Just received my U1, bought it mainly for tpu. I tried slot 4 first, print got 1/2 way through and then started air printing, nothing coming out. I had to take apart the tool head to remove the TPU stuck in the gears I then tried slot 3, that worked, the object printed. Last night I tried slot 1…

I’ve also experienced the same situation as you, but it was because I didn’t adjust the parameters properly and the print speed was too high. You can refer to the suggestions on this page to optimize your print parameters. Filament Library | Snapmaker Wiki [image]

[image] How to Submit a Ticket for U1 Customer Service or Technical Support ？ Update - U1 Toolchanger Hi everyone! If you need help with your Snapmaker products or have questions before or after your purchase, we’ve made it easy to submit a ticket depending on…

Thanks, I’ll try the settings and see if that resolves the issue, I’ll report back.

If you’ve not done so already, try bypassing the feeder motors . I bypassed the filament feeders on the side of the U1 when using TPU. I successfully printed models on the U1 yesterday using Bambu’s TPU 95A-HF, and with the generic TPU 95A-HF profile. I’ve not tried the non-HF so my scenario is s…

TPU - 95a - getting stuck in gears

U1 Toolchanger

Simon_Zhi May 5, 2026, 3:04pm 3

You can submit a ticket at the same time in case the technical staff or fellow users in the forum don’t respond promptly.

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TPU - 95a - getting stuck in gears

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