Description
Laser exposer - SketchUp project. X lines are provided by polygon mirror, taken from LaserJet 6L LSU.
Bottom view - moving board in Y direction done with stepper motor and lead screw.
STM32F103C8T6 "Blue Pill" board is used for the control
Python based GUI:
The first tests - result is not very good, I haven't got 0.2mm tracks with 0.2mm clearance. Reason?
Polygon mirror error
Beam is not focused well
Polygonal mirror create 4 lines with offset instead single one.
Beam sync sensor is not working stable because beam is not focused on the sensor.
Design converter to bitmap image is very far away to be perfect
After some improvement it looks much better: