Homebrew PCBs

Dear lmri2071 

  You wrote:-
  You can control the spot size of the laser beam by moving the Z-axe of your mill. Focusing the beam produce a cone of light which is truncated when the laser hit the surface. The focal length of your optics and the distance from your output lens surface will permit you calculate or estimate the spot diameter. I think that maybe this is a good way to "simulate" the aperture. 
  Lucho

  Simply brilliant!!! Why did we not think of that before!!!!!
Greetings from

Andy Mathison

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