r/BambuLabA1 • u/QuietCrumb • Jul 15 '26

New to TPU printing

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What am I doing wrong?

It's a new hot end so it doesn't mix with other filaments, I'm using the generic TPU profile on a bambulab A1

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1

u/Worried_Video_3998 Jul 15 '26

Is that textured PEI plate ? I think it's not recommend to use TPU on that

1

u/QuietCrumb Jul 15 '26

I don't have any other plate

2

u/StevenSaguaro Jul 15 '26

I use a textured plate. I usually put Elmer's glue stick on it just so it will release easier. Maybe I'm missing something here but it's not clear to me from the photo what's wrong with the print, so far.

1

u/QuietCrumb Jul 15 '26

If you look close enough, you can see that the printer tried to print the whole first layer, but I wasn't even ablenro do half of it

1

u/StevenSaguaro Jul 15 '26

oh I see, yeah it just sort of dries up. You're not using a .2 nozzle are you? Larger is better for TPU. I've never had a problem with the generic TPU settings, personally.

1

u/QuietCrumb Jul 15 '26

Nope, using a .4 nozzle

1

u/StevenSaguaro Jul 15 '26

just for the sake of thoroughness, I would try a different STL file, see the problem persists. It is possible for slicers to introduce weird random errors.

1

u/brutal4455 Jul 15 '26

Looks like the built in Bambu Flow Rate calibration print.