Well, after reading a little about the subject here yesterday, I looked around and saw the Egg-Bot device (very clever by the way, and inexpensive) but didn't see much about using a laser. I saw where people were using hand engravers, the high speed pencil tip style, but no lasers...
So, I cracked open a couple eggs, plopped them down on the table and tried to do little stars and circles as a test pattern....
Holey Moley!! They friggen stink! I think I now know why lasers are not used for this.. I was trying to cut all the way thru, but the first few attempts with my chinese 40Watt tube at about 15% power did leave engraved lines....Then moved up to about 30% and did make cuts, but had to push the resultant shapes thru with my finger. That's about when I gave up because of the smell....
looks like I will be building one of Dan's filters if I am going to do any more of this!
rj