I'm looking to replace the motor on my Unimat 3, a machine which is otherwise perfect for what I do. But that intermittent-service, hotternapistol motor is a pain.
The problem for me is not lack of power (stuff I make is small and mostly brass) but the 80% duty cycle. The form factor is 3" dia by
7" long max. Two speed nice but not required. 1750 rpm or more is fine, I can make and change pulleys. Continuous duty a must. 115ac single phase preferred, DC fine if a power supply is available. 115 ac would work out to 1 to 3.5 amps or so.I've looked a lot of places. Sewing machine motors seem to either be too small (home) or too large (commercial). Watchmaker's lathe motors are too big, as are the ones on Surpluscenter. The unmoderated Yahoo Unimat group is getting spammed to death and the moderated one doesn't seem to be answering requests to join, so not much help there.
It seems to me that somewhere out there there must be a continuous-duty motor that fits. Any suggestions?
Cheers,
Earl