SHIZUOKA ST-N CNC Conversion

CNC Mill Conversions and Builds
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20201207_220336
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Japanese pre-converted CNC mill that I am bringing into the modern era with AC Servos, bigger spindle motor, and Linux CNC. Just starting out ordering materials and soon to order the servos. So far I have removed the old spindle motor and variable pulley assembly because I am replacing the variable drive system with a VFD. The old Bandit CNC stepper motors and control unit will be stripped off to put Linux CNC and some DMM AC servos in place.

Question to Dr. D-Flo:
I am using the same .75kW AC servos from DMM. What size breakers did you use for your drives?

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Hey man! Sorry for my delayed response. Was super busy getting that SLS printer video out. I’m excited to see how this conversion shapes up.

I pulled this screenshot from DDM’s Servo setup video:

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And I got this table from DMM’s website:

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For the 0.75kW servo motors, you would need the H01 drive, which would require a 20A breaker.