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All Journal Bulletin of Community Engagement MACHINERY: Jurnal Teknologi Terapan
Sairul Effendi
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Religion Arts Humanities Control & Systems Engineering Education Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Wita, Wantri Kasma PENGARUH SUHU DAN KECEPATAN MOTOR MESIN PULTRUSION TERHADAP DIAMETER FILAMEN 3D PRINTING Kasma Wita, Wantri; Irawan Malik; Sairul Effendi
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12736097

Abstract

3D printing technology enables the creation of 3D objects from 3D CAD designs using various types of thermoplastic materials, such as PLA, ABS, PET/-G, TPU, PP, and Nylon. Among these materials, PET stands out as an ideal choice for 3D printing applications due to its advantages, namely clarity and strength. The process of producing 3D objects involves the use of filaments that can be generated through either extrusion or pultrusion methods. While the pultrusion method with Arduino Uno control settings shows promise, further research is required to enhance the quality of the produced filaments. In this study, the filament production process involves process parameters, including temperatures of 140°C, 145°C, 150°C, and motor speeds of 75 rpm, 80 rpm, 85 rpm, and 90 rpm. Based on the research findings, the smallest filament diameter was observed at a temperature of 150°C and a motor speed of 90 rpm. Conversely, the largest filament diameter was found at a temperature of 140°C and a motor speed of 75 rpm with a nozzle diameter of 1.75 mm. The highest filament quality was achieved using a nozzle diameter of 1.6 mm, resulting in an average filament diameter of 1.75 mm. Through non-linear regression analysis, it can be concluded that each process parameter has a simultaneous impact on the filament diameter. The results of this study provide insights into optimizing process parameters in the pultrusion method to produce high-quality filaments in 3D printing technology.
Unjuk Kerja Desain Prototype Penepat Las dan Bor Bermagnet Berdasarkan Analisis Ergonomi dengan Metode Quick Exposure Checklist Piyata Wira Yonatan Sitohang; Irawan Malik; Sairul Effendi
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12738743

Abstract

This study aims to develop a prototype design for an ergonomic welding and drilling clamping tool and evaluate its performance by analyzing relevant ergonomic aspects using the Quick Exposure Checklist method. The data utilized encompasses primary data obtained through observations, literature reviews, questionnaires, and field studies. The findings of this research indicate that the resulting prototype design for the welding and drilling clamping tool exhibits a good level of ergonomics, with the ergonomic evaluation test results reaching 37%. This value is slightly below the recommended action limit of 40%, indicating that the tool meets the safe ergonomic criteria based on the Quick Exposure Checklist method.
Pengujian Operasional untuk Mengetahui Potensi Kerusakan pada Indikator Mesin Laser Cuting Engraving Dioda 15 Watt Wulandari; Sairul Effendi; Almadora Anwar Sani
Bulletin of Community Engagement Vol. 4 No. 3 (2024): Bulletin of Community Engagement
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bce.v4i3.1711

Abstract

This study aims to analyze the potential damage that occurs in the laser cutting engraving machine indicator using a 15 watt diode. The data analysis method in this study adopts a quantitative approach with an experimental design, focusing on a laser cutting engraving machine using a 15 watt diode. Operational testing was carried out through a series of simulations and direct trials on the machine to identify possible damage points and the factors that influence them. By utilizing the real-time performance monitoring method, this study successfully identified several potential damages that were directly related to the stability of the electric current and the duration of use of the machine. These findings are expected to be a reference in improving the reliability of laser cutting engraving machines, as well as reducing the risk of future damage through improving operational procedures and machine maintenance.
OPTIMALISASI NILAI AKURASI PEMOTONGAN AKRILIK BERWARNA MENGGUNAKAN CNC LASER CUTTING DIODA 15 WATT Ramadhan, A.; Sairul Effendi; Almadora Anwar Sani
MACHINERY Jurnal Teknologi Terapan Vol. 6 No. 1 (2025): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.15234349

Abstract

In this study, a 15 watt diode laser cutting was used to cut black acrylic material with a thickness of 2 mm. In cutting black acrylic, cutting parameters are required to obtain optimal cutting results, so to obtain optimal parameters, a quantitative method is used with the Larger Is Better characteristic taguchi method approach. There are 3 factors used for cutting parameters, namely laser power (%), cutting speed (mm / min) and nozzle distance (mm). The nozzle distance is a factor that has a significant effect on the results of cutting acrylic with P-Value = 0.000. The optimal cutting parameters for 2 mm acrylic thickness are laser power: 95%, cutting speed: 10 mm / min and nozzle distance: 50 mm with a cutting accuracy of 98.20%.  
Co-Authors Almadora Anwar Sani Irawan Malik Kasma Wita, Wantri Piyata Wira Yonatan Sitohang Ramadhan, A. WULANDARI