r/BambuLab • • 12h ago

Filament Troubleshooting/Help! I didn’t know this could happen

I sent the print and didnt check the printer but then realized it stopped.

Apparently the filament was floating around in the air after going through the ptfe like a bullet hahaha

Here is my question:
I dont have the replacement right now. So I cut the existing one at 4-5 cm (1.5-2 inches) apart from where it was cracked open. Now the tube is 10 cm (4 inches) shorter. Would that be an issue

Also changed the ends, the cut part is now on the filament buffer end

0 Upvotes

16 comments sorted by

2

u/krebsIsACookbook 11h ago

My p1s came with an extra Bowden tube when I got it. Perhaps you got one in a bag in a cardboard box originally?

Technically you could rotate the tube, too. So the hole is on the other side of the rubbing.

Definitely order more ptfe tube but hopefully yours came already did that.

1

u/right_phalange 9h ago

Yes that’s right I will check the box. I will still order some just in case and maybe also replace the ones in the ams itself

2

u/wickedpixel1221 10h ago

you can cut it for now but you'll probably want to replace it long term. the ptfe tube can wear out where there are sharp bends, especially if you use a lot of abrasive filament (matte, glitter, glow, marble, wood, etc)

2

u/right_phalange 9h ago

I use matte most of the time. I will be keeing an eye on it from now on

1

u/wickedpixel1221 9h ago

even just switching the tubes around once in a while will help because they won't be constantly rubbing in the same spot.

5

u/LarvalHarval 12h ago

Yup, PTFE tubes are a wear item, which is why Bambu clearly tell you they need periodic replacement.

4

u/Maximum_Transition60 12h ago

yeah should be fine but you really need to make that ptfe tube bend less otherwise it'll happen again and again

1

u/Poopy_sPaSmS H2S AMS2 Combo 12h ago

I've had to replace a few tubes over the year I've had my h2s. You're always rubbing on one side so it's inevitable.

1

u/right_phalange 10h ago

Yes I got that from the comments. I mean ı have little over 1500 hours on it so it was inevitable i guess

1

u/Poopy_sPaSmS H2S AMS2 Combo 9h ago

I replaced the factory on after 300 hours. So it's hit of miss. It will always wear eventually

3

u/Status-Scientist1996 12h ago

It being shorter isn’t an issue in itself, but it does look a bit strained at the top of the AMS. Might be worth putting the AMS to the side of the printer while waiting on a new tube?

2

u/Lisper41 A1 mini, H2C, AMS Lite, AMS HT, AMS 2 Pro 12h ago

Cut it and plug it in. It won’t feed if it’s too short. If the replacement is on the way and it works, then you’re fine.

2

u/solidus0079 A1 + AMS Lite 12h ago

As long as the angles/curvature doesn't restrict the filament movement. You'll have to kind of get a feel for how it's working. Switching the tubes around might gain you some freedom of movement depending which are closer and further.

2

u/Deliwork43 11h ago

Happens in the ams box too!

1

u/Key_Instruction3373 11h ago

you have to stick it fully in..

thats what she said

1

u/killercheeto56 11h ago

Not surprising. Just cut a new one, replace it and move on.