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All Journal JURNAL SIMETRIK Jurnal Teknologi Terapan JURNAL POLI-TEKNOLOGI
Suharto Suharto
Politeknik Negeri Semarang
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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GRAFIR BATU ALAM DENGAN MESIN CNC ROUTER UNTUK MENINGKATKAN RAGAM PRODUK KREATIF INDONESIA Suharto Suharto; Kunto Purbono; Ahmad Supriyadi; Karnowahadi Karnowahadi
JURNAL SIMETRIK Vol 8, No 2 (2018)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (449.003 KB) | DOI: 10.31959/js.v8i2.208

Abstract

Pengembangan mesin Computer Numerical Controller (CNC) router khusus pembuatan kerajinan produk kreatif perlu didorong untuk meningkatkan ragam dan kualitas hasil di Indonesia. Grafir batu alam (marmer, granit) secara manual dengan mengandalkan ketrampilan orang dan peralatan sederhana akan menghasilkan produk dengan waktu lama. Kompetisi dalam dunia usaha dan industri diperlukan untuk meningkatkan efektifitas dan efisiensi dengan indikator waktu pembuatan singkat, harga murah, variasi disain lebih banyak dan menarik. Tujuan penelitian untuk menemukan parameter pemesinan yang efektif dan efisien, menganalisis faktor yang berpengaruh terhadap kekasaran permukaan, dan pengkayaan ragam disain  produk kreatif bahan batu marmer. Penelitian ini menggunakan pendekatan metode eksperimen yaitu penelitian untuk menemukan  pengaruh variabel putaran spindle, kecepatan pemakanan, kedalaman pemakanan terhadap kualitas kekasaran permukaan. Hasil penelitian menemukan parameter pemesinan kecepatan potong 30 (m/min), putaran spindle 12000 (rpm), kecepatan/laju pemakanan 2000 (mm/min). Analisis faktor yang berpengaruh terhadap kekasaran permukaan grafir marmer semakin tinggi   kecepatan/laju pemakanan, kedalaman pemakanan maka semakin tinggi pula nilai kekasaran permukaan batu marmer. Aplikasi komputer dan engineering software mampu meningkatkan ragam disain produk kreatif.
RANCANG BANGUN MESIN PENCUCI UMBI PORANG UNTUK MENINGKATKAN KINERJA PENGOLAHAN PORANG Suharto Suharto; Suryanto Suryanto; Sarana Sarana; Teguh Budi Santosa
Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (412.854 KB) | DOI: 10.31884/jtt.v4i2.148

Abstract

Porang  (Amorphophallus Oncophyllus) has long been known to the public, especially in the Magelang region. Porang contain very high glucomannan. Glucomannan is a water soluble fiber that is strong and low caloric hydrocolloid which is widely used food industry (noodle, tofu / konyaku, meatball, jely, artificial rice) and non food (cosmetics, capsules). Semarang State Polytechnic Hi-link Program in cooperation with the Magelang City Agriculture Office covers the cultivation, processing, and utilization of porang. Processing starts from tuber harvest, washed, chopped, dried, dipped. The washing process was initially done manually and simply with a brush and water spray so that the laundry was less clean and long-time. The purpose of this research is to design a porang bulb washer with motor gasoline drive to improve clean washing result and number of porang bulbs. The method used approach with of R & D (research & development) is to describe the current condition (exsiting), analyzing deficiencies, and improve performance for the better. Design stage starts from designing, manufacturing, and performance testing. The results obtained were porang washing machine driven by gasoline engine with power 10 HP, length dimension 1800 (mm), width 1200 (mm), and height 1200 (mm). The result of clean washing test with brush length 35 (cm), rotation of rotor 50 (rpm) and washing capacity of porang 1400 (kg / hour). The capacity of washing porang  1400 (kg / hour) is greater than washing manually, and the washing results are clean than more.
Prototipe Mesin CNC Diode Laser Cutting 5500 Miliwatt Untuk Pembuatan Produk Kreatif Bahan Akrilik suharto suharto
Jurnal Poli-Teknologi Vol. 19 No. 2 (2020)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v19i2.2713

Abstract

Advances in manufacturing technology in the creative industries began to leave the dominance of the role of humans into automated systems to produce high-quality products. CNC laser machine is a computer-programmed machine used to make a product by cutting, scraping, and engraving. In general, people think that CNC machines are expensive goods. The purpose of this study was to design a prototype diode type CNC laser machine for the manufacture of creative acrylic material products. The research method uses the stages of designing, manufacturing, and testing the performance of a diode type CNC laser machine. The CNC laser machine is designed as cheaply as possible by minimizing self-made components and using standard components such as machine frames using aluminum extrusion, laser using a 5500 mWatt laser diode type, stepper motor as an X, Y, and Z axis. Control software is used by USB CNC controller . CAD software is used by Aspire Vectric and CAM software is used GRBL with Adruino Nano microprocessors. The results of a  Diode Laser CNC machine prototype with dimensions of 450×400×300 (mm); work area dimensions 300×200×35; engine weight 5 (kg). The ability to cut a diode Laser of 5.5 watt CNC machine on black acrylic 3 (mm) with an average time of 0.5 mm/s is the best result. Diode Laser CNC Machine engraving capability of clear acrylic material with dark color paper cover machining time 10 (mm / s).
Co-Authors Ahmad Supriyadi Karnowahadi Karnowahadi Purbono, Kunto Sarana Sarana Suryanto Suryanto Teguh Budi Santosa