arduino board

Nowadays, numerical control (NC) technology, which began with the two-axis milling of aircraft wings at MIT in 1968, has been employed in various fields. Due to its remarkable capabilities, numerical control has recently entered the realm of art as well. Interior architecture, sculpture, painting, and many other areas have found applications for this technology. In the present study, the combination of numerical control technology and computer-aided design (CAD) is used for two-dimensional drawing and painting. The two-dimensional movement of the pen is achieved using two stepper motors and synchronized control of their rotation angles. The implementation of the motion control algorithm is initially performed in Cartesian space and then transformed to pseudo-polar space. Furthermore, this research investigates the design of a nozzle holder base for paint spraying and the creation of curves using this nozzle and the ability to colorize and draw both discrete and continuous curves on different surfaces is examined. Finally, the commands generated, corresponding to the positions of the motors and the control mechanism of the paint spraying, are converted into motion pulses using an Arduino board, CNC shield, and GRBL (G-code Real-time Boot Loader), enabling the desired shape to be drawn using the paint spraying nozzle. The capabilities of this CNC painter are shown by practical examples.

In the polishing process, one of the factors affecting material removal is the contact force between the tool and the workpiece. The contact force parameter is important in the sense that in this process, the amount of this force is lower than other machining processes, as a result, the force contact is one of the important issues to be controlled. In this research, a force control system based on the implementation of proportional-integral-derivative (PID) control algorithm with regulatory strategy in Arduino board is presented. It is possible to apply command signals to the actuator by the Pulse Width Modulation (PWM) unit of the Arduino board. The polishing setup in this research includes solenoid, dynamometer, direct current (DC) motor and belt sander. PID control coefficients were estimated by system identification method and using MATLAB software tools. The results show that the control system designed on the Arduino board provides the desired stability to control the polishing force with an acceptable error. Among other advantages of the developed system, the need for additional equipment is reduced compared to other commercial systems and it is more economical.

In the polishing process, one of the factors affecting material removal is the contact force between the tool and the workpiece. The contact force parameter is important in the sense that in this process, the amount of this force is lower than other machining processes, as a result, the force contact is one of the important issues to be controlled. In this research, a force control system based on the implementation of proportional-integral-derivative (PID) control algorithm with regulatory strategy in Arduino board is presented. It is possible to apply command signals to the actuator by the Pulse Width Modulation (PWM) unit of the Arduino board. The polishing setup in this research includes solenoid, dynamometer, direct current (DC) motor and belt sander. PID control coefficients were estimated by system identification method and using MATLAB software tools. The results show that the control system designed on the Arduino board provides the desired stability to control the polishing force with an acceptable error. Among other advantages of the developed system, the need for additional equipment is reduced compared to other commercial systems and it is more economical.