Drive manual_stepper with SYNC_EXTRUDER_MOTION

Feature request: I’d like to be able to sync any stepper, including manual_stepper's, to the extruder using the SYNC_EXTRUDER_MOTION gcode command. Currently, I can only sync steppers that are extruder_steppers.

I have not looked at the code to see if this is even possible. But then I don’t know Python so that probably wouldn’t help. xD

Is this something that could possibly be added to klipper in the future?

My use case is running a Prusa MMU2S with klipper. I’d like to sync the manual_stepper on the MMU2 to the extruder while it’s loading filament from the MMU2 to the extruder. This would allow me to stop the load once the filament sensor detects that the filament has reached the extruder.

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I would like to have the same addon… I try to synch my ERCF Gear extruder with my main extruder to help the filament to go through the tube…

if anyone have a solution to that I’m in. I tried to do another extruder_stepper with the same pin number by duplicate_pin_override but it is not working I still have an error message.