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Rondonuwu, Irvan
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Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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MODIFIKASI SISTEM ERETAN PADA EMCO COMPACT 5-PC CNC LATHE Pakasi, Christian Jacob; Lumintang, Romels; Rondonuwu, Irvan; Punuhsingon, Charles
Jurnal Poros Teknik Mesin UNSRAT Vol. 13 No. 1 (2024): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35793/jptmu.v13i1.57190

Abstract

The EMCO Compact 5-PC CNC Lathe engine made in Austria in the laboratory majoring in Mechanical Engineering, Sam Ratulangi University has not been operating due to the use and maintenance of machines that have been lasted for years so that they are not maintained and cannot be operated anymore. In order to be operated again, the machine needs to be repaired and modified. The purpose of this study is the modification of the eretan system in the EMCO Compact 5-PC CNC Lathe by adding a belt transmission system and calibrateing the motor stepper using a computer, so that a more precise product can be produced. Modification of the EMCO Compact 5-Pc CNC Lathe eretan system has been successful. The Modification Process of EMCO Compact 5-Pc CNC Lathe carried out is the replacement of old components with new components and assembling the grade system components based on the CAD image that has been created. Then the machine is connected to a computer/laptop to calibrate and adjust the speed of the stepper motor on the X axis, Y axis, and X axis through the GRBL Controller Software so that the resulting movements are the same as those programmed. Keywords: Modification, CNC Lathe, CAD, Calibration, Stepper Motor, GRBL, Arduino Microcontroller
PERANCANGAN STRUKTUR MENARA LATTICE UNTUK TURBIN ANGIN DARRIEUS TIPE-H DAYA KECIL Mongkol, Jericho; Tangkuman, Stenly; Rondonuwu, Irvan
Jurnal Poros Teknik Mesin UNSRAT Vol. 13 No. 1 (2024): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35793/jptmu.v13i1.57195

Abstract

The structure of the lattice tower is designed to be able to withstand the loads that occur, namely the wind force, and the gravity that occurs in the H-type Darrieus wind turbine. Structural calculations can be carried out by considering all the maximum forces affecting and then analyzing them for each part or structural component. The tower is designed with dimensions t x l x p, namely 2500 mm x 500 mm × 500 mm, 5 angle iron rods, the dimensions of the steel plate are 500 mm long × 500 mm wide × 3 mm thick, with ASTM A36 carbon steel as the material. The stress from the simulation outcomes must be equal to or below the allowable stress value where the allowable stress is 83.3 MPa, the von misses stress is 0.110526 MPa, and the results of the simulation show that the stress value fulfills the design requirements. Angle iron specifications yield with the requirements of ASTM A36 carbon steel with a yield strength (250 MPa). Calculation of checking the von misses stress. Keywords: Tower, Stress, Materials.
Co-Authors Frans Palobo Sappu Josua Simanjuntak, Josua Karangan, Reki Lumintang, Romels Mongkol, Jericho Pakasi, Christian Jacob Punuhsingon, Charles Sianturi, Yeremia Stenly Tangkuman Tuerah, Franklin Umboh, Markus Karamoy