New X1C - Extruder won't pull filament, get error

Hi, just received my X1C and already having problems.

Got everything set up, did the calibrations, loaded some Bambu PLA basic in the AMS and attempted to print the internal Benchy model.

Filament will load all the way to the extruder then stop, reverse the filament and do this 4-5 times. Then the “Failed to extrude the filament. Please check if the extruder is clogged.” error message pops up.

I’ve taken the extruder apart and see nothing wrong. Hot end is clear as well.

Not sure what to try next. Disappointing to have a brand new printer fail right out of the box.

Any help is appreciated. Thx.

A quick check is to load filament not from the AMS, but from the rear spool holder.
That should help to localize the problem.

Usually, the AMS is pretty good, but sometimes there can be a number of issues (filament catching on couplers, accumulated friction with tight bends, filament tip expansion due to heat creep,…).

Also, and I know this sounds really stupid and condescending but is in no way intended that way, try rebooting.
The number of problems solved by either rebooting/restarting (printer, Studio) or Bambu Handy De-installation/re-installation is quite impressive :wink:

I hope its nothing more serieous.

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Hey Eno,

Thanks for the reply. And yeah, already tried printing from rear spooler to make sure it wasn’t the AMS. Same results. I also did a reset of the printer and recalibrated it. I have some other filament showing up tomorrow and will try that.

Wondering if I just have a bad extruder.

Argh, that does sound more serious.

Some people had issues with the extruder filament sensor

While reasonably easy to fix, it’ll take some time to open a ticket and get a replacement (in case this is indeed the problem).

Fingers crossed for you :crossed_fingers:

Is the nozzle heating up properly? I’d try removing the PTFE tube, manually heat the nozzle up to 230 or so and then see if you can manually draw in a piece of PLA filament through the extruder (use the extruder buttons on the screen). If you can, this will rule out the extruder and nozzle and then you can work back from there if it still has problems.

Thanks, RMB. Pretty sure it’s a broken extruder. The yellow and black gears (on the same rod) move freely from each other. Don’t think that’s right.

No that doesn’t seem right. I haven’t looked at my extruder gears as I changed mine for a complete hardened set but the knurled gears are usually held on with a grub screw which tightens against a flat part of the shaft. It’s likely loose.