Treedweller wrote:
Hi,
I'm new to this group, but looked through over 20,000 headers and
FAQ's for info before posting this (sorry if it's an oldie that was
worn out long ago).

I'm looking to make some simple one-sided castings from tin, pewter,
zinc, or other easy metal. I've tried sand casting (distorted when I
poured in the metal) and carving a wood mold (moisture boiled out and
created air pockets).

I got recommendation to try "investment casting" with "Satin Cast" and
I've also heard of carving soapstone.

Anyone willing to save me some of my next few obvious mistakes? If I
go for soapstone, where can I get a small piece cheap? will the Satin
Cast work well (I ordered some)? Any other suggestions? I've sen
rubber mold products, but would expect it to melt when exposed to
molten metal.

Sorry to be so vague, but I'm just starting to figure this out--any
help would be appreciated.

Thanks,
Keith


If the pieces are small and you want to try something really retro you
can make mold cavities in cuttlefish bone after sanding the flat side of
the pieces of bone smooth. You can carve the mold cavity or if you have
a pattern piece just squeeze or pound it into the bone.

Here's a link:

http://artisans.ombra.net/tecniche/CUTTLEBONE.htm

I had an old timer jeweler show this to me when I was a kid. He
demonstrated the technique by casting a pair of silver ear rings.

It might just satisfy your needs, and the cuttlefish bone IS still
available:

http://alpha-supply.com/catalog/page...=cat&catid=248

Or, try your local pet shop. IIRC parrots and similar birds like to chew
on it.

HTH,

Jeff








--
Jeffry Wisnia

(W1BSV + Brass Rat '57 EE)

"As long as there are final exams, there will be prayer in public
schools"