Some guys like to work in cast iron. Some like to work in brass or aluminum. Others prefer different materials... http://home.clara.net/rogerpattenden/html/beam_engine.html http://home.clara.net/rogerpattenden/ =-=-=-=-=-= Rob Skinner La Habra, California mailto:rskinner at rustyiron.com http://www.rustyiron.com <http://www.rustyiron.com/>