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Dual, counter-rotating steppers

Posted by RickRap

RickRap

Dual, counter-rotating steppers
March 04, 2016 03:40PM

Registered: 9 years ago
Posts: 79

I am experimenting with dual steppers on the y axis. The housings for these steppers will be mirrored so I will need to have them counter-rotating. They will be wired in series. How do I invert the wiring for rotation?

Edited 1 time(s). Last edit at 03/04/2016 03:41PM by RickRap.

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RickRap

Re: Dual, counter-rotating steppers
March 04, 2016 03:48PM

Registered: 9 years ago
Posts: 79

This happens too often.

I post something then come up with the solution.

I have a smoothie 5X. There are 5 drivers. I have

X-Axis (1 Stepper)
Y-axis (2 Steppers)
Z-axis (2 Steppers)
Extruder (1 Stepper)

Z-axis is pretty straightforward wired in series
I can use the 5th driver to power the other y-axis and simply reverse it in firmware.

done

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dc42

Re: Dual, counter-rotating steppers
March 04, 2016 03:50PM

Registered: 10 years ago
Posts: 14,672

See the other thread in which you recently posted for how to connect two stepper motors in series. To make them rotate in opposite directions, swap the connections to the wires to one of the coils of one of the stepper motors.

Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].