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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

Email support@sipersmechatronics.com with your purchase email, printer model, firmware version, selected tolerance, and a short video or clear photos of the failure.