8 Dec
2008
8 Dec
'08
11:01 a.m.
On 8 Dec 2008 at 13:36, Jonathan Gevaryahu wrote:
The trouble is you need to buy a punch to punch the
foam into discs of
the same (or slightly narrower) size as the shiny conductive paper
discs are (or have it shave a small bit off the edges off of the
conductive discs, if they're a tiny bit smaller it shouldn't hurt
anything I'd think). I have not done this yet, and am not sure where
to buy an appropriate punch (art supply store didn't have it).
A piece of thinwall metal tubing with the edge sharpened often works
well as a soft-materials punch. Use with a soft wood block as
backing and tap with a mallet.
Leather craft stores also carry punch sets--and they're also on ebay
(e.g. item 270313626700). As with many Chinese tools, a little work
after you receive it, such as sharpening to a really sharp edge will
go a long way toward better results.
I use a similar punch to cut felt and cork washers. There's no
reason that it wouldn't work on foam.
Cheers,
Chuck