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All Journal Rekayasa Mesin Jurnal Abdi Masyarakat Indonesia International Journal of Innovation in Mechanical Engineering and Advanced Materials Jurnal Pengabdian Masyarakat Nian Tana Blueprint Journal
Wangge, Gusti F.X. Wara
Politeknik Cristo Re, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health

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Journal : Blueprint Journal

 1 
Inovasi Mesin Peluruh Biji Jagung sebagai Teknologi Tepat Guna Pascapanen di Desa Watugong untuk Mendukung Pertanian Berkelanjutan Servianus, Yohanes; Baha, Abraham D.; Leta, Emanuel; F. X Wara Wangge, Gusti; Pereira Maia Pinto, Gaspar
Blueprint Journal Vol 1 No 2 (2025): Agustus: Blueprint Journal
Publisher : PT Yupin Felicitas Utama

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Watugong Village, located in Alok Timur District, Sikka Regency, is a traditional agricultural area where maize serves as both a staple crop and an integral part of local cultural heritage. However, post-harvest processing—particularly the shelling of maize kernels from the cob—is still conducted manually, leading to inefficiency and reduced grain quality. Attempts at mechanization through modern machines have often proven unsuitable due to their high cost, complexity, and incompatibility with the needs of small-scale farmers. To address this issue, the Mechanical Engineering Department of Politeknik Cristo Re developed a 20 kg-capacity maize shelling machine that is ergonomic, affordable, and easy to operate. Powered by a 0.75 kW electric motor, the machine employs a transmission system comprising pulleys, V-belts, and a silent chain, enabling it to increase shelling efficiency by more than 4.5 times compared to manual methods. Performance tests show a shelling capacity of up to 400 kg/hour with minimal kernel damage. The novelty of this machine lies in its participatory design approach and use of locally available materials and components. This innovation serves as a tangible example of appropriate technology grounded in local wisdom, supporting improved productivity, farmer self-reliance, and sustainable food security in rural communities. 
PENGARUH  PENGGUNAAN TIGA MEREK OLI TERHADAP TEMPERATUR MESIN DAN KONSUMSI BAHAN BAKAR PADA MOTOR HONDA PGM-FI REVO FIT 110 CC Wara Wangge, Gusti F. X; Viva Servianus, Yohanes; Pereira Maia Pinto, Gaspar; Rompi, Rofinus
Blueprint Journal Vol 1 No 3 (2025): October: Blueprint Journal
Publisher : PT Yupin Felicitas Utama

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This research analyzes the effect of three oil brands, namely MPX1, Federal Ultratec, and Enduro 4T on engine operating temperature and fuel consumption on the Honda Revo Fit 110 cc PGM-FI motorbike. The test was carried out at an engine speed of 17,000 rpm for 30 minutes using Pertalite fuel. The parameters observed include engine temperature and remaining fuel volume. The results show that the type of oil influences thermal performance and fuel efficiency. MPX1 oil produces the highest temperature of 111°C with the most economical fuel consumption (968 ml remaining). The Federal Ultratec showed a temperature of 109°C with 900 ml remaining, while the Enduro 4T had a low of 107°C with 880 ml remaining. MPX1 with the semi-synthetic SAE 10W-30 formulation has better viscosity stability than the other two mineral oils, so it is able to maintain combustion efficiency and engine performance. Overall, the MPX1 provides the most optimal performance, the Federal Ultratec excels in engine protection at high loads, and the Enduro 4T is better in lowering operating temperatures. Choosing oil that matches engine specifications is an important factor in maintaining fuel efficiency and engine durability.
ANALISIS PENGARUH PENERAPAN PRINSIP ERGONOMI PADA MOTOR CHOPPER DARI STANG HINGGA JOK: ANALYSIS OF THE EFFECT OF ERGONOMICS PRINCIPLE APPLICATION ON CHOPPER MOTORCYCLES FROM HANDLEBARS TO SEAT wara, gusti; F.X.Wara Wangge, Gusti; Rande, Thadeus; Yosep Boli Odung, Bernadus
Blueprint Journal Vol 2 No 1 (2026): Februari : Blueprint Journal
Publisher : PT Yupin Felicitas Utama

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This study evaluated the suitability of chopper motorcycle designs to the anthropometrics of 40 male users aged 20–25 at Cristo Re Polytechnic. Measurements of five body parameters showed high variation in size, and all variables were found to be non-normally distributed based on the Shapiro–Wilk test (p < 0.05). Ergonomic analysis revealed that several motorcycle dimensions did not match the body characteristics of the majority of users. The 110 cm handlebar height was 15 cm below the actual hand reach height (125 cm), causing shoulder elevation and increasing static load. The 70 cm handlebar-seat distance also exceeded the ideal reach (62 cm), forcing the rider to lean forward, increasing shoulder and back muscle tension. Furthermore, the footrest, positioned far forward, overextended the legs and increased pressure on the hips and lower back. These findings indicate an increased risk of fatigue and musculoskeletal disorders. Design recommendations include raising the handlebars to 130–135 cm, reducing the handlebar-seat distance to approximately 62 cm, and lowering the footrest by 5–10 cm with an increase of approximately 3 cm in height to achieve a more ergonomic riding posture. 
Co-Authors Arifin Sanusi Baha, Abraham D. Desiderius Siga Meli Poa Leta, Emanuel Migo, Yakobus Donnisius Muhamad Jafri Pereira Maia Pinto, Gaspar Rande, Thadeus Raning, Xaverius Moa Rikardus Dole Rompi, Rofinus Romualdus Paulus Sogen Sanusi, Arifin Servianus, Yohanes Viva wara, gusti Yosep Boli Odung, Bernadus