The PTFE tube between the AMS and the printer came loose. The AMS just kept pushing filament out. I hit the “Power” button on the front of the Bambu. Nothing. I hit the mystery button (it looks kind of like a red recycle logo???). Nothing.
The only thing I could do to make it stop was turning it off hard with the switch in the back. Shouldn’t there be an easier way?
The buttons on the top… don’t do anything. Power switch on the back is really the only way.
Just grab the filament where it’s coming out and stop it. The ams will sense the load and stop feeding and then it will retract it all back in since the extruder sensor wasn’t triggered.
This happened to me not long ago. Forgot to put the tube back on the back of the printer and didn’t realize till I heard the ams and thought ”why is it loading for so long”. lol.
Those paranoid looking buttons up top, they’re the ikea display toilets of the 3d printing world. Bumping the back switch if handy or pulling the Buffer exit PTFE fully out stops the flow. Cut a few mm off the PTFE so its clean, also may be worth giving the connector a test by tugging the tube once refitted. They are renowned for breaking and this may be an early warning sign, you can’t buy them separately Replacing the pneumatic connector (PTFE Tube Coupler) | Bambu Lab Wiki
One wonders why they are there then.
If you grab the filament, yes, it will retract all the filament… And then immediately start pushing it out again! At least, that’s what happens for me.
Yup, one does wonder that.
X1Plus which is the 3rd party firmware has added features that allow you to select more option of what these buttons can do.
The PTFE coming out of the printer had shifted towards the printer, so that not enough was sticking out of the rubber cover to grip. I was able to push it back from inside the printer after removing the little retaining clip on the inner side.
Yea it’ll try again, but you’ll have a chance to hook up whatever fitting you missed before it starts. Or just cancel the print as soon as it gets past the exit point.
In my case the printer was off for hours, I went to work on it in the back and noticed the filament was still in the line. I disconnected the line, at the buffer, and it started puking out filament. I held on to the filament to trigger a retract but it would not stop pushing it out. A power switch was the only way to get it to stop. This was the 3rd time this has happened in the last 30 days. Maybe an update glitch? I did a factory reset after the first time, guess that didn’t take.