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26-03-2012 #11
In parallel the current is twice the current for one winding. In series it is the same as the current for one winding as you have the same current flowing through both.
GCSE Physics...
Each axis has a different mass and length of ballscrew, both of which affect the feedrate. So the same screw pitch on both will result in different speeds since other variables are still different. The resolution will be the same.
Your Y-axis is 600mm (?), so I'd still go for 10mm pitch on Y.
Why?
Same answer, but to put it bluntly if one steppers stalls when you have two on one driver then you can say goodbye to the driver. If one stalls with two drivers it's a bit annoying as the gantry is bent, but not the end of the world.
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