I'm looking to have cut a large number (700) spur gears, 1.7" to 3.3" diameter, from 12 mm thick BB. I had a supplier lined up, approved his samples, and then he backed out. He seemed to have trouble figuring out what material would work for him. Bores can be cut a trifle small for me to ream to finish size.
Is this really at the fringe of what's possible? Can anyone point me in the direction of a capable firm to do this?
PM me for file if interested.