Stuck filament
I am running an MK4S (Prusa assembled and tested), inside an enclosure, and even added the lights and filter. I took the MMU3 out and am going straight to the extruder.
After a few months, I am having a terrible time with the filament getting stuck in the middle of a print job multiple times (staring about every hour to sometimes now every few minutes), to the point where I almost want to throw my printer down a flight of stairs. I get a little stringing, but not too bad.
I have a $2k paperweight at the moment. I always have to open the Idler Door to pull the filament out, then reload. I had some issues with the buffer, tried the unOriginal Drybox with autorewinder spools, and removed all that that for now.
I printed about 20 multiboard before when things started going down hill.
I have tried the following with no resolution:
- Increased PTFE tube length to ensure no bends or feed restrictions
- Changed PTFE tube to a different brand
- Changed nozzle (from 0.4 to 0.4 HF obsidian), worked for awhile, but back to stuck filament
- Changed filament (from Prusament PETG to Prusament PLA)
- Dried the filament (well below 20% RH)
- Removed and cleaned the nozzle with wire
- Changed print settings (0.2 Structural to 0.1 Fast Detail)
- Unenabled Ironing
- Changed from Satin to Smooth sheet (with PLA)
- Unchecked Stuck filament setting
I honestly don't know what else to do, short of a full reset and set of system checks. Putting more money into this doesn't feel like a good solution. I'm new to 3D printing (about 3 months), but surely it is not this difficult?
I went with Prusa over less expensive options given the large user community, upgrade path, and great reviews that I could find. I almost went with the XL using dedicated extruders over the MMU3, but that was a bit pricey for just starting out. I thought about the Core One, but at the time, it was unclear what was going to happen with the MMU. Don't get me started on the MMU - I don't have enough patience to troubleshoot that just yet).
Any wisdom or ideas would be most appreciated.
RE: Stuck filament
Unchecking the Stuck Filament setting is working for the moment, but I am unsure if that will cause other issues.
RE: Stuck filament
And it did. The filament stuck but the program kept running.
RE: Stuck filament
I have the same problem. Does anyone on this forum know of possible solutions?
RE: Stuck filament
I understand that you currently don’t use the MMU3, instead you go directly to the extruder from the filament spool. In that case, it sounds a bit like heat creep to me. The first thing I would try is to get the printer out of the enclosure and then run another printing test.
Please leave everything on “standard”, e.g. standard nozzle, standard print settings from Prusa Slicer etc. If that doesn’t help, please check if the nextruder is really fixed in the printer (ask me how I know).
Additionally, if the above does not work, go through a full reset.
RE: Stuck filament
Based on you talking about the Nextruder, I went searching for issues with it and found instructions on cleaning it on the PRUSA site and now I can print PLA, but PETG is still getting stuck. I am cleaning the nozzles and plan to use other settings based on a YouTube video for the PETG. Is there any other tips?
Thank you for your help!