Problem? Sometimes Proofgrade cuts do not cut all the way.
Usually it cuts the wood but nearly creases the protection underneath which is OK but a hair thickness less can be a problem particularly when the piece is very delicate.
Accuracy is also of interest so I am always doing a precut as 10 pew and 500 zoom to see where the design will land. . well today the Proofgrade cut did not cut and I had to recut it, but how to put the piece back exactly where it was?
Fortunately as I am experimenting with a design I put in a tile I intend to engrave one day to establish exact distance from the pass through and parallel to it and then once placed added 4 magnets tight against the piece to create exact edges distance.
Well when the design did not cut through I was able to put the maple back exactly where it had been and the second cut a bit overdid it but actually did not destroy the very thin bits.
The tile is removed during the actual cut as earlier the tile got pretty nasty from the smoke