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All Journal PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Bianome, Wofrid Erlista
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Agriculture, Biological Sciences & Forestry Automotive Engineering Economics, Econometrics & Finance Energy Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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Analisis Eksperimental Pengaruh Groundstrap terhadap Torsi dan Daya Mesin Sepeda Motor 4-Langkah To, Yonas; Priyono, Priyono; Bianome, Wofrid Erlista; Manesi, Damianus
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 2 (2025): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i2.222

Abstract

This study aims to analyze the effect of groundstrap installation on motorcycle torque and power. The ground strap, a copper wire coil wrapped around the ignition coil cable, functions to suppress stray frequencies, stabilizing the current flow to the spark plug for optimal combustion. The experiment involved three conditions: standard (no groundstrap), a 0.20 mm groundstrap, and a 0.18 mm groundstrap. Results showed improved performance with both groundstrap configurations. Maximum power increased from 9.16 HP (standard) to 9.30 HP (0.20 mm) and 9.33 HP (0.18 mm). Maximum torque rose from 9.76 N.m to 9.96 N.m (0.20 mm) and 10.09 N.m (0.18 mm). The most significant improvement was achieved with the 0.18 mm groundstrap, yielding an additional 0.17 HP at 7,336 RPM and 0.33 N · m at 6,000 RPM. These findings indicate that groundstrap installation positively affects ignition stability and combustion efficiency, offering a simple yet effective solution to enhance engine performance.
Pelatihan CAD/CAM bagi Guru Teknik Permesinan di SMK Negeri Kletek Kabupaten Malaka untuk Peningkatan Kompetensi Pemodelan dan Produksi Media Ajar: Training on CAD/CAM for Mechanical Engineering Teachers at SMK Negeri Kletek, Malaka Regency to Enhance Competence in Modeling and Teaching Media Production Fahrizal, Fahrizal; Manesi, Damianus; Mau, Sealtial; Priyono, Priyono; Bianome, Wofrid Erlista; Atok, Laurensius Kristo; Liu, Mikhael Dendy Robertus; Susanto, Yohanes Karoberd Yugi; Lengo, Edwinurius Berlinus; Mnune, Edwin Deriston
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 12 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i12.10771

Abstract

The rapid development of modern industry requires mastery of Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) as essential competencies for the technical workforce. However, in remote and border areas such as Malaka Regency, vocational school teachers, particularly in the field of mechanical engineering at SMK Negeri Kletek, still face limited facilities and minimal access to technology and up-to-date training. To address this issue, a community service program was conducted in the form of CAD/CAM training using Autodesk Inventor software on June 10–11, 2025, at the school's mechanical workshop. The method consisted of three stages: preparation, which included coordination and a needs assessment with the partner school; training, covering theoretical introduction, practical modeling, CAD–CAM integration, and simulation of part production; and evaluation, carried out through pre-tests and post-tests, observation of valuable skills, and participant feedback. The results indicated a significant improvement in teacher competence, with the average score increasing from 45 in the pre-test to 82 in the post-test. Moreover, teachers were able to produce digital models of machine components that can be utilized as teaching media in the classroom. This activity demonstrates that a practice-based and simulation-driven approach can effectively enhance teacher skills.
Co-Authors Atok, Laurensius Kristo Fahrizal Fahrizal Lengo, Edwinurius Berlinus Liu, Mikhael Dendy Robertus Manesi, Damianus Mau, Sealtial Mnune, Edwin Deriston Priyono Priyono Susanto, Yohanes Karoberd Yugi To, Yonas