Have an essentially brand new H2C, like everyone else, that is printing exceptionally well from the left nozzle but I cannot print anything from the right nozzle. Always get the extruder motor overload error. Have checked for clogs and there are none. The extruder is also clicking. Turned in a ticket and seem to be in support hell now. Have looked for info on adjusting tension of extruder on the H2C but found nothing. Any advise would be appreciated.
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Clicking means the gears are pushing the filament but it is stuck and not advancing. I have had this intermittent issue with the H2D as well. What I do is pull the filament from the machine and manually feed it in. Make sure there are no catches before it gets to the head. Often tubing is the leading cause or a broken filament somewhere in the flow. If the filament makes it all the way to the head and stops, then the issue is internal to the head. That could be anything from the nozzle to the feeder channels in the head.
Our past issues were all of the below at different times:
Bad tube routing, tubes not all the way seated inside the back of the H2D where they go into the filament buffer.
Swapped one of the filament buffers out on H2D - was not advancing filament correctly.
Swapped Filament Extruder Guide inside head - guide channel is plastic and over time glow PLA caused a bur on the entrance, filament would get to this guide and stop.
Now I keep extra filament buffers and Extruder guides on hand to swap out when needed.
Have you tried using a google search? This topic is very common, and I suggest to use a google search for plethora of answers on this problem.
Also, take the Bambu Academy classes and familiarize yourself with the Bambu wiki. Those 3 things will solve 99% of your problems.
Follow these steps here:
In my case it was a tiny bit of ASA filament (2mm blob) next to the gear before entering the lower filament guide of my toolhead (before entering the Hotend). Root cause: clogged hotend (just in my case, not saying it’s your issue). However, this guide helps finding it.
Thought I would give everyone an update on my issue. Remains unresolved but here is where it gets interesting.
Thanks to everyone that responded. I definitely learned a few tricks.
The problem is not with the extruder at all. I removed all PTFE and the nozzle. Fed filament directly into the extruder and everything works fine. Install a brand new never used nozzle, heat it up, direct feed filament again and failure. Repeat with a second new nozzle, failure. It appears the problem is that the induction nozzle is not aligning with the filament from the extruder. I have found no info around resolving the issue.
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I had a similar issue with the h2d, a plastic filament guide wore out in the extruder.
For your issue in consideration of the clicking: i would completely dissassemble the extruder, blow it out with compressed air, then reassemble it. It is possible there are shavings of filament mucking it up as the extruder will shave it down trying to feed it, pieces of ptfe also like to collect in the gears.
a miniute ago i had the exact same error…printed 60 hours with no problem but now im getting this message when using the right vortek nozzle… tried to reload filament but it didnt let me so i aborted the job…
then i unload filament and it worked…
i havent looked really into it but just tried to start another test job and it gave me the same error… will try again with anohter filament just to see… then i will remove the nozzle and will check…
edit:
ok after playing around a lil bit it works with another nozzle so it must be the vortek nozzle will try to use the needle…
H2D Nozzle/Hotend Unclogging Procedure | Bambu Lab Wiki.
man this is a pita… tried with the needle - the filament came out like single liquid drops… had to do it couple of times until i was able to do a cold pull… i hope it works now…
i hope the cheap geetech filament was responsible for it , im not in the mood to do this often LOL
one more question- when the sound is happenig from the overload - wich probably are the gears - can the gears or extruder get damaged from it?
Glad your issue was in the nozzle. Mine seems to be the extruder and Bambu is sending a new one. Not looking forward to that swap but will be nice to have both nozzles again.
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i hope it was the nozzle lol i only tried one small test… i will try again now but with the old filament…
u probably did, but did u tried another nozzle?
bambu is super cool when it comes to support i can only talk good about them ! they always helped me when i had a problem. i know it sucks to fiddle around but at least u know they got ur back!
Multiple nozzles, multiple filaments tried everything could think of. Sent pics to Bambu. Bambu decision to replace extruder.
Did changing the extruder work? My H2C has this issue repeatedly, on both hotends. Most prints fail because of it and I have already had at least 20 clogged hotends.
Yes. They sent me a new extruder and since installation I have had no further issues
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Wow. I thought it was just me. Im having ALL these issues with my brand new H2C. Left nozzle always works, but vortek nozzles are always clogging and failing. I cant even do a cold pull until i do a dance with the machine where the nozzle is semi warm, i remove the vortek nozzle and poke it from below to push out the filament, THEN i can do a cold pull. I cannot run TPU 95A in the right vortek nozzle no matter what. Constantly throws an extruder overloaded error. I see no obstruction in the extruder gears either. On my latest attempted cold pull the extruder couldnt even feed PLA in and just kept clicking. In a desperate attempt i pushed and pulled the filament and finally on my last push i felt it pop through and then everything fed and worked fine. My thought is that the filament is getting stuck on the filament guide whether its PLA or TPU. Although im not sure how this explains the issue happening part way through a print unless its because the guide is misaligned and causing drag.
everytime I think “man i love my h2 printers” the next day they breakdown.
OMG thank you for your message, I’m loosing my mind with the exact same problem but for now, and after 5 days of discussion with Bambu Lab support, they still don’t send me a new extruder. I asked them 3 or 4 times already, they tell me to continue printing and see what happen. Each time I have to use the right nozzle, the extruder is always overloaded or the AMS 2 feeder are bugging and clogging.
So as I can read, the solution is a new extruder system? (or gears only?)
So my problem was solved when Bambu sent me a new extruder. In the meantime, I received some OUTSTANDING advice and pointers from experienced users in here. One excellent point was to remove the PTFE tubes and both nozzles. Feed filament straight into extruder and determine if it feeds correctly. In my case it did not. If it does, problem may be elsewhere. You probably have already tried this but wanted to pass along this advise. Good luck I feel your frustration.
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Out of curiosity how long did support take to respond and ship the extruder. Im having similar problems and tried about absolutely everything. 16 day old printer
My apologies for taking so long to respond. It took about 3 weeks from start to finally getting everything resolved.
Incase someone else stumbles into this thread for the topic:
I had this error message when printing CMYK litophanes with the 0.2mm nozzle. I used sunlu “pla 2.0+”, and also tried with Bambu standard PLA. This error frequently happened for me on the white parts (the biggest part) during print. I could still just resume the print and it would complete without any visible errors, though its hard to say with litophanes how big of a degradation it was in the end. My first try must have stopped with this errors 10-20 times.
The detector for this seem very sensitive, what I noticed was that if the printed pice had a small area of layer separation, which can happen with litophanes as there are so many small details, it could get this error when printing over that part, I suppose it made sort of a stop directly beneath the nozzle during printing.
I solved it, or at least improved it (have had one error during two full 16 hour litophane prints after adjustment) by:
1. Reducing the volumetric speed for the filament to 1.3 (from 1.6)
2. Disabling the aux fan (the one on the left side of the print bed)
3. Increasing the hotend temperatures to 230 (from 220)
Note: Simply reducing print speed to 50% during printing, which I tried first, made no difference.
I tried your solution, but I’m still getting the same problem with the 0.2 nozzle. It’s infuriating.
I have a 1 week old H2C and just started getting the overload error. I did extensive troubleshooting making sure the buffer, PTFS tubes and filament is all good. Final test was to remove the PTFE tubes from the extruder and manually load filament and try to feed through, no go on both, will not feed and makes a clicking sound. I was abl eto keep hitting resume and it woudl eventually continue but no more! I have a ticket open with support but have not heard a peep, very frustrating for a 3k machine!!