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All Journal Tibuana : Journal of Applied Industrial Engineering Community Empowerment
Ulhaq, Naswa Sabila
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Effect of 3D Printing Parameters on Dimensional Accuracy Using the Taguchi and Response Surface Methodology (RSM) Ulhaq, Naswa Sabila; Islahudin, Nur
Tibuana Vol 8 No 2 (2025): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.8.2.10552

Abstract

Advances in technology in the manufacturing industry have driven the use of 3D printing as a fast and efficient prototyping solution. This study aims to optimize the process parameters of FDM 3D printing using PLA+ material with ASTM D-638-04 type specimens. The process parameters tested include printing speed, nozzle temperature, layer thickness, infill rate, and bed temperature, each at three levels. Optimization was performed using the Taguchi method and Response Surface Methodology (RSM), with a focus on dimensional accuracy (length, width, and thickness) as the primary response. The optimal parameters obtained from the Taguchi method are printing speed of 45 mm/s, nozzle temperature of 240°C, layer thickness of 0.30 mm, infill rate of 100%, and bed temperature of 55°C. Meanwhile, the RSM method yielded the following optimal parameters printing speed of 50 mm/s, nozzle temperature of 240°C, layer thickness of 0.30 mm, infill rate of 100%, and bed temperature of 60.65°C
Nutmeg peeling technology to enhance productivity and product quality at UD Anugerah Jaya Mandiri Ungaran Islahudin, Nur; Nugroho, Dony Satriyo; Arifin, Zaenal; Ulhaq, Naswa Sabila; Cahyani, Anggita Dwi
Community Empowerment Vol. 11 No. 3 (2026)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.16051

Abstract

Nutmeg (Myristica fragrans Houtt) is a primary spice commodity in Semarang Regency, Central Java, offering substantial potential for derivative products such as essential oils. However, small-and-medium-sized agro-industrial enterprises like UD Anugerah Jaya Mandiri face significant production bottlenecks due to manual seed shelling, which is labor-intensive, time-consuming, and risks compromising seed quality. To address these operational constraints, this community service partnership implemented an automated nutmeg shelling machine utilizing an integrated counter-rotating blades mechanism. The intervention followed a structured framework comprising machine design, technology deployment, operational training, production assistance, and marketing strategy support. Results demonstrate a 49% increase in daily production capacity, rising from 450 kg to 670 kg. The automated system significantly optimized operational efficiency, achieving a cycle time of 5 minutes per 7 kg while maintaining consistent seed quality. Ultimately, this appropriate technology adoption successfully resolves primary post-harvest bottlenecks, boosting business competitiveness and accelerating the commercialization of value-added nutmeg derivatives.
Co-Authors Cahyani, Anggita Dwi Nugroho, Dony Satriyo Zaenal Arifin