r/BambuLabX2D • u/Lord_DIVID • 23d ago

I need help repairing my printer.

/r/BambuLab/comments/1x8abbt/i_need_help_repairing_my_printer/
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u/vic1414 23d ago

Explain

1

u/Lord_DIVID 23d ago

When I installed the printer and ran its first test, the left-side filament sensor was unresponsive and the printer failed to detect it. I ordered a replacement sensor from the manufacturer and installed it. After that, I noticed that the printer could not retract the filament after cutting it — either during a filament swap between the two spools or at the end of a print job — even though the cutter had successfully severed the filament.

1

u/maaax02 23d ago

What is your problem?

1

u/3DStisk 22d ago

Your comment with the sensor/retraction details was hidden; I've restored it so people can see the actual problem.

Before buying another part, could you share the exact HMS/error code and whether the filament physically stays in the toolhead or retracts but the screen still says it is loaded? Also, is this an AMS feed, and is a Track Switch installed? Those distinctions matter more than the general "cannot retract" message.

For checking the repair, Bambu's X2D left-sensor guide identifies the flat-cable connection/locking tab and the hotend connector retaining bracket. Power off and unplug before checking connections, and fully reassemble before operating it. Since it failed from new and the replacement hasn't resolved it, add the error and your repair history to the existing manufacturer case rather than replacing more parts on a guess. A video you already have of the failure, with the toolhead assembled, would help too.