I came across this forum while looking for ideas/answers to support my addiction...er, HOBBY! I have a mechanical background in several areas including fabrication, welding, millwright, machinist, precision sheet metal, and the "other kind" of sheet metal work...blaa, blaa, blaa. Back to the hobby. I do lapidary work as my hobby and just started a few years ago. One of the first things you find out about it is the expense of diamond tooling. I've always been a diy kind of person, so I was attracted to the thread on diamond tooling. Always looking for a way to fabricate my own.