Hey all. I am engraving faceplates for electronics equipment. They are 3x20" on .040" material. The engraving depth is quite critical .001" tolerance.
My machine is very rigid and can do the .001" repeatability no problem, but I am having problems keeping the material flat. I have been using double sided tape, but it is not keeping the material flat enough.
So I ordered a small vacuum pump and want to construct a vacuum clamp that will keep thin material flat to .001" I asked JoeWoodworker, but he did not have any suggestions.
Any suggestions from the crowd?
thanks