Recommend getting some eSun cleaning filament and running it through every time you change from one filament type to another i.e. from PLA to ABS to PETG to CF etc.
Also, check your extruder fan is actually turning. It’s possible to have it not connected correctly, it won’t be running and it also won’t bring up an error.
Is there something else odd leading you to look past the extruder malfunctioning? Personally, if I had a problem with consistent jamming of the extruder, I would start with a new extruder assembly. If a stiff filament is getting jammed, I’d look at the plastic openings and look for abnormal wear. Also, if you didn’t upgrade the hardened extruder parts and used a reasonable amount abrasives (wood, CF, glow in the dark, etc) it might be as simple as replacing those parts.
The only thing that leads me to pause on replacing that is that its only happening on this filament. I would assume that would be the case for all similar filaments.
Its also possible that brand of filament is a little smaller and is being damaged more than others, leading to a jam. See if you can feel a difference in the gripping of the filament once its loaded. I do caution on this though, because tugging on the filament, when loaded, can create problems too. Might be easier to simply measure the filament thickness. See what that tells you.
i had the first clog up aswell today with original BambuLab ABS TWICE right after another… i used Bambu Lab ABS today the first time, printed alot befor with other ABS and Pla etc and never had this weird problem. So the Clogup was so sevier that i also had to disassemble the head to remove the filament manually because it wasnt moving anywhere, not even pulling as hard without breaking anything wasnt helping so dissasembling was the only option. The Filament got stuck in between the upper part of the hotend and the end of the extruder and sort of formed a “disc” bigger in diameter than the diameter of the hotend or the headbox. i have no idea how this actually happens twice in such a short time because it definetly doesnt have anything to do with the filament it self or a printing malfunction. My guess is some problem with retraction, maybe too much retraction or whatever resulting in a deformation and the a clogup but i seek your help my people. Telling from the print result this problem definetly occurs when the printerhead moves to the next printlocation. So retraction is in the game. I didnt make a picture of the clog up unfortunately because i havent disassembled it again but the current result ist the same. Hope for you have some sort of solution in the printsettings or whatever, i cant figure it out
You bring up a good point, how far off the stock Bambu settings are you? And have you tried using the Bambu ABS profile or the Generic ABS profile to see if that addresses the issue?
Next time you’re able to get the extruder to pass at least some filament, maybe try using a cleaning/purge filament to get rid of the clog?
I bought some of this once to use on a different printer. I still have most of i. It lasts a long time because per use you don’t need much of it.
Or maybe run an abrasive filament and hope it grinds the blockage down to nothing? Or maybe there’s something which can act like a dental floss for your extruder-hotend pathway?
Or maybe disassemble and soak the parts in acetone or something even stronger to dissolve the clog that way? Old school brake cleaner maybe? It would help if you had some idea what the clog might be composed of so you could pick a suitable solvent.
Thanks for your tips. However, I have already tried all of the points you described, including a completely new hotend. I completely disassembled the extruder after each blockage. The gears are all in perfect condition. I swapped the slot in the AMS because there are already problems with the third one. I opened a new roll of ASA from the same manufacturer. I measured the diameter of the filament to the hundredth. Everything I can see is ok. In addition, all other filaments are printed perfectly. Also a different ASA. I think there is something wrong with the batch of filament.
Since yesterday I have an E3D hotend and I will try it again.
As far as my problem is concerned, I use the generic ASA profile with the temperatures specified by the manufacturer. But if I hadn’t already used about 8 rolls of this filament for the exact same model without any problems, I would also assume that some setting needs to be adjusted. But it worked, I know it.