Just make a crapy video to show how I do that.
Instead to use CNC XY table and get 1200mm/min
I add A rotational axis and got 30159mm/min scan rate and use only Y
axis to advance board every revolution of arm by 0.01mm.
The laser is mounted in aluminum arm to the stepper motor. Powering
stepper motor with 16 or 32x microstep was total disaster. Now I drive
motor in full step but picked speed where inertia of arm just coencide
with resonance so motion is wery smoth.
http://youtu.be/8ekioGZOkb4
Instead to use CNC XY table and get 1200mm/min
I add A rotational axis and got 30159mm/min scan rate and use only Y
axis to advance board every revolution of arm by 0.01mm.
The laser is mounted in aluminum arm to the stepper motor. Powering
stepper motor with 16 or 32x microstep was total disaster. Now I drive
motor in full step but picked speed where inertia of arm just coencide
with resonance so motion is wery smoth.
http://youtu.be/8ekioGZOkb4