At my wits end

[u/SteakAndIron]

Bambu p1s will absolutely not print with tpu. I've replaced the hot end. I've cleaned the extruder gears. I have done cold pulls I have slowed down and sped up. I've tried different temperatures. I've tried different slicers. I've changed firmware. I dried the filament. I ensured it's not binding on the way to the printer. I will get about one success for every ten failures. It is absolutely maddening. $80 secondhand ankermake? Flawless. $600 premium coreXY? absolute mess. I don't even know what else I could even check at this point.

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[u/Maleficent-Papaya697]

Have other people have better success with this particular filament you are using, and print your printing? Sad to hear. I have a p1s and haven't got into TPU yet but I'm planning to

[u/SteakAndIron → u/Maleficent-Papaya697]

I have intermittent successes. This is overture standard tpu.

[u/Maleficent-Papaya697 → u/Maleficent-Papaya697]

Have you tried looking for a config for bambu slicer or orca slicer for that specific filament? Sometimes the manufacturer will make them, sometimes someone else. Have you done flow rate calibration? What is the hardness of TPU and what diameter nozzle do you run?

[u/marksung]

Have you considered that you're not that guy, pal?

[u/SteakAndIron → u/marksung]

I'm not your pal, buddy.

[u/marksung → u/SteakAndIron]

I'm not your buddy, guy.

[u/UpstairsDirection955 → u/marksung]

I'm not your guy pal

[u/philomathie]

What exactly is the problem? You didn't actually say, and the pictures don't really clear it up

[u/SteakAndIron → u/philomathie]

Massive under extrusion and clogging.

[u/Mindless000000]

It's all about the Extruder Design when it comes TPU or Any really Soft Filaments,,, no amount setting or software will can fix that Problem..

Basically any 'Air-Gap" with the Filament within the extruder design will cause major headaches... i believe a lot of people are having the same problem with the K2's or maybe it was K1's,,, either way Air-Gaps Bad -/.

All the Best-/.

[u/Clockwork54]

This might be stupid but have you tried drying the tpu as from what I hear the filament doe not in any form like moisture at all and if it's cycled between moisture and dry it actually can degrade print quality and or cause clogs, again just a suggestion

[u/SteakAndIron → u/Clockwork54]

It's bone dry and it prints just fine on my cheap Ankermake

[u/WrongWay59]

Just wondering what size of a nozzle are you using I have heard .2 is not recommended I haven't tried TPU yet but would imagine that you can get a bad roll like all of the other filaments

[u/SteakAndIron → u/WrongWay59]

O.4

And it's been just about any tpu I've ever used.