has anyone perfected a system to do 2 sided coin type work? I am doing a 750 to 1000 pc run of a 2" circle with 1/8" hole at top for keychain. Front and back have bitmap to engrave an vectors to mark and cut. There are 55 on a 12 x 24 sheet. Right now we are cutting one side all the way and then holding down the waste and flipping them over and then very carefully trying to align them. then we run the back side that has not vector cuts, just engrave and mark.
I was thinking of marking the perimeter and the keychain hole center on a piece of 1/4" MDF, then find a hinge screw that just fits in the 1/8" keychain hole and line them up this way. Takes a little more set up but I think it will be faster in the long run. plus I can use it for other projects that require a 2" circle flip op.
Another thought is to use the same MDF as the bottom but then use one of the cut out sheets from the front side and then glue it down to the MDF. The only problem is that even though the laser kerf is minimal/hairline, you can still have enough play to be off center.
I appreciate any thoughts or ideas.
Thanks,
Michael