Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Old February 19th 08, 07:31 PM posted to rec.crafts.metalworking
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Default Rotary phase converter versus trying to run a VMC straight from single phase

"Dave, I can't do that" wrote:

I am pretty sure you will find that the 3-phase is only for the
spindle motor and maybe the coolant pump. The CNC machines we have
here, all have separate 115v line cords to the controller.

The servo power supplies on most of the cnc's I've repaired have 3ph bridge
rectifiers in them.


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