My prints deteriorate following an overprinting

Bambu Lab X1 Series Troubleshooting
1

Hello all,

I don’t manage to troubleshoot my print issue on my X1C, here is the situation:

My printer was working very well until I launched a print over another part still stuck on the plate :man_facepalming:

  • Since this day, my prints are weak and crispy
  • I already cleaned the nozzle and the teeth of the filament extruder
  • I also tried to redo the flow calibration again and again
  • I tried to increase the flow ration

Nothing helps…

I use regular frozen white PLA from formlabs.

I’ll appreciate if you have any lead which can help me

Thank you guys

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2

Did you re-run the printers calibration?
Check that nozzle and make sure it wasn’t bent. Even a small bend will cause issues.

3

Some how it looks like the sample filament “support for PLA/PETG/ABS” that comes with x1c. I tried to print in PLA profile by mistake and it came out nicely, but shortly after that it fell apart like knitted jumper turned back into lengthy yarn. Turn out that support filament was kind of alloy from HIPS apparently.

Have you tried to increase temperature, say 220C to 250C or higher? Addictive-like figment does change some temperature property of the filament

4

I already factory reset the printer and do all the calibration again, but the issue is still remaining.

I also tried with a brand new nozzle, it was better during the first prints (not as good as before but acceptable), and degradate gradually…

One thing I feel, is the faster the print go, the worse the quality is.

Maybe I have to try to print more slowly

5

It’s not support PLA, it’s basic PLA, The printer was working very well during one entire year with the same PLA, I don’t think the PLA is the issue

I will try to heat up the nozzle :+1:

6

I’d suggest to run through the recommended maintenance, in particular cleaning and belt tensioning as well as re-cleaning the extruder and replacing the nozzle. Then re-calibration, cutting the front 10cm of the last filaments and see if things are back in order.

2 Likes
7

I did the same thing once and it bent my hotend. Do you have another hotend? Maybe your got bent slightly like mine did and its causing a slight jam during the filament extrusion. I would just replace the entire hotend with a new one. They are like $15. Also I would do a belt retention procedure. Maybe it caused the belt to jump teeth. When doing it make sure the gantry hits the back of the print on both side at the same time.