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#13654 |

It is safe to move each axis slowly since it will produce a lower voltage and current than the board is usually powered with. But if you move fast, or move multiple axis at the same time at a medium speed then it could produce a higher voltage than you want.

If I remember correctly stepper motors produce AC voltage, not DC like the ramps board runs on, which makes moving it fast even less desirable because some components might not like the reversing of polarity above a certain frequency.