thx for the info. thk i'm gonna go M4 then (find 3.3 drill bit first)
ok first half semi completed (done the holes and dremeling, no lapping yet)
first pic is just the holes:
second pic is a bit better quality; holes + dremellines
maybe some stuff to consider;
the guy i bought the copper from was a real craftsman. he said that copper is almost as easily cut as wood. so if u find one of those 45-90° saws, go for it. i also asked him about cooling while drilling. he said that that wasn't necessary in copper.
all holes were drilled at 1800rpm (3.5 and 5.5 for mobo holes)
dremeling was done at +/- 15000rpm (half speed)
dremeling all that cost me 1/5 of a dremel wheel, so i guess that is almost ideal rpm for cutting such a soft metal.
anyone got experience on cutting speeds in copper?
edit: whoah rotor, thx dude,that is what was needed. btw sorry for ripping on your designs. its just great; bought the bench drill for 45€ the copper for 45€ ; 16€ for the vice, i mean, thats what a swiftech block without shipping would cost me in belgium.