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All Journal Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Mekanika: Majalah Ilmiah Mekanika G-Tech : Jurnal Teknologi Terapan MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering JURNAL FLYWHEEL Jurnal Pengabdian kepada Masyarakat Nusantara Logic : Jurnal Rancang Bangun Dan Teknologi
Nicky Suwandhy Widhi Supriyanto
Politeknik Negeri Malang
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences

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Journal : G-Tech : Jurnal Teknologi Terapan

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Design and Manufacture of Speedometer Covers using the House of Quality (HOQ) Approach Faizal, Elka; Sari, Nurlia Pramita; Wicaksono, Hangga; Pranoto, Bayu; Supriyanto, Nicky Suwandhy Widhi; Subagiyo, Subagiyo
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7119

Abstract

This study aims to design and fabricate a speedometer cover for Yamaha Aerox and N-Max 155 motorcycles using 3D printing technology, guided by the House of Quality (HOQ) framework. The increasing consumer demand for motorcycle accessories motivated this research. A structured design process was implemented, beginning with a consumer needs analysis conducted through questionnaires and surveys to identify user expectations. These needs were systematically translated into technical requirements using the HOQ method. The design stage utilized 3D CAD modeling and 3D scanning to ensure accurate fitting to the speedometer unit, followed by prototyping using fused deposition modeling (FDM) 3D printing. The final prototype exhibited key consumer-desired attributes such as heat resistance, structural durability, and a secure fit. Results indicate that integrating the HOQ approach with digital fabrication methods effectively aligns product design with user expectations. This study demonstrates the potential for further development of customizable motorcycle accessories using a consumer-driven and technology-supported design process.
Experimental Investigation of Air-to-Kapok Oil Ratio Effects on Flame Height and Morphology in a Bunsen Burner Pranoto, Bayu; Supriyanto, Nicky Suwandhy Widhi; Gunawan, Chandra; Aji, Supa Kusuma; Huda, Muhammad Arif Nur
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7120

Abstract

The growing global demand for energy highlights the limitations of fossil fuel resources. This makes innovation in alternative energy development crucial, and one promising avenue is the use of vegetable oils like kapok oil. Kapok oil has a complex chemical composition, composed of various triglycerides of fatty acids and glycerol, where each fatty acid component contributes unique combustion characteristics. The interaction of the complexity of this content as a whole affects the flame pattern of kapok oil. Furthermore, the air-fuel mixture ratio (AFR) plays a significant role in determining the characteristics of the resulting flame. Therefore, this study aims to explore in depth the effect of AFR variations on the combustion characteristics of kapok oil. Experiments were conducted by burning a mixture of kapok oil vapor and air on a burner with controlled AFR settings. The results showed that the variation of AFR significantly changed the flame height and morphology. Flame height initially increased with increasing AFR (from 1.34 cm at AFR 0.143:1 to 4.429 cm at AFR 1.526:1) before decreasing (to 0.264 cm at AFR 4.011:1) until it reached the lift-off condition and went out.
Co-Authors Aji, Supa Kusuma AM Mufarrih Bayu Pranoto Chandra Gunawan Ekasari, Silvia Rahmi Faizal, Elka Gunawan, Chandra Hangga Wicaksono Harijono, Agus Hariyanto, Moh.Nasir I Komang Astana Widi Imam Mashudi, Imam Maulidina, Ahsani Muhammad Arif Nur Huda Muhammad Fakhruddin Nadhifatul Aini, Fica Aida Perkasa, Rilis Eka Pramita Sari, Nurlia Pranoto, Bayu Putra, Dicky Riyanto Rizki Priya Pratama, Rizki Priya Sari, Nurlia Pramita Subagiyo Subagiyo Weddakarti, Eva Wicaksono, Hangga