Laser PCB Machine

Project Title

Laser PCB Machine

Project Area of Specialization Mechatronics EngineeringProject Summary

A Laser PCB Machine is producing good-quality printed material by using a laser to form a pattern of electrostatically charged dots on a light-sensitive drum, which attract toner (or dry ink powder). The toner is transferred to a piece of paper and fixed by a heating process. Laser Machines have opened endless possibilities for home production and rapid prototyping. You can easily create practically any model and print it.

Until recently, in order to make a circuit board for a prototype, you had to make it using a soldering iron, or order a short production run. However, many of us can make it using a conventional iron. However, this process is not very pleasing aesthetically or technologically. 

Here we would like to present another method to use Laser CNC Machine. With this type of CNC Machine, we can make PCB conductive track, pads and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive by a heating process. 

Project Objectives

Our objective is to design a system which is capable to perform task very precisely according to the instruction under complete safety environment and to save the time of the user.

For this purpose, we designed a Laser PCB Machine which is actually a CNC Machine, using Laser for engraving and cutting. We can make PCB conductive track with this Machine. This Laser Machines have opened endless possibilities for home production of PCB boards which mechanically supports and electrically connects electrical components using conductive tracks.

Project Implementation Method

Project Implementation Method

• Literature Survey
• Mechanical Design and Structure of Machine on Software
• Assembling of Machine, Component and Controller Selection 
• Learning of Controller function and its Language
• Coding and Simulink Modelling
• Finalizing Hardware and Testing  

Benefits of the Project

• Rapid designing of PCB
• More Accuracy
• Cab be used as both laser engraving and cutting
• process of conventional pcb designing by etching solution can be  replace by this machine  

Technical Details of Final Deliverable

• Linear motion: We are using lead screw 8" pitch 0.08334" mechanism in our Laser PCB Machine to achieve linear motion in both X & Y axes with the help of Stepper motors nema 23.
• Controlling: we are using ARDUINO UNO R3 for controlling mechanism with the help of CNC shield, Stepper motor driversCW5045 stepper motor driver for nema 23 stepper motor and dual channel 24v Relays.
• Etching: For the purpose of etching we use Laser 2500mW having wavelength of 450nm.
• Aluminum bed 1.5x1.5 ft.

Final Deliverable of the Project HW/SW integrated systemCore Industry ManufacturingOther Industries Others Core Technology RoboticsOther Technologies OthersSustainable Development Goals Decent Work and Economic Growth, Responsible Consumption and ProductionRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	35500
Stepper Motor	Equipment	2	2000	4000
Laser Module	Equipment	1	15000	15000
Microcontroller	Equipment	1	1000	1000
CNC Shield	Equipment	1	1000	1000
Stepper Motor Driver	Equipment	2	250	500
DVD ROM	Equipment	2	500	1000
Structure manufacturing	Equipment	1	8000	8000
Miscellaneous	Miscellaneous	1	5000	5000