PERANCANGAN MESIN PENCETAK LAKSA SISTEM PRESSING SCREW MENGGUNAKAN METODE DESAIN REKAYASA BERBANTUAN SOLIDWORKS

Abstract

Laksa survey results indicate that the printing process within Small and Medium Enterprises (SMEs) is still largely performed manually using traditional levers. This conventional method requires significant time and physical labor while producing fewer uniform strands. This study is the initial part of a comprehensive design and construction project for a 1 kg/3 minutes capacity laksa printing machine. Based on the operating parameters, the screw shaft is designed to rotate at a constant low speed of 120 RPM driven by a 0.5 HP electric motor. The structural framework implements an 8-stage Engineering Design Process (EDP). Concept evaluation was conducted via a quantitative weighting matrix based on technical and economic criteria. The evaluation results selected Alternative Concept 1 (Ak 1) as the optimal design with the highest score of 4.30. The selected concept integrates a hollow steel structure frame, a pulley and V-belt transmission system, a fixed hopper, and a continuous variable pitch screw press mechanism. The output of this research yields a blueprint capable of extruding laksa strands with a diameter of Ø3 mm and projecting a total production capacity of up to 20 kg per hour.