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All Journal Media Teknik Sipil Rotasi Jurnal Teknik Mesin dan Mekatronika (Journal of Mechanical Engineering and Mechatronics) Jurnal Teknik Mesin Indonesia Journal of Industrial Engineering Agro Bali: Agricultural Journal Applied Research and Smart Technology (ARSTech) METAL : Jurnal Sistem Mekanik dan Termal Majalah Teknik Mesin
Sutisna, Nanang Ali
Universitas Presiden
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Journal : Rotasi

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Analisa Awal Kekasaran Permukaan Hasil Produksi Mesin Cetak Tiga Dimensi Terhadap Pengaruh Variasi Grit Size Sand Paper Hakim, Rahman; Sutisna, Nanang Ali
ROTASI Vol 21, No 3 (2019): VOLUME 21, NOMOR 3, JULI 2019
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (459.136 KB) | DOI: 10.14710/rotasi.21.3.134-139

Abstract

Hasil produksi cetak tiga dimensi tipe FDM (Fused Deposition Modeling) dengan menggunakan material PLA (Polylactid Acid) yang tergolong material polymer pada umumnya mempunyai permukaan yang kasar sehingga memerlukan pekerjaan akhir untuk membuat permukaanya lebih halus lagi. Tujuan percobaan ini ialah untuk mengetahui ukuran Grit Size mana saja yang bisa menghasilkan nilai kekasaran permukaan yang paling rendah atau dengan kata lain mempunyai nilai kehalusan permukaan yang paling tinggi. Salah satu caranya ialah dengan menggunakan kertas gosok dengan variasi tingkat Grit Size yang biasa ditampilkan pada kode angka pada label kertas gosok. Pada percobaan kali ini, kami menggunakan Grit Size dengan ukuran 1000CW, 1200CW dan 1500CW. Parameter uji pada mesin cetak tiga dimensi dengan merek Leapfrog Creatr HS ini menggunakan PLA berdiameter 1.75mm, dengan temperatur Nozzle dan Base Plate sebesar 230oC dan 30oC, serta mempunyai feedrate dan infill density masing-masing sebesar 70%. Setelah dilakukan percobaan sebanyak tiga kali pengambilan data, kami dapatkan hasil yang dimana dengan menggunakan sand paper dengan grit size 1500CW mempunyai nilai kekasaran permukaan (Ra) yang paling rendah, yaitu sebesar 4,392 μm (N8).
Design and Prototyping of Mini AGV with Arduino Microcontroller Sutisna, Nanang Ali; Farrand, Michael Quinn
ROTASI Vol 22, No 2 (2020): VOLUME 22, NOMOR 2, APRIL 2020
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.22.2.119-126

Abstract

This paper presents the design and prototype of a Mini Automated Guided Vehicle (AGV) using a microcontroller. The mini AGV system is based on an autonomous forklift. The purpose of the AGV prototype is to move objects from one place to another and continuously. To run, AGV uses the Line Follower method by using four obstacle detection sensors or infrared transmitters and receivers. Furthermore, when all sensors are active, AGV will stop when there are objects with RFID tags outside. The RFID reader which is placed in front of the AGV activates a stepper motor which will move the object's fork. Then AGV sends the object to a predetermined place. Most components use compatible Arduino modules, except for the chassis and some parts use components made of acrylic or printed in 3D.
Perhitungan Konveyor Sabuk Untuk Mengangkut Material Sandblasting Sebagai Pengganti Konveyor Ulir Sutisna, Nanang Ali
ROTASI Vol 23, No 2 (2021): VOLUME 23, NOMOR 2, APRIL 2021
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.23.2.%p

Abstract

Makalah ini memaparkan perancangan konveyor sabuk untuk mengangkut pasir besi sebagai material utama sandblasting di ruang sandblasting. Konveyor sabuk dirancang untuk menggantikan konveyor ulir eksisting yang sering berhenti beroperasi karena perbaikan bantalan yang rusak akibat penyisipan pasir besi ke dalam bearing. Selain itu, kapasitas angkut konveyor ulir dinilai tidak efisien karena sebagian pasir besi tidak terangkut karena tertinggal di celah antara screw dan pelat penutup. Berdasarkan pemeriksaan terhadap permasalahan yang ada maka disarankan dilakukan penggantian dengan konveyor sabuk dan dilakukan perhitungan untuk menentukan spesifikasinya sesuai dengan data konveyor yang sekarang dipakai. Hasilnya, konveyor sabuk dapat dirancang dengan kapasitas 236.81 ton per jam dan akan memiliki lebih sedikit kerusakan karena tidak akan ada kerusakan bearing seperti yang terjadi pada konveyor ulir..
Development of Robotic Arm Controller Using Arduino Microcontroller and Mobile Device Application Nanang Ali Sutisna; Muhammad Irfan Satria
ROTASI Vol 24, No 2 (2022): VOLUME 24, NOMOR 2, APRIL 2022
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.24.2.76-86

Abstract

In today's world, automation is widely used in many aspects to help humans do their job and increase the efficiency of the job. The robot is one of the kinds of an automation system that mostly used to help human to completed their job. Robots have many roles in human life, and robots are used to help humans do various kinds of jobs more easily. Robots are widely used because they can make it easier and done the work effectively and efficiently. There are many implementations of the robot to help humans do their jobs, such as welding robot, agriculture robot, drone robot, and many more. A robot arm is one type of robot that we often encounter, and a robot arm has a function similar to a human arm. In its application, the robot can be controlled through several methods, some are directly using a cable connection, and some are using a wireless method. Also, to control a robot, a controller is needed, which will be the robot's brain. This project aims to develop a controller based on Arduino, one of the most widely used microcontroller boards for education, hobby, or professional, and develop a mobile device application to control the robot arm via Bluetooth connection. The methodology used in this research is starting from the identification and data collection of the program from several sources such as a journal or discussion forum, then continue with the systems schematic design of the hardware that used in this project and will continue by the program of the Arduino and smartphone app. The testing result shows the accuracy of actual motion is quite close to the desired position as programmed, and the servo test shows that the error value average is about 3,54% for the MG996R servo and 4,44% for the SG90 servo. Thus, the robot error value is about 1,38% on the x-axis and 12,14% on the y-axis in the first test. And for the second test is about 1,96% on the x-axis and 3,15% on the y-axis.
Optimization of Machining Parameters and Tool Angle on Surface Quality of Turning Operation Using Taguchi Grey Relational Analysis Nanang Ali Sutisna; Sapto Agus Nowoasto
ROTASI Vol 25, No 2 (2023): VOLUME 25, NOMOR 2, APRIL 2023
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.25.2.1-7

Abstract

Turning is an operation using a lathe machine and used to remove metal from the outer diameter of a rotating cylindrical workpiece and reduce the workpiece's diameter while it is rotating. In turning operation, there are various parameters available and there have been several studies and researches that examine the way of optimizing turning parameters to achieve preferable performance. Surface roughness quality is one of the most expected performances. This study aims to optimize the tool angle and machining parameters such as depth of cut, feed, and speed on turning operation to achieve the best surface roughness quality. Turning operations are performed based on the orthogonal array for stainless steel. The optimization of parameters and angle tool in this research used Taguchi Grey relational analysis. This method is expected to minimize the surface roughness of the work piece on turning operation. The Taguchi Grey relational analysis method in this research is meant to calculate and analyze the optimal condition for combined parameters and tool angle to get the optimal surface quality. The result shows that the optimum cutting conditions were cutting speed 70 m/min, depth of cut 0.4 mm, the feed rate 0.2 mm/rev, and cutting-tool angle 91º.
COMPARATIVE ANALYSIS OF NOISE, EMISSION, AND PERFORMANCE OF SHIJIRO RACING EXHAUST WITH STANDARD EXHAUST ON A 2020 VESPA SPRINT 150 I-GET Sutisna, Nanang Ali; Ramadhan, Ibnu Abil
ROTASI Vol 27, No 2 (2025): VOLUME 27, NOMOR 2, JULI 2025
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.27.2.49-63

Abstract

This article presents a comprehensive comparative study of the standard and Shijiro Standard Racing exhaust systems on a 2020 Vespa Sprint 150 i-GET. This study aims to evaluate the efficacy of the exhaust system. The research objectives include a comparison of motorcycle performance, noise production and exhaust emissions, with adjustments made in accordance with Indonesian laws and regulations. The study also examines the airflow of the exhaust gas using Computational Fluid Dynamics (CFD) simulations. Testing procedures were conducted on the 2020 Vespa Sprint 150 i-GET, utilizing both standard and racing exhaust systems. These tests included performance, noise, and emission tests, conducted using a dynamometer, decibel meter, and gas analyzer, respectively. The data collected from these tests were analyzed to provide a comprehensive comparison between the standard and racing exhaust systems. The result is that even though it makes a louder sound, the racing exhaust still meets noise regulations in Indonesia. Both exhaust types met emission standards. The performance results revealed that standard exhausts outperformed in horsepower, while racing exhausts excelled in torque. The study also involved the use of reverse engineering to analyze the airflow in the exhaust and obtain design, dimension, and size information. The CFD simulations confirmed the influence of exhaust construction on sound, performance, and emissions. This research provides valuable insights into the performance of standard and Shijiro standard racing exhaust systems, contributing to the body of knowledge in this field. 
Analysis Of The Influence Of Spindle Speed And Feed Rate On The Surface Quality Of The CNC Lathe Machining Process Using SS400 Material With Taguchi Method Sutisna, Nanang Ali; Al Grage, Fathir Fajaryanto
ROTASI Vol 27, No 3 (2025): VOLUME 27, NOMOR 3, OKTOBER 2025
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.27.3.14-21

Abstract

The CNC lathe machining process is one of the choices in the manufacturing industry. The CNC lathe machining process usually makes machine components that are either flat or cylindrical. This process has a principle, namely a process of forming the outer and inner surfaces of the material by rotating the workpiece and then meeting it with a cutting tool with an axis parallel to the workpiece. A CNC lathe is a machine that can move a cutting tool by receiving command data and then processing it. This study will show the effect of variations in spindle rotation speed and also variations in feed rate on the CNC Lathe Liouy Hsing 450 machine on the surface quality of the workpiece. In this study, SS400 steel and WNMG-type cutting tools were used as fixed variables, with variations in spindle speed of 800, 1000, and 1200 rev/min and feed rates of 0.1, 0.2, and 0.3 mm/min. The methods that will be used are experiments and statistics, then data collection will be carried out using observation and documentation methods. The data that has been obtained will be processed using Microsoft Excel. This study concluded that feed rate has a greater influence than spindle speed, and the fourth experiment at a spindle speed variation of 1000 rev/min and a feed rate of 0.1 mm/min had the smoothest surface roughness value of 0.487µm.
Co-Authors Aditama, Fauzan Yasa Al Grage, Fathir Fajaryanto Aldhito Hardianto Amin, Grace Budi Sutrisno Farrand, Michael Quinn Filda Rahmiati Harist Fauzi Hariz fauzi Hernawan, Rendi Lydia Anggraini M. Fajar Aulia Ansela Akbar Muhammad Irfan Satria Muhammad Munajad Permana, Fahyudha Rahman Hakim Rakha Amrillah Fattah Ramadhan, Ibnu Abil Reza Alfarisi Firmansyah Ritonga, Yehezkiel Kusmadi Riyanto Adji Sapto Agus Nowoasto Sastranegara, Azhari Timotius, Hizkia Tjong Wan Sen Vicky Gufron Afandi Zairullah Azhar