So my prints were failing to extrude filament partway through prints. So I replaced the entire hot end nozzle and took apart the extruder. No jams or any obstructions. At first I was only having this issue with coex nylex but I just received a roll of bambu lab pa cf which I’ve been excited to try, and partway through my print it fails to extrude. It’s like it just stops grabbing the filament. It doesn’t clog or jam, but the printer doesn’t seem to detect this failure.
If it’s not the hot end, and I took the extruder apart and found nothing, what else could be the issue ?
I tried to buy a replacement extruder but they are all sold out. Haven’t been able to use my X1C since this
I printed Tpoimns Petg seveal times and then the same print i switched to California Filament and 3 prints in a row failed as the materal jamed. Went back to Tpoimns in AMS and I’ve had may successfull prints. Maybe try the Tpoimns on a glue sticked Engineering plate. Rub glue all over and spray with windex and finger a even slurry all over the plate to season it. Not too much windex.
I had the same type of issue and ended up replacing the whole extruder. haven’t had the issue yet. If you look in Studio at your extruder, is the light grey or green? If you have filament in it should be green. if it is grey, you need to replace the extruder. I replaced mine and never had the issue again. When i took apart the old extruder, i could not find a reason why it wouldn’t be working correctly other than the magnet on the filament sensor.
If that is the case where you have filament in and the light is grey, Make a trouble ticket, they will send you a new extruder.
Though not the same situation exactly, I’ve had similar issues with my extruder - failing mid print due to the extruder appearing loose grip. For me, it almost exclusively occurs when printing abrasive filaments but also with ASA/ABS.
After a recent failed PACF print, I was unable to extract the filament out of the extruder and back to the AMS. Upon inspection, I found most the open volume inside the extruder has been filled with loose filament. This is something I’ve seen before on other extruder but only when using a flexible filament, never with something as stiff as PACF… A hour of picking/pulling/cutting/trimming/prying later, I was able to clean everything out.
This has happened to me 3 times now and Bambu is shipping me a replacement. Because I knew a replacement was coming, I decided to do a compete tear down on the last extruder jam, going as far as to press out all the gear shafts and bearings. Still having issues.
I think my issues are due to an slightly askew filament path through the extruder but that’s just a guess.
Ive had another issue that keeps repeating, Ive 4 X1C printers with AMS and in 3/4 Ive had the filament getting stuck in the extruder due to the extruder overheating. Print fail as it cannot extract the filament… open extruder, clear it and same thing again… its become a very problematic issue… still, I love the printers - just hope there a solution for this is on the way…(with ABS)
Well I’ve taken my extruder apart several times and each time it was clear, nothing obstructing it. I’ve been communicating with the bambu support but they refuse to send me a replacement extruder. In fact I haven’t heard back from them for a week. I bought this printer specifically to print pa cf nylon and I haven’t even been able to print nylon on it for 3 weeks now. Pretty upset with their customer service. Especially since the extruder is still under warranty but they won’t replace it. They’re probably waiting for the warranty to expire and then make me buy a new one. Very shady business practice.
Had the same problem but it was saying there was stuck filament when there wasn’t. Turns out the little metal switch inside the filament mag sensor was sticking on the side of the casing where it activates. So when it caught it told the machine it couldn’t unload filament . Solved it now by removing swarf from the side where it was catching and making sure nothing cold catch it. May need a design change and chamfer the lead in on the sides.
Thanks everyone for this thread. I’ve just experienced this happening today, after testing various files and filaments I decided to look it up. 1am, so I will disassemble Number Five in the morning
I am having this issue as well, but for me it is a filament diameter issue. It seems to happen most for me on PETG. The diameter of the filament is just a little too much to make it through the neck of the extruder, and gets stuck. It might happen immediately after inserting a new roll of filament during a filament change, or it may happen mid print. There is no switch or sensor on the Bambu X1C to let it know that filament isn’t moving. (Not that any other printer has it by default either, I know there are some SMART sensors for detecting a jam.)
did you solve the problem? I have the same problem since yesterday. The X1 no longer recognizes filament. I’ve already swapped out the extruder. Of course I checked for contamination. Even if I manually load filament, it doesn’t recognize it.
I’ve been trying to print with my Bambu lab X1 carbon but it recently stopped extruding. A grinding/clicking sound could be heard when it tries to extrude, but nothing comes out of the hotend. I relpaced the hotend, so that is not jammed, and I’m not sure how to go about checking the extruder. Any help is greatly appreciated.
Hey there, as a general rule for this and any forum you’re better off starting a new thread describing your problem rather than tacking onto an old (possibly unrelated) one. But I also realise this is your first post, so you probably weren’t able to start a new thread.
I’ve had similar issues previously and would suggest you just dive into removing and taking apart your extruder. There are other things you could try, but if you’ve already swapped out your hotend, the extruder is likely jammed.
I’m sure there are some wiki tutorials which you should definitely follow, but once you’ve removed the hotend, remove the ptfe tube (hold down the black collar) take out the 3 screws holding the extruder in place and remove.
There are a couple more bolts to take the whole extruder apart, it is very likely, given what you’ve described, is that you will find a partially globbed up bit of filament in the exit hole.
If that doesn’t work, I suggest you reply to a few discussions and your account will automatically be upgraded and then start a new thread.with your specific problem
I appreciate the help and advice. I have since taken apart the extruder and found it completely clear, the only thing I can find wrong is that the yellow gear will not turn, and it acts as if it is stuck.
@amstutzjoel0 I had the exact same issue, I have a brand new machine that started doing this the same day I got it.
The issue turned out to be a piece of filament wedged semi sideways in the mouth of the hotend (the part held at the bottom of the extruder with two screws).
I fixed it by taking the hotend off it’s screws and holding it with gloves by the heat sink and heating it to 220 (didn’t need gloves). Then I used the provided needle to poke up through the nozzle and remove the filament.
