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Any tips for printing 85A TPU on bambulab A1? (lemmy.world)
submitted 10 months ago* (last edited 10 months ago) by to c/3dprinting@lemmy.world
15 comments fedilink hide all child comments
 

So I have a bambulab A1 and recently wanted to print something with TPU. The issue I have however is that the extrusion is just hella inconsistent. I get a coupel seconds of normal extrusion and then a couple seconds of pretty much none. The first layer was only half filled when I checked and I want to know if you guys have any suggestions.

I used the base preset for generic TPU.

This is the first layer I get after trying a couple different presets. Better than before but still horrible.

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[–] 3 points 10 months ago (3 children)

Is your filament dry? With TPU, it's the first time that I saw a drastic difference of print quality. I dry my TPU for 3 hours at 45°C each time before printing.

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  • [–] [S] 2 points 10 months ago (2 children)

    I dried it for 8 hours before printing

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  • [–] 1 point 10 months ago* (1 child)

    After that the next step is usually to do a test print where you increase temperatures until you're at the maximum range for the filament.

    Basically you're searching for the sweet spot. Heat is a major variable because it also affects flow.

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