/diy/ - Do It Yourself

Anonymous Fri Nov 2 09:39:12 2018 No.1490527 [View]
File: 127 KB, 1000x769, -CNC-milling-spindle-ER11-800w-air-cooling-spindle-motor-1-5KW-inverter-cnc-engravin-bits.jpg [View same] [iqdb] [saucenao] [google]

Suppose I want to use a 3.3v microcontroller as a CNC controller.

Exactly what should I do to keep this puppy from making the mcu misbehave?

The MCU already is inside an old flex-atx case, but I could make a folded steel sheet case later on for superior noise immunity. What should I ground to what? Should I ground the motor shell? The atx case to PSU gnd? Should I use a small can just for the controller unit?

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/diy/ - Do It Yourself

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