Quote:
Originally Posted by ETsC10
Are the mills 3 phase or single? If single, I would think you'ld be good to go
with 15 amps. I worked for Boeing, for years, as a mill operator and every
Bridgeport I've ever worked with had a 1 hp motor.
To put it in perspective, think of a mill as a large, complicated drill press
with a very cool table. That weighs a lot. 
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Bridgeports are great machines, aren't they Ellen ? I am a semi-retired toolmaker & have many ,many hours of experience on these machines ! With the right tooling & fixtures, you can do so much work & get great results....even more so with the addition of a digital readout.