RE: Stuck filament detection causing filament to get stuck?
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I've been having success printing PETG after re-flashing back to firmware 6.0.1 until recently. Previously I had flashed to firmware 6.0.3 after Prusa Enclosure installation but it resulted in many stuck filament errors.
I am now getting only one stuck filament error in the same spot on every print of multiple different two-color parts. The error always occurs just as the first tool has finished the first layer and executes the first wipe pass in the wipe tower area. On the printer, this wipe pass has a 20-30 mm gap in it as the stuck filament error is detected.
Below is a screen shot of the g-code in PrusaSlicer 2.8.0 stopped at the point where the stuck filament error occurs every time (between lines 10986 and 10989).
I'm not a G-Code expert by any means but I wonder if making the width 1mm (comment on line 10985) is too much flow for the 0.4mm nozzle or if the G1 F12538 is too fast. Either way, I have no idea how to correct it. Any help is appreciated.
Try disabling it all together. I'm getting these errors all the time (also after latest firmware where it was automatically enabled again). After disabling it I haven't had a single problem.
RE: Stuck filament detection causing filament to get stuck?
I have the same problem with my new XL prusa and 2 extruders.
The first 5 days everything worked fine and now I get stuck filament during the extruder change but only with PLA. I have now increased the temperature of the PLA from 230 to 240 degrees and the error now occurs less often but unfortunately still too often, if I turn off the filament flow monitoring it ruins my print.
Strangely enough, the error only appeared after several days.Is there anyone here who has already found a remedy, which can be reproduced, unfortunately the support has not helped here, which is very disappointing anyway.
RE: Stuck filament detection causing filament to get stuck?
YESSS!!! I have spent the past 4 days with Prusa's online Tech Chat. My Printer worked perfectly for about 5-6 days. Then I switched over to PETG from PLA and about 3 hours into a 6 hour print the Stuck Filament error started happening on Extruder 1, I had to reload it at least 3 times then Extruder 2 started doing. The Funny thing is that neither one had any stuck filament! I was on Prusa Help Chat a total of 13 hours troubleshooting what's causing it. I know more about the Nextruder than I ever cared to but hey I can confidently dismantle and put it back together in a flash lol.
This has been driving me crazy because I invested in this because I was tired of constantly troubleshooting my other printers lol. Ironic I've spent more time on this printer troubleshooting than actually printing.
RE: Stuck filament detection causing filament to get stuck?
Adding to my message below. My filament stuck error is also happening in the same exact area with both toolheads! I am using 6.0.3 Did anyone figure out the cause or solution.. besides turning off the Stuck Filament Detection?
RE: Stuck filament detection causing filament to get stuck?
In my opinion the Stuck Filament Detection in XL is only partially working because it has too many false positives.
Furthermore, the false positives are very consistent in prints. Meaning they happen at the exact same point in the print when printing multiple duplicates of the same part.
I used it during a 20Kg filament project during this summer, with most parts sharing the same structure, and it would trigger a stuck at the exact same location in every part.
In my opinion the detection is too sensitive.
RE: Stuck filament detection causing filament to get stuck?
I guess I just don’t get it. Why does everyone continue to complain about the Stuck filament detection feature? I have an MK3S with MMU3 that is working just fine — because I just turned Stuck Filament Detection off in settings. I did this months ago because of the same problems everyone is complaining about, and I haven’t had a problem since.
RE: Stuck filament detection causing filament to get stuck?
Not everybody has problems regarding that function…in my case the function works great. I have real filament sticking and without that function the print would be unusable.
RE: Stuck filament detection causing filament to get stuck?
This feature works for me (twice) in a 40 hour print on XL. The problem is there is so much friction in the bowden tube it almost appears to be stuck. No more that 80 hours on that printhead/tube. Compressed air does not work.
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In my case the problem was that the nozzles were fixed to strong…the guide tube was slightly pinched an caused the filament stuck…that’s how I got it from factory…I got 2 new ones and all is working well now
