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Recycled PET Plastics Filament: Characteristic and Cost Opportunity Putra, Ikbal Rizki; Bukhori, Muhammad Luqman; Prasetiyo, Angger Bagus; Robbika, Fadzkurisma; Putra, Brian Teo
Semesta Teknika Vol. 27 No. 2 (2024): NOVEMBER
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i2.21072

Abstract

Piyungan Integrated Waste Disposal Site (TPST) is a waste disposal site in Yogyakarta province. With an estimated increase in the amount of waste of 8% per year, it is estimated that the TPST will not be able to accommodate waste from the community. One of these wastes is PET bottle. This research aims to develop a new recycling method by converting PET plastic waste into 3D Printer machine filament and investigate the opportunity of this PET filament. This research uses several stage methods: PET filament making, Tensile test, macroscopy photography and opportunity analysis. This study concludes that PET bottle waste can be used as 3D printer filament with a diameter of 1.7 mm. Processing PET bottle waste into 3D printer machine filament can increase the economic value of PET bottle waste. And this can contribute to the potential for processing plastic bottle waste.
PERBANDINGAN METODE MANUFAKTUR PROPELLER CLARK Y: 3D PRINTING DAN SILICONE MOLDING Putra, Ikbal Rizki; Mahesa, Ll. Aghyl Anugerah; Sehono; Marausna, Gaguk; Dyaksa, Gilang Argya; Prabowo, Fajar Yulianto; Putra, Brian Teo
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 2 (2025): SJME Kinematika Desember 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i2.713

Abstract

Currently, the aviation industry is experiencing rapid growth, not only in manned aircraft but also in the development of Unmanned Aerial Vehicles (UAVs). One of the crucial components in UAVs is the propeller. Common manufacturing methods for propellers include forming, hand lay-up, and vacuum bagging. Alternative methods with promising potential include silicone molding and three-dimensional (3D) printing. This study aims to determine the most suitable manufacturing method for producing a propeller with a Clark Y airfoil type. The research was conducted using simulation, geometric analysis, and visual analysis. The silicone molding method can serve as an alternative to injection molding, as the dimensional difference between the CAD design and the final product is relatively minor, with the maximum shrinkage recorded at -8.77%. Meanwhile, the 3D printing method is more appropriate when the airfoil thickness is greater.
OPTIMALISASI MANAJEMEN DAN PROSES HYBRID TANI-TERNAK DI KWT DAWIS41 Putra, Ikbal Rizki; Irmawa, Erwhin; Dyaksa, Gilang Argya; Prabowo, Fajar Yulianto; Putra, Brian Teo; Fernanda, Reza Dwi; Dermawan, Muhammad Deant Adzany; Sehono, Sehono
Jurnal Abdi Insani Vol 12 No 11 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i11.3200

Abstract

The Dawis41 Women's Farmers Group (KWT) in Argorejo is a forum for women to improve the village economy through goat and muscovy duck farming activities. This group faces three priority problems: the lack of alternative electricity sources for barn lighting, the lack of an independent livestock feed management system, and the lack of processing of livestock waste into compost. The purpose of this community service activity is to increase production and the implementation of management and alternative energy in KWT Dawis41. This activity is carried out through five systematic methods that include program socialization, training, technology application, mentoring and evaluation, and program sustainability. The Appropriate Technology (TTG) implemented is one solar panel unit, one feed chopper unit, and one compost mixer unit. This program successfully resolved the problems faced by partners in the areas of production and management. The implementation of TTG has succeeded in increasing the level of community empowerment with a breakdown of 100% for the Solar Panel TTG, 58% for the Animal Feed Chopper TTG, and 45% for the Compost Mixer TTG. The training also yielded positive results, with 61% of the 23 participants responding with a good understanding of TTG use and waste management. The community partnership program successfully resolved partner issues through effective TTG implementation, improving business efficiency and group empowerment.