I recently lucked out in acquiring an ancient (but fully functioning) 12" Crane flat-lapping machine. Crane is the parent company of Lapmaster, and this thing is bulit like a brick sh -- well, you know.
A new one is about $5000 and this one only set me back $650.00.
It came without the three conditioning rings, which ain't cheap. Does anyone have an idea how I could make these myself, or a place to acquire some at a good price?