Uploaded November 2018 | Updated September 2026, 8 hours ago

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A BLDC drive from Anaheim Automation is tested as a replacement to stock spindle drive of the PM25 mill. The stock drive is not documented, lacks a fault signal, and responses slowly to direction and speed changes limiting rigid tapping. The Anaheim Automation MDC300-120151 drive has advantages but with the stock PM25 spindle motor, there are some gotchas including poor torque at low speeds, poor speed regulation, and a few others. I'm still looking for a suitable replacement for general use.

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