I hope someone can help me understand the issue with my X1C printer. I’ve had the printer for less than a year and have completed several dozen prints using AMS. Everything was working perfectly until, one day, the nozzle became clogged out of nowhere. I followed the recommended cleaning procedure and tried printing again. The first layer printed correctly, but the nozzle clogged again shortly after.
I decided to replace the nozzle entirely, thinking this would resolve the problem. Initially, it worked well, but after a few minutes of printing, extrusion issues reappeared, and the nozzle clogged once more.
At this point, I replaced all the tubes from the AMS to the nozzle, installed a new nozzle, and tried again, but the problem persisted. I even attempted printing without the AMS, but the same issues occurred. When performing manual extrusion tests, everything seems to work fine, and the filament is being pulled correctly.
During some prints, the first two or three layers appear to print well, and when printing in two colors, the first color sometimes works fine, but the clogging reoccurs after the color switch. Additionally, there are times when the entire print is completed, but the layers are poorly bonded and lack any structural strength.
I am using Bambu Labs PLA filament and have always used the default settings.
At this stage, I’ve exhausted all options. I’ve completed all calibrations but still can’t achieve a successful print. Does anyone have any suggestions or ideas on what I can try next?
Some examples in picture and model profile would help. If you can include some photos of bad prints and the .3mf file that goes with them then people will have an easier time helping you with this issue.
You are printing with the top or door open correct?
Printers that work well and then don’t print well is how moisture can behave. Many see spitting and clumping but clogging can also be a symptom apparently.
You might want to provide details on how you dry filament and if you dry filament. And if you are running an AMS, what is the humidity in there (what number is in the drop icon). Has your weather gotten cold and/or humid recently?
I took some time to conduct additional tests to troubleshoot the issue. At this point, I have already tried replacing the entire print head, changed all the tubes that connect to the AMS, attempted printing with and without the AMS, dried the filament, used new filament and dried it afterward, and even used cleaning filament. I am at a loss for what to do next.
I have considered replacing the extruder, but it seems to be functioning well, as it has enough force to pull the filament even when I try to hold it back by hand. It printed perfectly for months, and then, from one day to the next, it stopped printing.
I hope you can see the photos below of the most recent prints.
Might need a bit more info, it is always good to include the .3mf so we can see the model and all of the settings, also sometimes its a paid file so just include some screenshots of pertinent data (non-default settings, filament type and settings and screenshots of the model in the slicer so we can tell how it is supposed to look).
That said it looks like a partial clog in the nozzle or bad thermal paste job. If its the extruder or something behind it I would think you should hear that, slipping of the gear on the filament, but alas, I’ve never had such a problem so cannot speak to it.
Everything in front of the extruder is suspect imo, that and the dryness of the filament. Your original description suggests AMS filament changes may relate to the issue, but the pictures are a single color print correct?
If I were you I would start with >>> Right click the plate, add primitive>Bambu cube (or 3d benchy). Do one in black and then do one in another color you have, heck even go for a third color and report back results, each color should come from a different slot AMS 1-4, External. Perhaps the black is just borked and constantly clogs your nozzle. Do manual extrusion tests between each print to make sure no clogs appear to have developed.
I’m having the exact same problem, and its somewhat intermittent. It happened a month ago or so. I checked the extruder, serviced it, replaced the nozzle assembly, etc. Then it suddenly was ok. Then yesterday its back. Checked the extruder, cleaned some minor PLA dust out, put it all back together, and am having the same problem.
The first couple of layers have been being good. It seems to happen with faster extrusion rates on infill layers.
I am
Having the same problem. I have had my printer for 4 months and no problem. Suddenly, filament jammed and I had to take it apart. It worked and then it jammed again. It pulled the filament all the way in and then it gets stuck in the horned. Maybe have to replace the hot end? I can’t figure out hot to start a new thread….
