I have attempted to join and am awaiting my email data.
Meanwhile, I have several chunks of Ironwood, an extremely hard wood with a beautiful grain.
It has ocurred to me that I might be able to tumble these pieces of wood with an appropriate medium like walnut shells, and polish them to a high and beautiful sheen.
I found your site, researching tumbler consruction "How To".
Any thoughts or opinions would be very welcome.
TBPollock