I don't know where you are, but you might be able to design and have
made locally a punch set to use in a cheap hydraulic press. My
thoughts on a design would be a punch of the right size with two holes
for alignment. And a die with two rods that align the punch. The
rods would be in the area being punched out.
You could put the punch on the material and get it aligned, then use
it as a drill guide to drill the alignment holes. If I were doing it,
I would have the alignment rods attached to a plate and the plate
attached to the bottom of the die with a couple of dowel pins and a
couple of screws. After punching several holes, you could unscrew the
screws holding the rods and push the scrap on through the die.

Please note that I have never made such a thing, so there might be a
bunch of problems that I did not consider.

Dan


"Q" wrote in message

That hydraulic punch driver.. any clue on cost ?.... Would it be possible to
use one of those cheap hydraulic press thingies like this one?
http://www.biltema.dk/products/produ...?iItemId=17854 ( can get
this one for about 150$ wich I find cheap )... It is rated for 5 tons..

Square vs Rectangular :Just shows that I shouldnt post messages in a foreign
language when I got up at 4 am and worked for 12 hours :-)

/peter