scholarly journals RANCANG BANGUN MESIN CNC MILLING MENGGUNAKAN SYSTEM KONTROL GRBL UNTUK PEMBUATAN LAYOUT PCB

2020 ◽  
Vol 4 (1) ◽  
pp. 37
Author(s):  
Muhammad Jufrizaldy ◽  
Ilyas Ilyas ◽  
Marzuki Marzuki
Keyword(s):  
Power Supply ◽  
Computer Numerical Control ◽  
Numerical Control ◽  
Stepper Motor ◽  
Cnc Milling ◽  
G Code

Mesin CNC milling adalah mesin potong berbasis komputer yang dapat menjalankan proses secara otomatis pada berbagai macam perintah berbasis bahan yang telah diprogram ke dalam perangkat lunak. Pada tugas akhir kali ini akan dirancang dan diimplementasikan CNC (Computer Numerical Control) Router dengan menggunakan Program G-Code dengan menggunakan GBRL Kontroller sebagai pengontrol mesin CNC. Mikrokontroler digunakan untuk menerima G-Code dari PC yang dikirim ke mikrokontroler yang selanjutnya dikontrol menggunakan GBRL kontroller untuk menggerakan motor Stepper. Mesin CNC ini dikendalikan dengan menggunakan software GRBL dimana ketika program dimasukkan kedalam software tersebut, stepper motor, spindle serta mata bor akan bergerak. Perancangan ini menggunakan 3 buah stepper motor dimana setiap stepper motor berfungsi untuk menggerakkan sumbu X, Y dan Z. Spindle digunakan sebagai pengendali mata bor yang berfungsi untuk mengukir layout pada PCB.Kata kunci : Motor Stepper NEMA , Driver Motor Board T, Breakout Board , Power supply , Spindle Kit

scholarly journals Rancang Bangun Acrylic Engraver and Cutting Machine Menggunakan CNC Milling 3 Axis Berbasis Mikrokontroler

eLEKTRIKA ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 13
Author(s):  
Iklil Vurqon Choirony ◽  
Mohammad Slamed Hariyanto ◽  
Miftachul Ulum ◽  
Achmad Ubaidillah ◽  
Haryanto Haryanto ◽  
...  
Keyword(s):  
Complex Shape ◽  
Cutting Tool ◽  
Spindle Motor ◽  
Numerical Control ◽  
Stepper Motor ◽  
Cnc Milling ◽  
Cnc Machine ◽  
Cutting Machine ◽  
Accuracy Level ◽  
G Code

<p><em><span lang="EN-US">The purpose of this research is to design and implement an automatic acrylic carving and cutting tool using a microcontroller-based 3-axis CNC machine. Computer Numerical Control (CNC) is a machine technology that is operated automatically to support the demand for a product that has a complex shape and high accuracy. In general, the construction of a 3-axis CNC machine and its working system is synchronization between the computer and its mechanics. This tool has a work process by utilizing the G-Code method as a command on the machine to carry out engraving and cutting automatically. The G-code was obtained from a previously designed image and then converted using the Aspire 9.0 software. Engraving and cutting is done by sending the G-code file to the microcontroller via the Universal G-code Sender software, then the microcontroller sends a signal to drive the motor driver which then drives the stepper motor so that the actuator movement is generated according to the image in the G-code file. Simultaneously the spindle motor will be active to engrave or cut acrylic. In this study, a trial scenario was carried out to determine the precision and accuracy of the tool, namely by engraving and cutting flat shapes such as squares, circles, triangles and segments. The percentage of success generated from this tool is 97,08% to 100%. Furthermore, testing is carried out to make products in the form of engraving writing, logos and calligraphy. Apart from that, we also tested cutting letters and key chains. When the test is carried out, the accuracy level is 1mm. </span></em></p>

scholarly journals A Low-Cost Vision-Based Monitoring of Computer Numerical Control (CNC) Machine Tools for Small and Medium-Sized Enterprises (SMEs)

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4506 ◽  
Author(s):  
Hyungjung Kim ◽  
Woo-Kyun Jung ◽  
In-Gyu Choi ◽  
Sung-Hoon Ahn
Keyword(s):  
Open Source ◽  
Machine Tools ◽  
Low Cost ◽  
Computer Numerical Control ◽  
Numerical Control ◽  
Smart Factory ◽  
Cnc Machine Tools ◽  
Shop Floor ◽  
Cnc Milling ◽  
Cnc Machine

In the new era of manufacturing with the Fourth Industrial Revolution, the smart factory is getting much attention as a solution for the factory of the future. Despite challenges in small and medium-sized enterprises (SMEs), such as short-term strategies and labor-intensive with limited resources, they have to improve productivity and stay competitive by adopting smart factory technologies. This study presents a novel monitoring approach for SMEs, KEM (keep an eye on your machine), and using a low-cost vision, such as a webcam and open-source technologies. Mainly, this idea focuses on collecting and processing operational data using cheaper and easy-to-use components. A prototype was tested with the typical 3-axis computer numerical control (CNC) milling machine. From the evaluation, availability of using a low-cost webcam and open-source technologies for monitoring of machine tools was confirmed. The results revealed that the proposed system is easy to integrate and can be conveniently applied to legacy machine tools on the shop floor without a significant change of equipment and cost barrier, which is less than $500 USD. These benefits could lead to a change of monitoring operations to reduce time in operation, energy consumption, and environmental impact for the sustainable production of SMEs.

scholarly journals Accuracy of Implant Surgical Guides Fabricated Using Computer Numerical Control Milling for Edentulous Jaws: A Pilot Clinical Trial

2020 ◽  
Author(s):  
Jinyou Chai ◽  
Xiaoqian Liu ◽  
Ramona Schweyen ◽  
Jürgen Setz ◽  
Shaoxia Pan ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Computer Numerical Control ◽  
Numerical Control ◽  
Cnc Milling ◽  
Implant Position ◽  
Surgical Guides ◽  
Computer Aided ◽  
Cad Cam ◽  
The Mean ◽  
Edentulous Jaws

Abstract Background To evaluate the accuracy of a computer-aided design and computer-aided manufacturing (CAD-CAM) surgical guide for implant placement in edentulous jaws. Methods Nine patients with twelve edentulous jaws seeking implants were recruited. Radiographic guides with diagnostic templates were fabricated from try-in waxup dentures. Planning software (Organical® Dental Implant, Berlin, Germany) was used to virtually design the implant positions, and the radiographic templates were converted into surgical guides using computer numerical control (CNC) milling. Following the guided implant surgery protocol, forty-four implants were placed into twelve edentulous jaws. Cone-beam computed tomography (CBCT) scans were performed post-operatively for each jaw, and the deviations between the planned and actual implant positions were measured. Results All 44 implants survived, and no severe haematomas, nerve injuries or unexpected sinus perforations occurred. The mean three dimensional linear deviation of implant position between virtual planning and actual placement was 1.53 ± 0.48 mm at the implant neck and 1.58 ± 0.4 mm at the apex. The angular deviation was 3.96 ± 3.05 degrees. The mean deviation between virtual and actual implant position was significantly smaller in the maxilla than in the mandible. No significant differences were found in the deviation of implant position between cases with and without anchor pins. Conclusions The guides fabricated using the CAD-CAM CNC milling technique provided comparable accuracy as those fabricated by Stereolithography. The displacement of the guides on edentulous arch might be the main contributing factor of deviation. Trial registration: Chinese Clinical Trial Registry, ChiCTR-ONC-17014159

scholarly journals Microcontroller – Based Plotter Machine

2018 ◽  
Vol 21 (3) ◽  
pp. 350-355
Author(s):  
Aman Ismail Nsayef ◽  
Anas Lateef Mahmood
Keyword(s):  
Lower Cost ◽  
Main Idea ◽  
Computer Numerical Control ◽  
Numerical Control ◽  
Drawing Process ◽  
Servo Motor ◽  
Main Structure ◽  
Stepper Motors ◽  
G Code ◽  
Arduino Uno

The main idea behind this paper is to design and implement a cheap, smaller size, easily operable, easy interface and flexible 3-axis Computer Numerical Control (CNC) plotter machine. The lower cost is achieved by using 2 CD drives from old PC’s with their stepper motors as the main structure for the hardware. The two stepper motors already found in the CD drives used to control the pen movements onto X and Y axis and one servo motor on the Z axis. An Arduino Uno microcontroller is used to controls the proper synchronization of these three motors during printing/drawing process. The Arduino Uno is programmed with G-Code parser from PC that is connected to the Arduino via a USB cable to control the motors movement and synchronization. The plotter machine is implemented and tested by printed different images and texts on papers (8cm × 8cm) using a pen, the small size of the papers because of the small plotter size. The motors winding voltages were displayed on the oscilloscope during the printing process to investigate the synchronization between the three motors. The design of the circuit is simple, inexpensive and can be accomplished using commercially available components.

scholarly journals CNC-Milled Superhydrophobic Macroporous Monoliths for 3D Cell Culture

2020 ◽  
Author(s):  
Gen Hayase ◽  
Daisuke Yoshino
Keyword(s):  
Cell Culture ◽  
3D Cell Culture ◽  
High Strength ◽  
Cell Types ◽  
Computer Numerical Control ◽  
Numerical Control ◽  
Cnc Milling ◽  
Water Droplets ◽  
Machined Surface

High-strength macroporous monoliths can be obtained by simply mixing boehmite nanofiber aqueous acetate dispersions with methyltrimethoxysilane. On the boehmite nanofiber-polymethylsilsesquioxane monoliths, we can fabricate structures smaller than a millimeter in size by computer numerical control (CNC) milling, resulting in a machined surface that is superhydrophobic and biocompatible. Using this strategy, we fabricated a superhydrophobic multiwell plate which holds water droplets to produce 3D cell culture environments for various cell types. We expect these superhydrophobic monoliths to have future applications in 3D tissue construction.

scholarly journals Perancangan Sistem Multi Computer Numerical Control (CNC) untuk Plotter dan Laser Engraving

2020 ◽  
Vol 9 (1) ◽  
pp. 51-58
Author(s):  
Diki Muhamad Sobirin ◽  
Jana Utama
Keyword(s):  
Computer Numerical Control ◽  
Numerical Control ◽  
Laser Engraving ◽  
G Code ◽  
Labview Program

ABSTRAK – Tujuan dari penelitian ini adalah membuat CNC yang memiliki 2 fungsi dalam 1 sistem. Dengan memanfaatkan USB serial untuk komunikasi antara komputer dan mikrokontroler. Program untuk mengoperasikan CNC dirancang dengan menggunakan perangkat lunak LabVIEW, program akan mengkonversi gambar menjadi G-Code dan mengirim G-Code ke dalam sistem CNC untuk melakukan proses plotter  atau laser engraving. CNC Plotter dapat membuat sebuah pola gambar pada kertas dengan bolpoin secara otomatis. Sedangkan CNC Laser Engraving dapat membuat sebuah gravir pada kayu dengan memanfaatkan panas laser, panas laser akan mengikis permukaan kayu secara otomatis. Dalam merancang multi CNC 2 buah motor stepper digunakan sebagai akuator penggerak sumbu, dan untuk penggerak bolpoin menggunakan motor servo. Adapun laser yang digunakan untuk gravir kayu menggunakan dioda laser berdaya 500 mw. Berdasarkan hasil pengujian dalam penelitian ini, Program pada LabVIEW dapat mengkonversi gambar menjadi G-Code laser, dan program dapat mengirim G-Code ke dalam sistem CNC, sehingga CNC dapat melakukan proses grafir laser pada kayu serta dapat mengatur ketebalan grafir sesuai dengan kebutuhan. Adapun kecepeatan pemakan ideal  50-500 mm / menit dan kecepatan pemakan maksimal 2000 mm / menit. Sementara itu,  CNC Plotter dapat mencetak sebuah gambar bidang berbentuk kotak dengan ukuran terkecil 2 mm x 2 mm, dan lingkaran dengan diameter terkecil 2 mm dengan tingkat akurasi 100%. Maksimal dimensi gambar yang dapat dikerjakan Multi CNC ini 300 mm x 300 mm. Kata Kunci – Multi CNC, LabVIEW, G-Code, Mikrokontroler.

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