The Duet Expansion Breakout Board is for Duet3 MB 6HC
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Duet3 MB 6HC can't output control signals for the stepper motor, like as EN, STEP, and DIR. In the future, Duet3 MB 6HC can use CAN bus to control the expansion board and output 6 sets of EN, STEP, and DIR (X, Y, Z, U, V, W) signal at least.
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@Jimmykc An external stepper driver board is in development, just taking a bit of time. See https://forum.duet3d.com/post/150706
Ian
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if you're in a hurry and wanna do a little DIY ref
https://forum.duet3d.com/post/155634
