The Prusa CORE One, and the Original Prusa XL, MK4/S, MK3.9/S are equipped with a loadcell. Thanks to this component, starting from firmware 6.0.0, the printer can detect whether the filament is stuck and not moving, for example when the nozzle is clogged.
If this is detected, the print pauses and the printer shows the message: "Stuck filament detected. The filament seems to be stuck. Please unload it from the extruder and load it again."
Once the unload button is pressed, the printer unloads the filament. After this, it prompts filament loading and resumes the print.
Repeated detections
Loadcell troubleshooting
In case of multiple, repeated stuck filament detections in rapid succession, troubleshoot the loadcell and the components around it, using the steps in the dedicated loadcell troubleshooting article.
Temperature and speed settings
If loadcell troubleshooting does not improve the multiple and repeated detection, consider slight changes to temperature and slight reductions in the movements and extrusion movements. Those can be set individually through PrusaSlicer, or in a single print speed setting, mid-print, using the Tune menu.
Deactivating the detection
It is possible to deactivate the stuck filament detection in LCD Menu -> Settings. Deactivating the detection comes with an increased risk of nozzle clogging.
27 comments
PRUSA YOU NEED TO FIX THIS111
It's very troubling that Prusa has not addressed this problem and taken corrective action. With the increasing competition from other vendors, failure to address and correct widespread problems will cost them customers over time.
It doesn't matter how many cool features they add to a new product it must be robust and reliable in its operation.
I have the MK4S with the original enclosure and I seem to encounter this issue everytime I try to print something.
I'm very careful when handling the spool of filament and I really don't know how to solve the issue.
Does anyone have an idea to help me ?
Thanks in advance.
It prints the first color, first layer just fine. When it starts the second color it tries to print the wipe layer but stops and gives me this message.
I've loaded the second extruder with filament and it pumps out filament just fine.
I've tried tightening the nozzle screw but it's good and firm.
If I print to the second extruder it seems to fail about 50% through, with the extruder clicking.
The guy I got it from is not available at this point, not sure if he knows the answer anyway, so here I am.
Is there something special I need to do to do a two color print? FWIW - I have an MK3+MMU2S on r and have lots of multi color experience. So this is my first time riding an XL in this rodeo. ;-)