Cheap DIY
DVD Laser Diode Engraver

Mechanics | Electrical | Computer control

Built a computer-controlled laser machine that cut and engrave plastic.Components used a DVD burner and scanner.

Mechanics

dvd-comp.jpg
DVD component

 DVD step motor.jpg

Metal framework,5v Stepper motor with complete mechanism,laser diode with lens and focus coil.
sq4830.jpg (13745 bytes)
Color Scanner.		 scanner.jpg (39752 bytes)

Metal framework,12v Stepper motor with complete mechanism.

Scanner controls the X axis
dvd burner the Y axis

 Attached the dvd metal framework to the scanner.

 

Electrical
Parallel-Port-Viewer_1.jpg

Male parallel port cable wiring.

 port1.gif

Driver circuit
laser diode graver.jpg
laser diode graver.jpg

Parts
Resistor 5x1k , 4x470R , 1x5R6 5w , 1x2k2 , 1x220k , 2x330R , 1x1R-5R 5w
Potentiometer 1x1k , 1x10k
NpN Transistor

5x2sd882 , 1x2sc945

IC

LB1649 ,LD1117
Switch-momentary NO

x2
Diode

4x1N4007
Capacitor

2x100n , 1x10n

Polarized Capacitor

1x1mf

 

Computer control

The program I'm using to control the parallel port is "Mini CNC Laser Engraver". 

You can download the program Here -> LaserEngraver.exe

software
Please note that you first start the program, and after start the power supply for drivers!


Always use laser IR blocking protection glasses when working with lasers!!!
The light from the IR laser modules is dangerous, it will damage your eyes if looked directly into it.