I have a dual extruder module that doesn’t seem to want to do anything when it gets to the Load/Unload Filament stage. It goes through the calibration fine, and hot-end heating, but then doesn’t do anything when I hit Load Filament or Unload. No sound, no movement of the gear if I open up the fila…

https://snapmaker.formcrafts.com/support-ticket You can submit a ticket at the same time in case the technical staff or fellow users in the forum don’t respond promptly.

Seems your controller has a bad toolhead port. This could be a workaround: [image] Filament gears not moving Snapmaker 2.0 (3-in-1) Try to reroot the toolheadport with M1029, have a look here: https://snapmaker.github.io/Documentation/gcode/M1029 Unfortuna…

Wonderful.. it still seems off that parts of the module work, as noted by someone else that the laser module still worked. I don’t see how the lack of steeper motors would make a difference - the thread port is only a 2-line electrical protocol, I assume I2C?

Dual Extruder (A350) won't do anything when trying to load?

Snapmaker 2.0 (3-in-1)

xchrisd March 9, 2026, 7:16pm 3

Seems your controller has a bad toolhead port.
This could be a workaround:

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Dual Extruder (A350) won't do *anything* when trying to load?

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Dual Extruder (A350) won't do anything when trying to load?