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Reverse Engineering Design Of Ceiling Lamp Changer To Increase Product Value By Using Dfma Methode Bayu Pranoto; Eva Weddakarti; Rilis Eka Perkasa; Silvia Rahmi Ekasari; Nicky Suwandhy Widhi Supriyanto
Jurnal Syntax Transformation Vol 6 No 6 (2025): Jurnal Syntax Transformation
Publisher : CV. Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/jst.v6i6.1083

Abstract

The prevalent manual method of replacing ceiling lamps, which often involves climbing on unstable furniture, poses significant safety risks, including potential falls, electrocution, and other severe injuries. This common practice underscores an urgent need for safer and more efficient lamp maintenance solutions in both domestic and commercial settings. This research aims to mitigate these inherent dangers by developing and upgrading conventional ceiling lamp changers into a semi-automatic system. The primary objectives are to enhance the safety, speed, and overall ease of the lamp replacement process, thereby effectively minimizing the risk of user injury. The proposed methodology involves designing a semi-automatic ceiling lamp changer by integrating a control switch mechanism that enables remote rotation of the lamp holder. This innovative approach will facilitate the safe removal and installation of lamps without direct manual contact or the necessity of climbing. Concurrently, comprehensive product cost planning and market-driven pricing strategies will be conducted to ensure the device’s affordability and widespread community acceptance. The successful development of this semi-automatic ceiling lamp changer is anticipated to provide a significantly safer, faster, and more convenient alternative for lamp replacement. This remote-operated design is expected to substantially reduce injury incidents associated with current manual methods. By ensuring affordability and market compatibility, this innovation aims to achieve broad community adoption, ultimately contributing to safer environments for lamp maintenance.    
Design and Manufacture of Speedometer Covers using the House of Quality (HOQ) Approach Elka Faizal; Nurlia Pramita Sari; Hangga Wicaksono; Bayu Pranoto; Nicky Suwandhy Widhi Supriyanto; 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 Bayu Pranoto; Nicky Suwandhy Widhi Supriyanto; Chandra Gunawan; Supa Kusuma Aji; Muhammad Arif Nur Huda
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.