Reusing a Bambu Lab extruder motor outside a printer — standard bipolar stepper or proprietary?

Hi,

I’m trying to reuse a Bambu Lab extruder motor outside of a 3D printer project, and I’m wondering if anyone here has experience with these motors specifically.

The motor is described by Bambu as a “36-series circular stepping motor” used for the extruder assembly.

I’d like to know:

  • does it behave like a standard bipolar stepper in practice?
  • can it be driven normally with TMC2209/TMC2208 drivers?
  • are there any unusual electrical or control limitations?
  • is there anything proprietary besides the connector?
  • has anyone identified the pinout/current specs successfully?

I’m mainly interested in understanding whether these motors are realistically reusable for custom robotics/CNC-style projects, or if they rely too heavily on Bambu-specific hardware.

Thanks!

u/fandegeo — 1 month ago