10 hours in print fail H2s

Bambu Lab H2 Series
1

I ran into an issue I wasn’t expecting. I was in a 11 hour print, at hour 10 i checked the cam and saw it wasn’t extruding anything. I checked on it, and there was a knot in the filament. Its a fault in the filament, not the H2S, but I have had a previous printer that as part of the runout sensor tracked filament movement. Is something like this available for the H2S? I doubt there is, but any suggestions? It was AnyCubic filament if that matters.

Thanks

2

It is possible that the motor kept turning and as the filament existed in the sensor, there were no indications of a problem.

Printers can only rely on sensors.

  • If there is filament, the filament sensor will not indicate a lack of filament.
  • If the feed motor still manages to spin despite the snagging filament, it is unaware of a problem.

Your previous experience with a different printer may not have reacted exactly the same, thus a different outcome.

The filament itself is unlikely a factor other than the cause of the blockage.

3

Were you printing from an external spool? The AMS will tell you if there is an issue feeding. It will pause and let you attempt to fix it.

4

Yes it was the external spool. The AMS 2 PRO and AMS HT are currently not getting along with the printer. Waiting on a replacement buffer from BL. I was hoping to hear the AMS had a similar feature. Finger crossed i can get it working again.