Originally Posted by max_imum2000  guys , guys
you only need 2/3 of the amp rated on the motors |
Not always. It depends on the drives. Correct with Geckos or a Xylotex, but with a board like a Stepperworld, you'll actually need 2x the rated current per motor (full current for each coil of the motors).
If I am understanding everthing that I have read in the zone I need around 32V 6A for my three motors, so I could wire two of these in series and be ok. However, I would like to be able to add a fourth axis later. This would require 42V 8A |
If you're talking about steppers here, adding more motors shouldn't requie an increase in supply voltage, if the motors are all rated the same voltage. Whether you use 1 motor or 3, the required voltage would be the same.