To Peter Neilson, Craig Brougher and other roll perforating amateurs,

I'm working with a company who needs to make accurate cuts into 0.007
inch thick mylar sheets.  We purchased a 25 watt CO-2 laser, SYNRAD#
95-421110-00.  We built a stepper motor driven X-Y table which moves
the material under the laser beam.  It cuts paper even better than
mylar, making a clean 0.003" line (depends on the focusing lens system;
we just use a single lense with a 1.5" focal distance).  We cut easily
at 3 inch per second speed, and we can slow down and reduce the power
to 5 watts, still making a beautiful cut.  This laser system would be
perfect for making a roll perforator, but the laser alone costs $5400.
Maybe one can find a used one or a lower powered version...

Laurent Coray

 [ Editor's Note:
 [
 [ Synrad has a Web page, and I've sent off for the "Applications Guide".
 [ Others interested in this subject may wish to do the same.  I'll
 [ report on what I learn when I receive my copy.
 [
 [ Jody