure the speed of OTP delivery, code validation, automatic lock performance, and the effectiveness of user interaction via the LCD and keypad. The test results show that the system is able to send OTPs in an average of 4–6 seconds, verify codes accurately, control the lock, and provide notifications to operators responsively. This system has been proven to improve storage security and provide greater comfort for the congregation, and can be implemented effectively in medium to large-scale mosque environments.

ANALISA KEBUTUHAN DAYA MOTOR LISTRIK PADA MESIN SARI NANAS

Fatra Fatra — 2025-08-22

The pineapple juice extractor machine is used for the process of pressing pineapples to produce juice while separating the pulp. The currently available machines generally use electric motors with a power of 0.35 HP. However, with that motor power, the existing machines are not able to press pineapples optimally, as the electric motor tends to lose power during operation. Therefore, this research focuses on calculating the appropriate motor power to be used in a pineapple juice extractor machine with a capacity of 5 kg/hour. The method applied involves calculating several parameters, including load, capacity, torque, and motor power. This is intended to ensure that the motor used is truly capable of accommodating the desired machine capacity. Based on the calculations performed, the most suitable electric motor for a pineapple juice extractor machine with a 5 kg/hour capacity is one witch a power rating of 0.5 HP.

PEMBUATAN ALAT MISTAR PADA OLAHRAGA LOMPAT TINGGI MENGGUNAKAN PANEL SURYA BERBASIS IOT

Nashrul Mutttaqin — 2025-08-22

High Jump is one of the most popular sports in the world. The ruler is the main measuring tool in this sport, but until now the height of the ruler is still manually adjusted. This study aims to design and create a high jump ruler that uses solar energy and is based on the Internet of Things (IoT). This tool is designed to help high jump athletes measure jump heights more accurately and efficiently. This system uses a NodeMCU ESP32 microcontroller and ultrasonic sensors to detect the position of the ruler, real-time data, whether or not the athlete is successful in jumping, then the data is sent to the IoT server to be processed and displayed in the form of real-time data. Solar energy is used as a power source to drive this system, so that this tool can be used in the field without the need for additional electricity. The results of the study show that this IoT-based high jump ruler can measure jump height with high accuracy and can be used as a training/tournament aid for high jump athletes.

RANCANG BANGUN ALAT PENGANGKAT SATU BUAH GALON PADA GEDUNG BERTINGKAT

Muhammad Ramadhika Irsan — 2025-08-22

The distribution of bottled drinking water in gallon containers in multi-story buildings faces various challenges. The 19-liter gallon, weighing around 19 kg, is often manually lifted from the first floor to the second floor. This poses risks of physical fatigue, work injuries, and reduces operational efficiency. Some of the main issues faced include: heavy loads that complicate the manual transportation process, decreased operational efficiency due to time and energy being drained, and high safety risks when carrying gallons up stairs. To address these problems, a lifting tool with a pulley system capable of safely and efficiently lifting gallons to a certain height is needed. This tool is designed with a VDI 2222 method approach to reduce manual workload, enhance safety, and support productivity. With this system in place, gallon distribution in multi-story buildings becomes more practical and organized, and the workforce can be redirected to more value-added tasks.

PROTOTYPE INTEGRASI APLIKASI MOBILE MIT APP INVENTOR DALAM MONITORING KINERJA BATERAI KENDARAAN SEPEDA MOTOR

Haris Adi Putra — 2025-08-22

As the number of vehicles in Indonesia increases, the need for battery monitoring systems becomes more crucial. This study develops a battery performance monitoring system for motorcycles integrated with a mobile application based on Mit app inventor. The system utilizes an ESP32 microcontroller along with voltage, current (INA219), and temperature (DS18B20) sensors to read battery parameters in real-time. The State of Charge (SoC) is calculated using a modified coulomb counting algorithm. An active protection feature using a relay is included to prevent overcharging, overcurrent, and short circuits. Test results show that under normal conditions, battery voltage ranges from 10.5V to 12.37V with an average load current of 233.4 mA. During a 30-minute charging process, the SoC increased by 10% with an average charging voltage of 14.97V. Data is displayed in real-time via an LCD and the mobile application, enabling users to efficiently monitor battery status and take preventive actions. This system enhances the reliability and safety of battery usage in motorcycles.

PENERAPAN METODE ROOT CAUSE FAILURE ANALYSIS DAN PENGUJIAN PADA PERBAIKAN QUICK TOOL CHANGE SYSTEM DI MESIN FEHLMANN P18s

Indra Feriadi — 2025-08-22

This study aims to analyze and repair damage to the Fehlmann P18s milling machine No. 04 used in the Mechanical Laboratory of Polman Babel. The machine was inoperable due to electrical system failure and a malfunction in the Quick Tool Change System (QTCS). A Root Cause Failure Analysis (RCFA) method using the 5 Why analysis was applied to identify the root causes. The investigation revealed failures in electrical components such as contactors, selector switches, push buttons, fuses, capacitors, and diodes caused by unstable current. Furthermore, the QTCS could not clamp the tool holder properly due to corrosion on spindle components, bearings, and housing. The repair process involved replacing and cleaning damaged parts, followed by re-testing including geometric and functional tests. The testing showed that the machine was successfully restored to its operational state and complied with geometric precision standards. As a preventive measure, a time-based preventive maintenance plan was developed for both the electrical system and the QTCS to avoid recurring failures. This project proves that the RCFA method is effective in analyzing machine issues systematically and comprehensively.

PERANCANGAN ALAT PENEKAN DAN PENCETAK TERASI DENGAN KAPASITAS 50 KG PER JAM UNTUK UMKM TERASI DI TOBOALI

Bimo Prakoso — 2025-08-22

In the Toboali region, Mang Dodi's terasi UMKM company still uses traditional methods, which leads to a drawn-out manufacturing process, uneven product quality, and small production levels. Improved prawn paste printing techniques are therefore required in order to address the issue. To solve this problem, a faster mould and cutter should be designed utilising the VDI 2222 research approach. A methodical design process that allows for detailed process tracing is what distinguishes this approach. The two phases of the VDI 2222 method research process are concept formulation and planning. In the context of the integrated carrier system, the screw and printing system, and the cutter inside a single system, the study's findings help to clarify the alternative selection idea. This result reveals the ability to manufacture uniform goods, speed up processing times, and increase the quantity of products, all of which are commensurate with the research objectives.

ANALISIS KERUSAKAN MESIN FRAIS FEHLMANN PICOMAX 20 MENGGUNAKAN METODE ROOT CAUSE ANALYSIS DI POLMAN BABEL

Harpois S Sitinjak — 2025-08-22

This study aims to identify the root cause of damage to the vertical head motion mechanism of the Fehlmann Picomax 20 milling machine at the Bangka Belitung State Polytechnic of Manufacturing using the Root Cause Analysis (RCA) method. This descriptive research with a qualitative approach involves collecting primary data through direct observation and interviews with machine operators and technicians. Secondary data is obtained from the machine's repair history and related literature. Analysis using the 5W+1H and Fishbone Diagram methods reveals that the machine damage is caused by irregular maintenance, the use of inappropriate lubricating oil, the use of low-quality components, and untrained operators. The recommendations for improvement include operator training, regular repairs, the use of appropriate materials, and environmental maintenance. This research successfully achieves its main objective, which is to systematically identify and analyze the root cause of machine damage and provide improvement recommendations to prevent recurring damage.

RANCANG BANGUN ALAT PENGUKUR DENYUT JANTUNG, KADAR OKSIGEN DAN TINGGI BADAN SERTA BERAT BADAN BERBASIS IoT

Galang Samudra — 2025-08-22

The advancement of Internet of Things (IoT) technology has enabled the development of more efficient and integrated health monitoring systems. This final project aims to design and develop an IoT-based health monitoring device capable of measuring four key health parameters: heart rate, blood oxygen saturation (SpO₂), body height, and body weight. The system utilizes the MAX30100 sensor to detect heart rate and SpO₂, the HC-SR04 ultrasonic sensor to measure height, and a Load Cell combined with the HX711 module to measure weight. The ESP32 microcontroller functions as the main controller that processes and transmits sensor data to Firebase in real-time via Wi-Fi connection. Measurement results are displayed directly on an OLED screen and a web-based dashboard with a simple and informative interface. Based on testing results, the system demonstrates high accuracy, with an average accuracy of 98.83%. This tool is expected to assist individuals in monitoring their health independently and efficiently.

RANCANG BANGUN MESIN MOLEN KAPASITAS 30 KG

Albar Turnama — 2025-08-22

The production process of decorative cement-based plant pots requires a homogeneous material mixture to ensure consistent product quality. However, small-scale craftsmen often rely on manual mixing methods, which are time-consuming and result in inconsistent material properties. This study aims to design and develop a 30 kg-capacity concrete mixer machine to meet the needs of small-scale cement pot producers. The design process follows the VDI 2222 engineering design methodology, which includes stages of planning, conceptualizing, designing, and finalizing the product. The proposed design prioritizes work efficiency, ergonomic operation, and usability in limited workspace environments. The machine utilizes a 1 HP electric motor, a pulley transmission system, and a 1:10 gearbox ratio, producing a drum rotation of 30 RPM. The targeted mixing time is 10 minutes per batch, which is sufficient to produce five to six medium-sized pots. The implementation of this mini mixer machine is expected to improve productivity, reduce labor time, and enhance the consistency of concrete quality in small-scale decorative cement-based industries.

RANCANG BANGUN MESIN SANGRAI BIJI KOPI OTOMATIS KAPASITAS 1 KILOGRAM

Vrizky Aryal Fernando — 2025-08-22

Coffee is an important commodity that has high economic value, both at the national and global levels. The roasting process of coffee beans plays a crucial role in determining the flavor and quality of the final product. However, the automatic roasting machines available on the market are generally intended for large-scale production with prices that are not affordable for Micro, Small, and Medium Enterprises (MSMEs). Therefore, this research aims to design and build an economical and easy-to-operate automatic coffee bean roasting machine with a capacity of 1 kilogram. This machine uses a manual heating system, manual temperature control, and is equipped with temperature sensors and an LCD display to monitor the roasting process. The design and construction of this machine are expected to provide an effective and efficient solution for MSMEs to improve the quality of their roasted coffee production. Additionally, an economic study was also conducted to compare the production costs of this machine with the market prices of similar machines.

RANCANG BANGUN MESIN PENYORTIR DAN PENCACAH SAMPAH ORGANIK MENGGUNAKAN SENSOR

Surojo Surojo — 2025-08-22

Waste is one of the problems that has not been handled properly, which comes from animals, humans, and plants. Based on the problem data, one solution to reduce the increasing amount of waste is to recycle the waste. The purpose of this tool research is to design and build an organic waste sorting and shredding machine using sensors and how to test the organic waste sorting and shredding machine using sensors with a capacity of 1 kg in stages. This research method uses the R&D (Research and Development) method which starts with identifying problems and needs, literature studies, planning, design creation, testing and evaluation. From the results of this study, a design for an organic waste sorting and shredding machine using sensors that uses a 1 HP electric motor as the main drive with a pulley and belt drive transmission system was obtained. Overall, this machine functions well. Based on the results of the trials conducted in this tool research, the results of the average percentage level of the sorter to separate organic and non-organic 1kg waste in stages were 70% successful and 30% failed. And for the average percentage of the results of shredding 1kg of organic waste per process, 65% is coarse waste and 35% is fine waste.

IMPLEMENTASI METODE VEREIN DEUTSCHER INGENIEURE (VDI) 2222 DALAM RANCANGAN MESIN PENYANGRAI DAUN TEH TAYU

Nisa Aulia — 2025-08-22

Tayu tea plant is a type of tea native to West Bangka, specifically in Tayu Hamlet, Ketap Village, Jebus District, and is known for its benefits as a herbal drink. However, the processing of this tea is still done manually and can be quite troublesome. In addition, there are several issues with the previous machine, such as dried tea leaves entering the holes of the perforated drum and the drying process not being continuous, as the machine must be turned off when inserting or removing materials. Through this final project, a continuous rotary dryer system for roasting Tayu tea leaves was designed. This machine uses a perforated stainles steel drum with 1 mm hole size and is equipped with internal fins that help stir and push the tea leaves automatically to the output once dried. The design process followed the VDI 2222 method, starting from problem identification, concept development, simulation, to prototype creation. This design is expected to help improve the productivity and quality of continuous Tayu tea processing.

PENGEMBANGAN MEDIA PEMBELAJARAN PRAKTIK BONGKAR PASANG POMPA SENTRIFUGAL DI POLITEKNIK MANUFAKTUR NEGERI BANGKA BELITUNG

Muhamad Ridho Syahputra — 2025-08-22

Centrifugal pumps are one type of pump that is widely used in industry and everyday life. This learning media is designed to provide a comprehensive understanding of the working principles, components, and applications of centrifugal pumps. In the working principles section, it is explained how centrifugal pumps move fluids using centrifugal force generated by a rotating impeller. Fluids enter through the inlet and are accelerated by the impeller, then released through the outlet with higher pressure. The main components of centrifugal pumps such as impellers, casings, shaft seals, and bearings are also explained in detail. Each component has an important function and role in pump efficiency and performance. In this final project, the author developed a learning media for pump disassembly and assembly to meet the material achievements in the syllabus. The methods used in this final project are data collection, identification of component needs, development of plans, creation of learning media, trial of learning media and implementation. After the development of learning media, it is hoped that the learning of the practical course on pump component disassembly and assembly and repair can be met so as to increase knowledge and understanding as well as skills for students.

PENGUJIAN PROSES BALANCING PADA BLOWER

Handika Syaputra Arianto — 2025-08-22

This article discusses the balancing process on a blower using the 4-run method and the balancer feature on the Vibroport 80. The initial vibration measurement of the blower was recorded at 2.28 mm/s, with the impeller weighing 2.5 kg. After adding a 50-gram trial weight at an angle of 0°, the resulting vibration was 0.956 mm/s RMS. At 120°, the vibration measured 2.99 mm/s, and at 240°, it increased to 3.64 mm/s. Based on the calculations performed, a correction weight of 150 grams was determined at an angle of 20°, successfully reducing the vibration to 0.965 mm/s RMS. Using the balancer feature method, the initial vibration value of 1.91 mm/s gradually decreased to 1.36 mm/s after six stages of correction weight application. From the results of both tests, the 4-run method was found to be the most effective for balancing the blower

ALAT SENSOR PARKING BERBASIS IOT

Muhammad Aldo Nurfahmi — 2025-08-22

The development of Internet of Things (IoT) technology has opened new opportunities in creating efficient and modern parking systems. This study aims to design and develop an automatic parking sensor device based on IoT that can detect the presence of vehicles and display parking availability data in real-time via an application. The system utilizes ultrasonic sensors to detect vehicles, an ESP32 microcontroller as the control center, and an IoT platform to transmit data to the user’s device. The test results show that the system operates with more than 95% accuracy and provides fast and precise parking slot availability information. In conclusion, this device is effective in assisting users to find available parking spaces and has the potential for further development in smart parking systems.

RANCANGAN MESIN PENCACAH JANJANG SAWIT

Rizky Indryanto — 2025-08-22

Empty oil palm bunches (OPEFB) are solid waste from the palm oil processing industry which have quite large volume and have the potential to pollute the environment if not managed properly. This study aims to design and simulate an oil palm bunch shredding machine as a solution to utilize this waste as raw material for organic fertilizer. The design process is carried out using the VDI 2222 method approach, which includes the planning, conceptualization, design, and completion stages. The designed machine has a shredding capacity of 320 kg/hour using an electric motor drive system and V-belt transmission. Evaluation of three concept variants is carried out based on technical aspects, and the assessment results show that the second concept variant is the best choice. Visual simulation with SolidWorks software is used to validate the machine design digitally. The final results show that this shredding machine is able to process OPEFB efficiently, as well as contributing to waste reduction and increasing added value in the oil palm plantation sector.

PERBAIKAN SISTEM PENGEREMAN PADA MESIN BUBUT DoAll Lt 13 DI BENGKEL MEKANIK POLMAN BABEL

Ferdian Ferdian — 2025-08-22

Repair the braking system on the DoAll Lt 13 no 4 lathe In completing the final project entitled Repair of the Cooling System and Braking System on the Doall Lt13 Lathe at the Bangka Belitung State Manufacturing Polytechnic, stages of adjustment are made to the flowchart diagram. Problem identification is a crucial stage because if the problem is not identified correctly, the solution applied may not be effective or may even worsen the situation, accurate and in-depth identification also helps ensure that the solution developed will be relevant and effective. In the data collection action there are several methods used to find out the problems and damage that occur in the DoAll LT 13 lathe. The methods used are the technician interview method, looking at the manual book, looking at the machine history book and conducting direct observation on the machine. The following is the initial data from several methods carried out Based on the results of the DoAll LT13 Lathe Brake System repair function test using a clutch motor braking system, the braking system was successfully repaired, and was able to work well and was able to brake. And for the repair of the cooling system on the DoAll Lt 13 no 4 lathe, it was also successfully repaired and obtained optimal results for all components that were repaired.

RANCANG BANGUN ALAT PEMOTONG BATA RINGAN HEBEL GERAK HORIZONTAL

Ismail Ismail — 2025-08-22

Silica sand is one of the abundant natural resources in Bangka Belitung Province and has a main content of SiO₂ more than 90%. This material is widely used in the construction industry, especially in the production of lightweight bricks (hebel) as a corrective aggregate. However, the challenges of producing lightweight bricks in the region still lie in the inefficient manual cutting system which poses risks to workers. Therefore, this final project aims to design a simple, efficient, easy-to-assemble and operate hebel lightweight brick cutting tool, while prioritizing workplace safety. The design is carried out using the VDI 2222 method approach. The operating principle of this tool uses an electric motor to drive the winch system and the cutter shaft based on pneumatic linear motion. With the development of this tool, it is expected that MSME actors can significantly improve productivity and the quality of lightweight brick products.

PERBAIKAN SISTEM PENGULIRAN PADA MESIN BUBUT DoALL LT 13 DI BENGKEL MEKANIK POLMAN BABEL

Sandika Yudha Pirmansyah — 2025-08-22

The automatic threading system (half‑nut lever) on the DoALL LT‑13 lathe at Polman Babel's mechanical workshop failed to operate, disabling thread-cutting capability. This research aimed to document the repair process and post-repair functionality tests. The methods included 5 Why analysis, apron disassembly, cleaning, gear-idler clearance adjustment, gear surface lapping, and re-calibration of the half‑nut lever. Tests included functional check, dimensional accuracy, and thread cutting on three specimens: M27×3, M20×2.5, and M18×2.5. Results showed normal operation and all threads met ISO tolerance. The lathe is now functional for educational and light machining purposes.

PENGEMBANGAN ALAT UJI KOMPONEN ELEKTRONIKA DASAR BERBASIS ARDUINO ATMEGA 2560

Mufti Aditya — 2025-08-22

The advancement of electronic technology requires the availability of supporting tools that can test components quickly and accurately. One common problem encountered in the field is the difficulty in identifying the working value of components such as Zener diodes due to faded markings or labels on the component body. Additionally, testing basic components, such as regular diodes, capacitors, SCRs, and transistors, is still often done manually, which is an inefficient process. Therefore, this final project aims to design and develop a basic electronic component testing device based on a microcontroller, which is capable of detecting the condition of components and displaying the test results automatically and informatively. The method used in this project includes the stages of design, assembly, and programming using the Arduino ATmega2560. The tool is equipped with two 20x4 I2C LCDs; one is dedicated to displaying the working voltage of Zener diodes, while the other displays the status of other components such as diodes, SCRs, transistors (NPN and PNP), and capacitors. The system operates by utilizing a B25 voltage sensor and the voltage divider principle to detect the working values of each component. The test results indicate that this device accurately displays the Zener diode’s working voltage with an average error of less than 10%. Furthermore, the tool can identify the condition of other components with valid and consistent results.

REKONDISI HEAD MESIN FRAIS FEHLMANN PICOMAX 20 DI LABORATORIUM TEKNIK MESIN POLITEKNIK MANUFAKTUR NEGERI BANGKA BELITUNG

Bindara Bindara — 2025-08-22

This study aims to perform a reconditioning of the Fehlmann Picomax 20 milling machine head in the Mechanical Engineering Laboratory of the Bangka Belitung State Polytechnic of Manufacturing. The main damage to the machine head was caused by the accumulation of swarf and frozen grease in the gear and machine column sections. The reconditioning process includes data collection, problem identification, root cause failure analysis using the Root Cause Failure Analysis (RCFA) and 5-Why Analysis methods, repair planning, the repair process, and testing after the repair has been carried out. The test results show that the machine head has been able to function again according to its specifications, including in functional testing, machine performance testing, and column straightness testing. In addition, preventive maintenance has been designed to prevent similar damage from recurring in the future. This project is expected to improve the effectiveness of student learning and extend the operational life of the machine.

PERBAIKAN SISTEM PENDINGIN DAN PENGEREMAN PADA MESIN BUBUT DO ALL BERBASIS KOREKTIF MAINTENANCE DI BENGKEL POLMAN BABEL

Nurul Syukori Putra — 2025-08-22

This study aims to repair the cooling and braking systems of the DoAll LT 13 lathe at the Polman Babel Workshop by applying the Corrective Maintenance method. This lathe has been in operation for 28 years and has experienced failures in both the cooling and braking systems, resulting in decreased performance. The repair process began with problem identification using the 5 Why method to find the root causes of the failures. The analysis revealed that the main issues were a non-functional electric motor and the absence of caliper and master cylinder components. The repair steps included replacing the electric motor, installing the cooling hose and valve, and modifying the braking system using spare parts from a Panther vehicle. Testing after the repairs showed that both the cooling and braking systems were functioning properly. This study concludes that the application of Corrective Maintenance is effective in restoring the functionality of the DoAll LT 13 lathe and ensuring the availability of the machine for student practical activities.

RANCANGAN MESIN PENGADUK ADONAN PEMPEK

Enggi Pramita Astuti — 2025-08-22

Pempek is made from a mixture of ground fish, tapioca, water and other spices which are usually served with vinegar or vinegar. In the manufacturing process, the community and small and medium MSMEs still use manual tools and labor. However, for the production process of more pempek, more time and labor are needed. From these problems, the idea emerged to design a pempek dough mixer machine to help the process of stirring pempek dough with a capacity of 5 kg. The method used in the design of this machine uses VDI 2222. This method has 4 (four) stages, namely analysis, conceptualization, design, and completion. From this conceptual stage, an alternative part is produced. Alternative parts functions are then assessed to determine alternative parts used in the design of the machine. From the method used, an analysis of the calculation and movement of the engine with a rotation of 1500 Rpm was obtained.

RANCANGAN PINTU PADA MOBIL KHUSUS PENGGUNA KURSI RODA

Muhammad Adit Putra Mahardika — 2025-08-22

Public services should be accessible to all citizens, including persons with disabilities. However, they still face various forms of discrimination, particularly in terms of physical accessibility and neutral public service policies that do not accommodate their needs. One of the major challenges is the difficulty in using public transportation, which significantly affects their mobility, employment opportunities, and social interaction. This final project aims to design a vehicle door that is accessible and user-friendly for wheelchair users, with a focus on enhancing independent mobility. The design process refers to the VDI 2222 methodology, starting from identifying user needs, developing design concepts, to evaluating the proposed solution. One of the main issues in conventional vehicle design is the door mechanism, which often fails to consider the specific needs of wheelchair users. Common problems include narrow door openings, high floor levels, and unfriendly opening-closing mechanisms. This study proposes several modifications, such as wider door openings, lower floor height, and the use of sliding or automatic doors to improve accessibility. The proposed design is expected to offer a practical and applicable solution that enhances the mobility and quality of life of people with disabilities, especially wheelchair users, in Indonesia.

SISTEM MONITORING SUHU MENGGUNAKAN INTERNET OF THINGS PADA COLD CHAIN STORAGE VAKSIN

Rohman Fadhlur — 2025-08-22

The importance of maintaining vaccine temperatures between 2–8°C in the distribution chain requires an accurate and real-time monitoring system. This study designed a prototype of an “IoT Temperature Monitoring System for Vaccine Cold Chain Storage” based on ESP32, DS18B20 sensor, GPS NEO-6M, 4×4 keypad, and magnetic lock, with MQTT communication and Node-RED visualization. The methods include literature review, hardware/software design, and functional testing to assess temperature reading accuracy, GPS coordinate precision, lock strength, and PIN input reliability. Results show an average temperature error of 1.9% (98.05% accuracy), GPS error < 1%, and the security system functions as specified. The system can automatically and in real-time monitor temperature, location, and vaccine access, supporting more efficient and accurate vaccine management. In conclusion, this prototype is effective and ready for field implementation.

PEMBUATAN MEDIA AJAR RANGKAIAN LISTRIK DAN SIMULASI MELALUI APLIKASI SIMURELAY

Ragil Afrizal — 2025-08-22

The problem in the practicum of electrical circuits at the Bangka Belitung State Manufacturing Polytechnic is the unavailability of structured, safe, and effective teaching media. This causes difficulties for students in understanding the concept of wiring diagrams, the use of electrical components, as well as motor control and lighting systems. The purpose of this final project is to design and create simulation-based teaching media for electrical circuits using the Simurelay application. The methods used include data collection through observation, interviews, and practical experience evaluation. The media is designed using industry standard electrical components such as contactors, relays, transformers, timers, and 3-phase electric motors. The test results showed that all circuits, including AC/DC light circuits, traffic light simulations, and CW, CCW, and star-delta motor controllers, were successfully executed according to function. Simulations using the Simurelay application confirm that the designed scheme has run well and according to plan. This media is considered to facilitate the learning process, improve understanding of basic electrical concepts, and support safety and efficiency in practicum. Thus, this teaching media is feasible to be applied as a teaching aid in the technical vocational education environment.

ANALISIS KERUSAKAN DAN PERBAIKAN ERETAN MELINTANG PADA MESIN BUBUT MAWITEC MENGGUNAKAN METODE RCFA

Dheo Revando — 2025-08-22

Jamming on the lathe machine’s cross slide can disrupt the machining process and reduce the quality of the work result. On the MAWItec BU16 lathe machine used in the Mechanical Engineering Laboratory of Politeknik Manufaktur Negeri Bangka Belitung, a malfunction was found in the form of a jammed cross slide. Through the Root Cause Failure Analysis (RCFA) approach and the 5 Whys method, it was identified that the main cause of the failure was the incorrect installation of the nut screw, which led to friction with the cable pipe. After disassembly and repositioning of the component properly, along with the development of assembly SOPs, the issue was successfully resolved. Evaluation showed that the cross slide movement returned to normal. This study highlights the importance of technical documentation and work procedures in preventing similar failures.

MODIFIKASI MESIN PENGGILING IKAN

Muhammad Bilal Pratama — 2025-08-22

Along with the development of the era, there have been many fish floss, kricu, kretek manufacturers that have used machines. However, there are still many machines that use combustion engines, which make workers uncomfortable because the engine is very wasteful of fuel and pollutes the air. And here the author wants to modify the wasteful and polluting combustion engine with an electric motor that is safe and does not pollute pollution. The implementation method used in making this final project is with the stages of the implementation process in the form of a flowchart including problem identification, data collection through surveys and literature studies, working drawings, machine manufacturing, machine assembly and testing. Based on the results obtained, a fish grinder machine uses a 6.5 HP electric motor with 3600 Rpm as the drive system. The transmission system used in this machine is a pulley and V-belt, and uses a horizontal system with a screw as a dough crusher. From the results of the machine test without load, all components in the animal feed crusher machine function properly. The machine test with a load shows that this machine is capable of making feed with a capacity of 55 kg / hour. This machine can be a solution for employees to overcome difficulties in the manual grinding process, as well as increase efficiency and productivity in the dough.

RANCANGAN MESIN PENGOLAHAN TANAH UNTUK JENIS TANAH PODSOLIK MERAH KUNING

Wahyu Pandya Wibowo — 2025-08-22

One of the secondary soil processing machines on the market is a cultivator machine. Cultivator machines are soil tillage machines with a type of soil tillage, namely rotary plows or soil loosening. The Bangka Belitung State Manufacturing Polytechnic Campus has one of the conventional cultivator machines branded firman ftl 900 h powered by a 7 hp motor and a type of J type rotary blade. Then the curved angular shape causes high tension on all parts of the blade when penetrating the hard ground surface and also the wheel mechanism works in one mechanism with the blade so that the movement of the machine only relies on the blade. The red and yellow podsolic soil in Bangka Belitung has a medium to strong character with flat reliefs with dense or mountainous clots. The existence of these problems prompted the author to develop a soil processing machine design for the type of red and yellow podsolic soil. The implementation method in this final project research uses a general research method that can be formulated into several stages, namely the design stage, the realization stage, and the final stage. The results obtained after designing the tillage machine on the cultivator machine are other types of blades, namely curved C-type blades, suspension wheel shifting systems using shock absorbers, and the addition of covers as additional protection for users. For the success of the design, proof is carried out through FEA (Fenite Analysis Element), namely material strength and safety factors with safe results.

MODIFIKASI MESIN PENGUPAS SABUT KELAPA

Bima Ariantama — 2025-08-22

Coconut fruit has various benefits, ranging from its use as a source of food, drink, medicine, to raw materials in the cosmetic industry. Almost all parts of the coconut fruit can be used, such as coconut leaves, wood, coconut water, coconut shells and coconut fiber. Coconut coir is used as a raw material in the manufacture of strong and durable ropes, webbing, brushes, brushes, broom sticks, and fabrics. In the Bangka Belitung Islands, people still use sharpened machetes/machetes and crowbars as tools for peeling coconut coir. The purpose of modifying the coconut coir peeling machine is to reduce the failure rate of stripping coconut coir by prioritizing work safety and speed in stripping coconut coir, therefore we need a coco peeling machine that can achieve the desired goal. At this stage the design process is carried out by applying the VDI 2222 (Verein Deutsche Ingenieuer) method. Modification of the coco peeling machine can peel the coco with the fastest time of 1 minute and the longest time of 2 minute

MODIFIKASI MODULAR PRODUCTION SYSTEM (MPS) BERBASIS PROGRAMMABLE LOGIC CONTROL (PLC) SIEMENS

Gaza Al Abizari — 2025-08-22

The automation process in today's industrial world has become a necessity to realize the industrial era 4.0. The automation process in production also improves many aspects ranging from time, quality, and quantity of production results. Therefore, automation personnel or technicians who are experts in designing, manufacturing, repairing, and maintaining the hardware and software used are needed. These skills must be prepared with training tools that support current industry standards. This research aims to improve and test the feasibility of devices. The methodology used in this research is planning tool repair, checking each component, repairing or replacing damaged components, and preparing a guidebook that will later be used in the learning process. Modular Production System (MPS) that will be modified is divided into three modules namely the distribution, processing, and sorting station. Each module has sensors, fiber optic, proximity, and there is an opto-electric sensor. The Programmable Logic Controller (PLC) device to be used is Siemens with Totally Integrated Automation (TIA) Portal Version 15. Testing is carried out to test the feasibility of the tool the quality of the module, and whether it is still feasible and can be used in learning. As well as increasing students' knowledge and competence.

RANCANGAN ALAT PEMOTONG BRIKET

Luqmanul Hakim — 2025-08-22

The development of a semi-automated cutting system for a charcoal briquette press aims to increase the effectiveness and efficiency of charcoal briquette production. Based on surveys and interviews with small-scale entrepreneurs who produce charcoal briquettes, it was found that manual cutting systems are still used, which can cause product failure and reduce the quality of charcoal briquettes. Therefore, we propose the design of a semi-automatic briket cutting machine to increase production and improve the quality of charcoal briquettes. The semi-automatic cutting system on the coconut husk charcoal briquette press uses a 12-volt wiper motor as the driving component. Next, the rotational energy will be transmitted by the tie road, which functions as a transmission. The limit switch acts as a switch that turns on and off the wiper motor and the briquette press. Our tests have proven that the semi-automatic cutting system on the charcoal briquette press can cut briquettes to the desired size. It is hoped that the design of this tool will help and improve the economy of small and medium-sized enterprises in the same field in Bangka Belitung.

PERANCANGAN ALAT PENGUPAS KULIT KELAPA DENGAN PENDEKATAN METODE VDI 2222

Ramdhany Ramdhany — 2025-08-22

People still peel the coconut fibre by hand using a machete and crowbar hammer, which requires a significant amount of effort, time, and sharp tools. This is why labour accidents are common. However, some people do use machines, but these machines are very expensive to buy. Therefore, a more energy- and cost-efficient coconut husk peeler was created. This tool is made from cheaper materials so that it is accessible to everyone can use it, especially those who run a company from home selling coconut milk. We used the VDI 2222 approach to make this tool. There are four steps: getting ideas, planning, designing, making components, assembling tools, testing tools and finishing. The results of testing this coconut peeler tool show that it is less energy, safer, and easier to lift the coconut fibre. One coconut can be peeled using this tool in about one minute. There are several aspects that are considered from this coconut peeler such as tool effectiveness, ergonomics, maintenance, affordability, development potential to increase the ease of use of this coconut peeler in the long term.

SISTEM PENGELOLAAN KEUANGAN KERTAS BERBASIS IOT PADA KOTAK AMAL MASJID

Priyandi Priyandi — 2025-08-22

The management of paper money in mosque donation boxes has been done manually, which can lead to delays in recording and the risk of discrepancies in the amount of money. To address this issue, an Internet of Things (IoT) based system has been designed that can automatically count, record, and monitor the incoming paper money in the donation box. This system aims to facilitate the mosque committee in managing incoming funds more efficiently, transparently, and accountably. This system uses several key components such as a paper money detection sensor, a microcontroller, a solenoid to control the mechanism for money entry, an LCD screen to display the nominal amount, and IoT connectivity for real-time data transmission. When money is inserted, the sensor will read the nominal amount, activate the solenoid to direct the money to the storage, and automatically record the transaction data. This information is then sent.

SISTEM KEAMANAN LOKER DENGAN FINGERPRINT DAN RFID BERBASIS WEBSITE

Egi Tri Saputra — 2025-08-22

A locker is a place used to store items such as clothes, books, documents, and others. Technological developments in security systems are also very necessary, especially in security systems for storing goods and documents in lockers. The security system on traditional lockers that are widely circulated today is still conventional, in the sense that the security of the locker door still uses a manual locking mechanism and there are many ways of hacking to open the locker easily, which is less safe and efficient. The results of this study indicate that the locker system with dual security is very effective for security in storing goods, with the existence of this system in addition to the owner who uses the locker can not open the locker by guessing like in lockers in general that are still conventional, with this system requires fingerprint identification (scan fingerprint) and wireless card (RFID) to open the safe.

IDENTIFIKASI DAN PERBAIKAN KERUSAKAN MESIN BUBUT HORIZONTAL GEMINIS NO. 19 MENGGUNAKAN METODE 5 WHY

Ariel Ariel — 2025-08-22

This study aims to identify the root cause of the failure of the No. 19 Horizontal Geminis Lathe at the Bangka Belitung State Polytechnic of Manufacturing and to recondition the machine to restore its functionality. The 5 Why method was used to analyze the electrical system failure, identifying that the damage to the manual circuit motor and diode was caused by a fragile and broken on/off lever due to lack of maintenance. After component replacement and repair, geometric testing showed that the machine met the established standards. The study concludes that the 5 Why method is effective in identifying root causes and that the repairs successfully restored machine performance. Recommendations are expected to improve the availability of lathes for student practicals and enhance understanding of systematic machine repair techniques.

PERAWATAN KOREKTIF DAN PREVENTIF ERETAN MESIN BUBUT AJ200E

Bagus Suadiatma — 2025-08-22

The AJ200E lathe machine is one of the practical tools used in the Mechanical Laboratory of the Bangka Belitung State Manufacturing Polytechnic. The carriage component of this machine suffered damage due to a lack of maintenance, such as rust and missing mechanical parts. This project aims to carry out corrective and preventive maintenance on the carriage, specifically focusing on the saddle, guideways, and cross slide, using methods such as observation, 5 Why analysis, repair implementation, and preventive maintenance planning. Test results show that the carriage has returned to normal function, although not perfectly, and an annual maintenance program has been developed to prevent similar damage.

RANCANGAN DAN SIMULASI MESIN PENCUCI JAHE UNTUK INDUSTRI HERBAL SKALA UMKM

Doni Ramdani — 2025-08-22

The demand for ginger as a herbal ingredient continues to rise, yet the cleaning process is still performed manually by small-scale industries (UMKM). This study aims to design an efficient and continuous ginger washing machine suitable for small-scale herbal industries. The design method follows the VDI 2222 systematic approach, consisting of planning, conceptualizing, designing, and completing stages. The machine uses an AC electric motor with a sprocket and v-belt transmission system, and has a maximum capacity of 10 kg per process. CAD simulations were employed to test the movement and efficiency of the design. The results show that the machine significantly accelerates the washing process and improves the cleanliness and quality of the ginger, offering an effective alternative to manual washing methods.

ROBOT PEMADAM API OTOMATIS BERBASIS SENSOR KAMERA DAN INTERNET OF THINGS (IoT)

Muhammad Akbar Zaliah Noviandi — 2025-08-22

Fires are disasters that can cause significant losses in both material and human life. To minimize the risk, this study designed and built a prototype of an automatic fire-extinguishing robot equipped with an ESP32-CAM camera sensor and Internet of Things (IoT) technology. The robot can detect fire using digital image processing, then autonomously moves to the fire source to extinguish it using a water pump guided by a servo motor. The system is also integrated with the Blynk application for real-time remote monitoring and control. Test results show that the system can detect and extinguish fires effectively in the designated area with high accuracy and fast response time.

Keywords: Extinguishing Robot, ESP32-CAM, IoT, Image Processing, Blynk

CORRECTIVE MAINTENANCE MESIN PRINT 3D COREXY

Reggie Alba Redo — 2025-08-22

This study discusses the corrective maintenance of a CoreXY-type 3D printer experiencing excessive vibration during the printing process. Excessive vibration negatively impacts print quality, resulting in uneven lines, rough surfaces, and reduced dimensional accuracy. The repair process involved identifying vibration sources and inspecting mechanical components such as belts, pulleys, stepper motors, and the machine frame. Corrective actions included adjusting belt tension, installing dampers on stepper motors, and reinforcing the frame structure. Post-maintenance vibration testing and print quality analysis were conducted. The results showed a significant reduction in vibration levels and improved print quality. This corrective maintenance highlights the importance of early intervention in vibration issues to maintain performance and reliability in 3D printing systems.

DESAIN MOLD LIFTING DEVICE DARI ATAS PADA MESIN WOOJIN TE170G5

Adyth Pryady — 2025-08-22

The redesign of the lifting system on the Woojin TE170G5 injection molding machine at Polman Babel was carried out to optimize the mold lifting process and improve space utilization efficiency around the machine. Based on field observations and interviews with operators, it was found that the previous lifting device could indeed be used to move molds, but it had a number of technical limitations. The device utilized a hydraulic system as a load-bearing mechanism, which was unable to support the mold's mass stably. As a result, the lower structure of the device deformed and came into direct contact with the floor. Additionally, the device's dimensions exceeded the size of the machine room's entrance door, causing accessibility issues within the limited space. In response to this, a new lifting device design was developed with an overhead operating system, utilizing a human-powered chain block mechanism as the primary drive. The device's dimensions were redesigned to align with the configuration and spatial constraints around the injection molding machine.

RANCANG BANGUN MESIN PENGADUK BUMBU PANTIAW SEBAGAI PENERAPAN TEKNOLOGI TEPAT GUNA

Irvan Hendriansyah — 2025-08-22

Sungailiat District, there is one of the UMKM, namely PIPIT PANTIAW, facing obstacles in the process of making spices that still use inefficient manual methods that require extra energy. The use of existing spice mixer machines is currently hampered by high costs with a price of 5-10 million rupiah per machine and the lack of effectiveness in stirring spices. This final project aims to design and build a Pantiaw spice mixer machine with a capacity of 15-20kg two hours that is economical, efficient, and uses the VDI 2222 design method which includes the planning, conceptualization, design, and completion stages. The results of this final project show that the Pantiaw spice mixer machine designed with a 0.5Hp electric motor and a 600mm stirrer dimension with a diameter of 600mm with a stirrer shaft length of 450mm is able to increase stirring efficiency, reduce labor requirements, and reduce operational costs significantly. The results of the trial of this machine are able to mix 1500-2000 grams of pantiaw seasoning in 120 minutes with 90% of the desired texture and taste of the seasoning. The implementation of this machine is expected to help MSMEs in Sungailiat District achieve food self-sufficiency and encourage economic growth in the home industry sector.

REKONDISI ALAT ANGKAT FORKLIFT LOGITRANS AA02

Agustin Agustin — 2025-08-22

Bangka Belitung State Manufacturing Polytechnic (Polman Babel) provides a mechanical laboratory as a facility for student practice, equipped with various machines and tools, including a forklift lifting device. We conducted an identification process and interviews with laboratory technicians (PLP) to inquire about damage to the machine. The forklift experienced electrical issues and a dead battery (ACCU), requiring repair and reconditioning. Subsequently, planning and repair actions were carried out to address the issues with the forklift. After the repair and reconditioning process, a lifting test was conducted. The test involved lifting a load with an adjusted weight, and based on the results, the forklift was successfully restored to a reliable working condition.

PREVENTIVE MAINTENANCE SISTEM PENDINGIN MESIN YANMAR 6AYM-WST

Alfathir Farera — 2025-08-22

Preventive maintenance is a method of maintaining machinery before damage occurs. The Yanmar 6AYM-WST engine serves as the driving force for the dredge pump on the Production Suction Vessel (KIP) at PT. Timah Tbk, which sometimes experiences overheating during operation due to an underperforming cooling system. This final project aims to design a preventive maintenance system for the engine’s cooling system. The methods used include observation, interviews, literature study, and data collection of past breakdowns. The outcome of this study includes an annual maintenance schedule, work specifications, control cards, and machine history cards that are structured and ready for implementation. With this approach, it is expected to reduce the frequency of cooling system failures, improve engine reliability, and achieve operational efficiency of the vessel.

MESIN PENGADUK PUPUK CAIR

Jekki Radiansyah — 2025-08-22

Currently, mixing liquid fertilizer is still done manually, using a stick or spoon. This method has several disadvantages, such as requiring a long time, a lot of energy, and cannot produce a uniform fertilizer concentration. In making this final project, the VDI 2222 design method became the method for working on this final project in order to obtain an appropriate and efficient design. From the design results obtained using this method, the liquid fertilizer mixer machine uses an electric motor as the drive on the machine. The stirring system uses a triangular plate as a stirring tool, and is equipped with a chopping knife at the bottom to crush solid waste such as animal waste and other organic materials. The trial results showed that the machine was able to mix liquid fertilizer evenly in a relatively short time of 5 minutes with 30 liters of material or liquid fertilizer being mixed. Thus, this machine can be an efficient and applicable solution in supporting liquid fertilizer production activities in the agricultural sector.

CORRECTIVE MAINTENANCE PADA MESIN FRAIS AJAX FR 15

Alif Bimo Suswanto — 2025-08-22

Milling machines play a crucial role in manufacturing processes, including in vocational education environments such as the State Manufacturing Polytechnic of Bangka Belitung. Over time and with frequent use, the Ajax FR 15 milling machine has begun to show signs of wear and malfunction, affecting its overall performance. This final project aims to identify the types of damage occurring on the machine, analyze their root causes, and carry out corrective maintenance actions to restore its functionality. Data collection was conducted through direct observation, interviews with technicians, and documentation of the machine's condition. The analysis revealed that the main issues were found in the spindle and worktable components, primarily caused by wear and a lack of regular maintenance. The corrective actions involved replacing damaged parts and readjusting critical components. Following the repair process, the machine was able to operate optimally and was ready to be used again for practical learning activities. The results of this project are expected to serve as a reference for better implementation of machine maintenance in the future.

INTEGRASI KONTROL PLC DAN MIKROKONTROLER PADA PENGGUNAAN PERALATAN ELEKTRONIKA SMARTHOME

Defri Roswanto — 2025-08-22

The advancement of automation technology has driven the transformation of conventional homes into smarthomes, which are equipped with automatic control systems for electronic appliances. In its implementation, an efficient, flexible, and reliable control system is required. This study discusses the integration of Programmable Logic Controllers (PLC) and microcontrollers in controlling smart home electronic devices, particularly in managing voltage, current, and electrical power. A smart home can transform our lives, making them smarter because it represents a symbol of automatic operation. Using a Programmable Logic Controller (PLC), the lighting load in the smart home prototype can also be controlled with push buttons, just like a typical home. This PLC uses a ladder diagram as its programming language. This research aims to design a smart home control system using a PLC and equipped with a laptop interface.

RANCANG BANGUN MESIN PENGUPAS KULIT KENTANG

Gerry Yohanes — 2025-08-22

The potato peeler machine was designed as a solution to overcome the problem of manual peeling, which requires considerable time and effort. The objective of this final project is to design a potato peeler with a capacity of 3 kg per 3 minutes and to develop a semi-automatic device to support work efficiency. The design method refers to the VDI 2222 approach, which consists of need analysis, concept development, calculation, prototype fabrication, and testing. The test results show that the machine is capable of peeling potatoes with a success rate of up to 80%. The machine operates stably and is safe to use on a small to medium scale. In conclusion, this potato peeler machine was successfully developed according to its objectives and is able to provide an applicable and efficient solution for small and medium enterprises.