On Friday, April 8, 2011 2:51:42 PM UTC-7, Bob La Londe wrote:
I bought a piece of stainless shim stock ... and it
just occurred to me that I have no idea how to cut it cleanly without
curling or damaging the edge.

Well, tinsnips are OK, a full bench shear is better, and if the edges
matter I've used etching after putting a pattern on in Kodak photoresist
(the spraycan type, UV exposed...) like printed circuit fabrication
uses.

Fastest material removal was with some mild nitric acid solution,
but that's a bad idea if you don't have a fume hood, because there
are some brown gasses involved.