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All Journal International Journal of Electrical and Computer Engineering Telematika JEEMECS (Journal of Electrical Engineering, Mechatronic and Computer Science)
Basuki Winarno
State Polytechnic of Madiun
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering

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Projectile velocity control on coilgun using genetic algorithms Basuki Winarno; Rakhmad Gusta Putra; Indarto Yuwono; Bambang Sumantri; Agus Indra Gunawan
International Journal of Electrical and Computer Engineering (IJECE) Vol 9, No 6: December 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (952.351 KB)

Abstract

Multistage Coilgun is an electromagnetic coil composed of more than one coil so that can throw a projectile. The velocity of the projectile coming out of the tube must be controlled. The mechanism can be done by a multistage coilgun design that has a varying number of turns. Each coil that coincides with one another is wrapped separately. The motion of projectile following the velocity profile is perfomed by designing a multistage coil in different layer number based on the energy needed, and therefore the coil is more efficient. Furthermore, the velocity of the projectile is controlled by controlling the current injected to the coil using the Genetic Algorithm method. A prototype of a multistage coilgun system with the proposed coil variation is built in this work. The test is carried out 7 times with an average final velocity of the projectile of 29,89 m/s. While the results of the numerical simulation are 32,63 m/s. Testing error compared to simulation is 9,15%.
PORTABLE WIND TURBINES USES BLADE TYPE INVERSE TAPER Dwi Lestariningtiyas; Basuki Winarno; Yuli Prasetyo
JEEMECS (Journal of Electrical Engineering, Mechatronic and Computer Science) Vol 2, No 2 (2019): August 2019
Publisher : Merdeka Malang University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (270.034 KB) | DOI: 10.26905/jeemecs.v2i2.3162

Abstract

The electrical energy is greatly needed in human’s life and even in the primary life of Indonesian. One of the renewable electrical energy resources is the wind energy which can be obtained by constructing a Wind Power Plant (PLTB, Pembangkit Listrik Tenaga Bayu). PLTB works by conversing the wind energy into electrical energy. PLTB that has been applied in Indonesia is using a permanent system with various kinds of blades. In this study, the Portable Wind Turbine is designed by using the inversed taper type blade. The Portable Wind Turbine consists of the inverse taper type wind turbine, DC dynamo, control circuit, and battery. The design begins with creating a simulation to design the turbine and control circuit. The turbine design uses Qblade and SolidWorks software for students, while the control circuit uses free version of Proteus software. The design result is a prototype which possesses a blade with 15cm and 8cm radius. The prototype testing is carried out by comparing two types of blade using various speed of artificial wind. The blade with 15cm length indicates a better result compared to the blade with 8cm. It produces a maximum voltage with the wind speed of 7m/s with 4,35volt and the current of 1,3 ampere.DOI : https://doi.org/10.26905/jeemecs.v2i2.3162
USB Breakout-Controlled Modular CNC System for Affordable Smart Manufacturing Solutions Budi Artono; Basuki Winarno; Hendrik Kusbandono; Frian Adi Anata; Shashi Kant Gupta
Telematika Vol 19, No 1: February (2026)
Publisher : Universitas Amikom Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35671/telematika.v19i1.3198

Abstract

The primary objective of this study is to design, develop, and experimentally validate a low-cost modular CNC system controlled via a USB Breakout Controller as an affordable machining solution for small-scale wood manufacturing. The research employed an experimental approach involving the fabrication of an 18 mm plywood test specimen under three feed-rate settings (40%, 50%, and 70%) to evaluate dimensional accuracy, machining time, and surface quality. The CNC prototype was constructed using stepper-driven linear axes, a 500 W spindle, and Mach3-based motion control. Validation procedures included repeated measurements of machined features using a ruler, surface quality inspection, and comparison of actual versus nominal dimensions. The results demonstrate that the system achieved dimensional deviations between 0.32 mm and 0.58 mm across trials, with the optimal performance observed at a 50% feed rate, which produced the lowest mean error (0.32 mm), smoothest surface finish, and efficient machining time (54 seconds). These quantitative findings confirm that the proposed system delivers machining accuracy comparable to entry-level commercial CNC routers while significantly reducing system complexity and cost. The study’s novelty lies in demonstrating the effectiveness of a USB-based modular controller architecture for precision wood machining—an area where low-cost systems typically suffer from poor stability and inconsistent performance. This research concludes that the developed CNC system is technically viable, repeatable, and suitable for vocational education and small-to-medium wood fabrication industries requiring affordable digital manufacturing solutions.
Co-Authors Agus Indra Gunawan Bambang Sumantri Budi Artono Dwi Lestariningtiyas Frian Adi Anata Hendrik Kusbandono Indarto Yuwono Rakhmad Gusta Putra Shashi Kant Gupta Yuli Prasetyo