"F. George McDuffee" wrote in message
...

snip

google on "lost foam" for 163k hits
to start click on
http://www.lostfoam.com/content/feat...s/article1.php
http://en.wikipedia.org/wiki/Lost-foam_casting
http://ezinearticles.com/?Lost-Wax-a...sses.&id=85804
http://www.enigmetallic.com/LFMC.htm
http://www.sculpture.net/community/a...hp/t-4880.html

some tips on improving surface finish
http://www.theworkshop.ca/metcastmac...FMC4/LFMC4.htm

Good stuff, George. Thanks.

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Ed Huntress