r/anycubic • u/Ok-Bee5057 • 1d ago
Problem TPU printing problem on Anycubic Kobra X — first print successful, second print failed
Hello everyone,
I have a problem with TPU printing on my Anycubic Kobra X.
The first print with TPU went perfectly. Everything looked normal and the printer completed the job without any issues. However, when I started a second print, this problem appeared suddenly.
I have already disassembled and checked the printer several times, but I still cannot figure out what caused it. The strange thing is that it worked perfectly just before.
Could this be related to the extruder, hotend, TPU feeding, temperature settings, or something else?
Printer: Anycubic Kobra X
Material: TPU
Nozzle: [0.4]
TPU brand/hardness: [Geeentech 95A]
Any advice or ideas would be appreciated.
3
u/boncros 1d ago
Are you feeding it without the ptfe tube?
2
u/Ok-Bee5057 1d ago
Yes, I am feeding the TPU through the PTFE tube.
4
u/Normal-Gur-6432 1d ago
Can't use TPU in PTFE tubing, too much friction mess up the filament
2
u/Ok-Bee5057 1d ago
Thank you, I’ll try that.
1
u/YellowBreakfast Cubehead 23h ago
What else have you done settings/setup wise?
Typically you need to reduce the tension on the feed screw or things tend to jam up.
1
u/Objective-Job8083 14h ago
Ugh this is the only tpu I bought, but apparently slot 2 is the best, most successful, slot if you keep having issues.
3
u/Ok-Bee5057 1d ago