H2D PETG-CF Sagging Bridge

Bambu Lab H2D Troubleshooting
1

I’ve been messing with this printer since day one and I can not for the life of me get it to bridge using Bambu PETG-CF. I have a small recess for an M3 lock nut. The top flat part is only 2mm wide. The new printer will not span that bridge without the filament drooping, making it impossible to insert the nut without manually modifying it.

Side note, I also have a P1S and X1C. In Bambu Studio 2.0 I noticed the same thing with my P1S, but not with the X1C. I installed version 1.10 and that fixed the problem with my P1S. Now I have two versions of Bambu Studio installed on my computer. Very annoying! So this could be an issue with the slicer, not the printer. I compared filament settings and printer system presets between the two versions, and can’t see any differences.

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2

Did you get this resolved? I’m also curious if this was with the right nozzle or the left nozzle. Lately a few of us have noticed that there is a lot more cooling with the left nozzle than the right. At least when you manually turn it on.

3

No, I did not. I contacted Bambu and they suggested it’s a problem with moisture. I have a P1S and X1C. The filament prints perfect in both of them. I’ve also gone through probably 30 rolls of PETG-CF and have never had to dry them before.

I’ve tried it in both nozzles without any change.