I think by engaged they mean that it’s ready to go. I could be wrong but mine does not behave the way your saying yours does.
“Engaged to move the gears of the extruder” implies to ME that it’s ready to move, not moving, and will move when a command to move is sent.
Anyone have any good ideas for this fault that is obviously not isolated to a few.
My printer was fine until it stopped in the middle of the night. after chasing a fantom AMS fault I took the extruder parts off. All clean, all functioning. on reassembly7 I got a bunch of extruder fan errors due to the awful loose plugs on the P1S.
I checked resistances as per teh wiki and all reasonable,.
It just seems that the motor is either not being controlled correctly so its jittery or is not man enough to draw in the fillament.
Note that this is not a hot end issue, the motor is not even getting the fillament into the extruder wheels. if pushed it can sort of get there. If it was a power thing I would not expect jittering, I think its a control thing. Very disapointed as I have loads of printing to do and its all back onto my prusa. Anyone properly solved this rather that just off and on a million times until it works by fluke?
When I first got my P1S it worked great with the Bambu Filament they included, but when I used some Anycubic, I started getting filament jams in the extruder. After getting tired of removing the extruder and taking it apart to clear the jam, I researched into the possible cause and found adjusting the tension on the extruder to be the fix. I recommended to Bambu to include an access hole in the hot ends cover to allow easy access to the tension adjusting screw. Different filaments have different hardness and softness. If the tension is too strong it seems to crush the filament in the extruder if the filament is too soft and might also be involved with “heat creep” which can soften it additionally. I don’t know if it can cause stuttering. My 72 year eyes can’t focus on the extruder wheel while its moving.
I’ve found the bearings in the extruder need some love once in awhile. I pulled mine recently to clean and noticed the bearings had what appeared to be debris in them. Just spinning them in hand they were not smooth, especially compared to new.
I happened to have some bearings for a “wanna do” project that I’m never going to do, so I swapped.
Seems to not have hurt. I wasn’t having any real issues but I know they were on the way if I left them alone. The bearings could have been cleaned and lubricated but since I had some, why bother.
Take a look at the two. May be worth it.
Although I started my own thread about the issue in the A1 mini forum, I found this thread here during my research. I have recorded a video of my machine doing this here and I’d love to know if that is the exact same problem described here?
My guess is, that it is due to a clogged nozzle. Can this be the case? The printer is brand new (3 weeks) so I doubt that the motor is damaged.
Ok i know i’m super late to this thread but i think i found a solution. at least for me. After 1100 hours of printing with zero issues i suddenly had what i thought was a clogging problem or heat creap. but after replacing hot ends and extruder gears and taking everything apart and cleaning everything and putting it back together, I thought to try and print something without the AMS and it worked flawlessly. So I started looking into the AMS as the culprit and cleaned out that whole thing and replaced all of the PTFE tube in the AMS and everywhere else just to be sure. I havn’t had a problem since. Let me know if this helps anyone else.
Also late to this thread but have a similar issue with my X1C. No audible stuttering or skipping, but when I help push the filament in to the PTFE inlet on the back of the X1C (with AMS disconnected), I get significantly better extrusion (without it I get almost no extrusion). I have a theory that this is due to ‘slippery’ filament - I’m printing silicon carbide from Virtual Foundry. Next steps are to check for free-spinning black gears. Will keep you posted.
Checked the feed assembly and found everything to work as expected (with slight gunk that really didn’t impede the spinning of the assembly).
After taking apart all PTFE tubes and ensuring free movement of filament, I finally figured it out:
The filament I am using had reduced from standard 1.75mm to 1.5mm over the span of the reel. This had two effects - the first is that the printer thought it was printing more material than it actually was. The second is that the spring force on the opposing filament gripping wheel was not sufficient with the smaller diameter - resulting in slip. Solution is probably to yell at the filament manufacturer to tighten their tolerances.
Hopefully this helps someone before they take apart and reassemble their entire printer.