Thread: Joe90's BIG RAT Build.
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31-05-2020 #23
As the others say don't get stressed over it and just build to give the required amps plus a few spare. Work on 60% of the total Motors rated amps and it will be fine.
Don't go crazy OTT with the amps because you will end up with a large Va rating and the inrush will bite you. 500Va does most 3 axis machines and 625Va for 4 axis running typical 4.2a steppers with 60-70Vdc. These are tried and tested values on 100's of machines.-use common sense, if you lack it, there is no software to help that.
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