FAQs
Short answers to the problems that come up again and again on Bambu Lab and Voron printers.
Bambu Lab3
AMS feeding failures
Six causes of filament shuttling back and forth or asking for a retry, from a frayed bowden clamp to a blunt cutter.
OpenCleaning an AMS that flashes red
A full strip-down and clean of the AMS feeder internals: the tools needed, what to watch for and the reassembly order.
OpenCutter stuck on the X1C
Usually filament in the hotend: heat it to 250C and push it through.
OpenVoron5
Unusual layer shift causes
Five less documented causes of layer shifts, from dry rails to lead screw play and belt similarity.
OpenMellow 5160 drivers sensorless on an Octopus Pro
Jumpers, ribbon orientation, starting SGT values and the TMC commands that prove the drivers respond.
OpenEBB36 motor wire order
Pulled the wires out of a motor connector? The colour order for an LDO NEMA14 on a BTT EBB36 v1.2.
OpenLevelling a Trident with a probe
PROBE_CALIBRATE with paper, then a thin scaled cube and live Z adjustment for a perfect first layer.
OpenLevelling a Voron 0 without a probe
BED_SCREWS_ADJUST with paper, then a thin cube and live Z until the first layer is right.
Open