NordicCNC's build log

[NordicCnc]

I would at least fit a mains filter because of them being Servo's, however, I have seen that some people have had issues with DMM servo's because they didn't use line reactors so you might want to fit them to be safe, or just go with mains filter and if you get any issues you can always slip a line reactor in between.!
It mostly depends on your incoming supply quality I think and I seem to remember those who have had issues where US based which works on different Freq and voltage to EU.

Regards the frame then yes it's fine and you would want the earth to the frame anyway for safety just in case a wire shorted to the frame.

No. That will be fine just make sure that all grounds go to one star point. If the frame is painted I would make a direct connection from the box to the frame.

Thanks both of you! This helps a ton. A line reactor costs about 100€, so not a big deal. I will fit one just to be sure!

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