Hello! I was running an overnight TPU print (17 hours) and this morning I received the reassuring Print Success message on my phone. When I came to my workshop I realized it was only half way done. Timelapse video shows the printer completing the job, but at one point no filament is coming out of the nozzle. I suspected a clog, but it turns out the manual feed buttons are unable to cause any reaction in the feed motor (either way and of course with the nozzle heated). Dead silent. I suspect that the feed motor or motor control has failed without the printer noticing? Or could it be something else? Best regards, Esben
Hey, today same problem here, even on really small PLA prints (~1hour). We launched 3 times the same file to get 1 piece complete, 2 time another and no success… it seems to stop extrusion at same z on each file. False print success all the time even with the fail detection on “High”.
The printer has one week… after one week the fail ratio is really high for such a printer I think. Today . 12 print attempts and only 3 success. Same problem each time the extrusion seams to stop.
Is it a known problem ?
In my case the filament had jammed in the sensor above the drive wheels, probably as a following error of a clogged nozzle. Took it apart, got things out. I also cleaned up the nozzle by inserting a hot allen key into the top side of the nozzle, and then heating the nozzle while pulling out the remaining TPU. It was fine after that.
But you might have a different problem since the nozzle does not seem to be clogged or blocked in your case. I was not able to get the filament eiter out or in, it was jammed both ways.
I got help from Bambu support; it took a couple of days before they replied but from there on communication was swift.
regards, Esben