Homebrew PCBs

Very nicely done!!

What software are you using to do the bitmap or vector to rotary
control/firing?
Bertho

-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] 
Sent: Wednesday, December 10, 2014 09:06
To: Homebrew_PCBs@yahoogroups.com
Subject: Re: [Homebrew_PCBs] Re: laser ablation of paint on copper clad

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