Re: Bridgeport Interact 720 What speed can the spindel take ?
The only DC motor that would operate at this RPM is either a BLDC or a Universal (Router) style AC/DC motor, your run of the mill ordinary brushed PM DC motors do not operate this high, generally.
If you have AC in order to run the Universal motor, then there is a variable speed drive touted on one of the forums here, the SuperPID controller which gives you feedback control down to 5krpm.
This has the Heidenhain control on it, right?
CNC, Mechatronics Integration and Custom Machine Design
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