scholarly journals Rancang Bangun Prototipe Mesin Gravir Laser Berbasis Mikro-kontroler Arduino

2019 ◽  
Vol 3 (2) ◽  
pp. 90
Author(s):  
Nanang Ali Sutisna ◽  
Harist Fauzi
Keyword(s):  
Control System ◽  
Open Source ◽  
Laser Power ◽  
Stepper Motor ◽  
Motor Drive ◽  
Vocational Schools ◽  
Laser Engraving ◽  
Movement Error ◽  
Emergency Stop ◽  
Cnc Controller

Nowaday, the use and demand of laser engraving machines is increasing for production and practical activities in vocational schools and engineering faculty in Indonesia. However, the price of laser engraving machine in the market is still quite high. Therefore, there is a need to find a solution to overcome this problem by designing a laser-engraving machine that is devoted for practical purposes at affordable prices. The control system on the laser-engraving machine is designed using an Arduino Nano-based 2-axis CNC controller, with three stepper motor drive actuators, to drive the machine on the x, y, z axis and laser axis with 2500 mW of power. To prevent damage if there is a movement error, the machine is equipped with emergency stop button. The use of a control system with an Arduino nano-based 2-axis CNC microcontroller is selected on the laser engraving machine because it is open source and more affordable. It is expected that by implementing Arduino nano ATmega328 microcontroller as a prototype, in the future the control system can be developed further so that the control system is more stable. From the results of laser engraving machine testing using laser distance parameters, laser power and laser speed motion, obtained the value of the best engraving machine parameters to be used as standard parameters.

scholarly journals Rancang-bangun prototipe mesin CNC laser engraving dua sumbu menggunakan diode laser

2018 ◽  
Vol 13 (1) ◽  
pp. 32
Author(s):  
M Munadi ◽  
Aulia Syukri ◽  
Joga Dharma Setiawan ◽  
Mochammad Ariyanto
Keyword(s):  
Diode Laser ◽  
Manufacturing Industry ◽  
Radiant Heat ◽  
Stepper Motor ◽  
Step Method ◽  
Laser Engraving ◽  
Cnc Machines ◽  
Motor Movement ◽  
Movement System ◽  
Cnc Controller

The development of industrial technology can help the manufacturing industry for producing quality products. One tool that can help produce such quality products is CNC machines. As we know that the price of CNC machines is not cheap. Therefore, in this article, the researchers suggest how to design a prototype CNC laser engraving machine for the acrylic workpiece. The machine is designed as cheaply as possible but provide great benefits. The machine frame is designed using aluminum extrusion, the laser uses a laser diode type, the actuators of axis uses the stepper motor, and the control software uses a USB CNC controller. The dimension of workpiece that can be machined is 600 mm x 300 mm x 2 mm. The optimization of the stepper motor movement system is chosen 1/8 micro stepping after testing full-step method, half-step, 1/8 micro stepping, and 1/16 micro stepping. Using a 2.5 watt diode laser module, the radiant heat received by the acrylic workpiece during the engraving process is 558.8 x 10-5 cal/sec.

scholarly journals Laser beam calibration for wood surface colour treatment

2021 ◽  
Author(s):  
M. Jurek ◽  
R. Wagnerová
Keyword(s):  
Laser Beam ◽  
Power Control ◽  
Wood Surface ◽  
Laser Power ◽  
Production Quality ◽  
Chemical Processes ◽  
Continuous Control ◽  
Calibration System ◽  
Laser Engraving ◽  
Wood Surfaces

AbstractLaser engraving of photographs on wood surfaces is a challenging task. To optimize the outcome and production quality it is necessary to control every aspect of the laser engraving process. Most of the production machines and technologies overall are mainly focused on laser power control. However, with other systems and deeper knowledge of the wood characteristics it is possible to achieve even better quality. This paper deals with enlarging the number of achievable shades of burned wood and its optimization. A calibration system was developed to control colour shades of engraved wood with a combination of laser power and optic focus. With this approach it is possible to widen achievable palette of engraved shades by continuous control of chemical processes of laser and wood interaction. The production is divided into wood burning and wood carbonization by variation of laser beam focus.

Open-Source Real-Time Robot Operation and Control System for Highly Dynamic, Modular Machines

2013 ◽  
Author(s):  
Andrew Peekema ◽  
Daniel Renjewski ◽  
Jonathan Hurst
Keyword(s):  
Control System ◽  
Open Source ◽  
Real Time ◽  
High Frequency ◽  
Performance Test ◽  
Frequency Control ◽  
Human Robot Interaction ◽  
Sensors And Actuators ◽  
Key Innovation ◽  
Hard Real Time

The control system of a highly dynamic robot requires the ability to respond quickly to changes in the robot’s state. This type of system is needed in varying fields such as dynamic locomotion, multicopter control, and human-robot interaction. Robots in these fields require software and hardware capable of hard real-time, high frequency control. In addition, the application outlined in this paper requires modular components, remote guidance, and mobile control. The described system integrates a computer on the robot for running a control algorithm, a bus for communicating with microcontrollers connected to sensors and actuators, and a remote user interface for interacting with the robot. Current commercial solutions can be expensive, and open source solutions are often time consuming. The key innovation described in this paper is the building of a control system from existing — mostly open source — components that can provide realtime, high frequency control of the robot. This paper covers the development of such a control system based on ROS, OROCOS, and EtherCAT, its implementation on a dynamic bipedal robot, and system performance test results.

scholarly journals The Modelling, Simulation and FPGA-Based Implementation for Stepper Motor Wide Range Speed Closed-Loop Drive System Design

Machines ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 56 ◽  
Author(s):  
Chiu-Keng Lai ◽  
Jhang-Shan Ciou ◽  
Chia-Che Tsai
Keyword(s):  
Embedded System ◽  
High Speed ◽  
Closed Loop ◽  
Open Loop ◽  
Drive System ◽  
Stepper Motor ◽  
Motor Drive ◽  
Digital Controllers ◽  
Loop Control ◽  
Wide Range

Owing to the benefits of programmable and parallel processing of field programmable gate arrays (FPGAs), they have been widely used for the realization of digital controllers and motor drive systems. Furthermore, they can be used to integrate several functions as an embedded system. In this paper, based on Matrix Laboratory (Matlab)/Simulink and the FPGA chip, we design and implement a stepper motor drive. Generally, motion control systems driven by a stepper motor can be in open-loop or closed-loop form, and pulse generators are used to generate a series of pulse commands, according to the desired acceleration/run/deceleration, in order to the drive system to rotate the motor. In this paper, the speed and position are designed in closed-loop control, and a vector control strategy is applied to the obtained rotor angle to regulate the phase current of the stepper motor to achieve the performance of operating it in low, medium, and high speed situations. The results of simulations and practical experiments based on the FPGA implemented control system are given to show the performances for wide range speed control.

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