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Heads up, a major MechAMS update is landing end of August with new pricing and better support. You might want to hold off buying until then.

Support

Troubleshooting

Start with the mechanical fit, then confirm slicer and G-code setup. Most failures come from tolerance mismatch, friction in the filament path, or stale slot coordinates.

Filament change fails or picks the wrong slot

  • Regenerate G-code with the current slot count and measured X positions.
  • Confirm the MechAMS change-filament G-code is pasted into the printer preset, not the filament profile.
  • Check that every PTFE tube enters the toolhead cleanly and does not drag against the mechanism.
  • Verify the parking height before running a print with tall geometry.

Parts bind after printing

  • Start with the 0.20 mm tolerance files.
  • If parts bind, move to a looser tolerance variant or add positive XY compensation in small steps.
  • If parts feel sloppy, move tighter or reduce compensation.
  • Reprint only the affected part after each change.

Printer reports filament not loaded

  • Check the sensor magnet orientation in the MechAMS toolhead.
  • Confirm the sensor board and cable are seated before closing the toolhead assembly.
  • If the signal drops mid-print, pause safely, park the toolhead, and re-seat the magnet before resuming.

Still stuck

Create a support ticket with your purchase email, printer model, firmware version, selected tolerance, and a short video or clear photos of the failure.