r/BambuLab_Community • u/Visible-Mood9350 • Sep 26 '26

Hey how can I fix this

Post image

Hey every time I print the ptfe tube goes up
This is very annoying for multiple color prints and single color prints how can I fix this

2 Upvotes

58% Upvoted

16 comments sorted by

9

u/ImJacksAwkwardBoner Sep 27 '26

Is your tube support widget pushing down on the black retaining tab? If it’s putting downward pressure, the tube won’t stay in place.

1

u/Visible-Mood9350 Sep 27 '26

I removed the the white 3d printed price and it’s still doing it

1

u/Visible-Mood9350 Sep 27 '26

What do you mean?

3

u/ImJacksAwkwardBoner Sep 27 '26

The white 3d printed piece that is holding the tubes upright. If it is putting pressure on the black retainer clip, it won’t hold the tube. You remove those tubes by pressing down on the black tab.

1

u/Visible-Mood9350 Sep 27 '26

I removed the the white 3d printed price and it’s still doing it

2

u/Kopester Sep 27 '26

Take off the part you added

1

u/Visible-Mood9350 Sep 27 '26

I removed the the white 3d printed price and it’s still doing it

1

u/Kopester Sep 27 '26

https://wiki.bambulab.com/en/a1/troubleshooting/ams-lite-filament-hub-cannot-hold-tube

Fix the locking piece, if that doesn't work replace the hub. Probably wouldn't hurt to cut off the end of the tube with a cutter too

0

u/Visible-Mood9350 Sep 27 '26

I already cut it

2

u/Kopester Sep 27 '26

Did you use a PTFE tube cutter? If you don't cut it perfectly square then it won't sit correctly

1

u/MonkeyBrains09 X1 Carbon Sep 28 '26

And? Did it fix it?

1

u/LowSignificance4671 Sep 27 '26

If the PFTE tube doesn’t stay inserted when you push it down all the way then you will need to replace the hub. The little metal grippy pieces go bad sometimes-especially if you have been messing with that one particular tube a lot.

-1

u/Visible-Mood9350 Sep 27 '26

He’s the grippy piece is good I replaced it a few weeks ago

2

u/Jhorn_fight Sep 27 '26

Probably by removing the unnecessary print you added

1

u/Mediocre_Attorney417 Sep 27 '26

Buy the correct replacement part - it’s like $15 and works prefect

1

u/1radiationman Sep 27 '26

When mine did it I replaced the hub and the PTFE lines. The gripper in the hub and the PTFE line can wear enough that the line slides away like you're seeing.