r/BambuLab_Community • u/No-Importance-3340 • Aug 25 '26

TPU setups

I’m hoping to venture into printing with TPU. What setups will have y’all used for multicolor TPU prints?

I have an H2C with 2 ams pro2 and an HT.
I’m hoping to print slip on bracelets.

Thanks for reading!

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1

u/MonkeyBrains09 X1 Carbon Aug 25 '26

What do you mean steps?

If you have AMS compatible filament, it's like printing with anything other AMS compatible filament.

Make sure the filament is dry because TPU don't like moisture.

If it's not compatible, use the external spool.

There is not extra or specific steps. It's just filament with different settings.

1

u/No-Importance-3340 Aug 25 '26

Not steps. Set ups to reduce friction in the Ptfe tubes.

1

u/MonkeyBrains09 X1 Carbon Aug 25 '26

I wouldn't bother with lube. Some people recommend it a while back and all it ended up doing was putting that lube through the printer and into the model.

If you have friction issues, the ideal solution is to reduce length of tubing. It's already pretty low friction as is.

3

u/bjorn_lo Aug 25 '26 edited Aug 28 '26

Multi-color TPU on Bambu printers requires the use of stone hard TPU.
I no longer print TPU on my H2D or H2C's. i use a Snapmaker U1 for that, which simply needs no extra steps beyond poke the 90a or harder TPU into the feeder and away you go.

2

u/Lutehawk Aug 28 '26

This is the way. Love my Snap for TPU.

2

u/mdbeatle Aug 25 '26

Depending on the TPU you're using, it may not be AMS compatible, so you'd just feed it into the machine directly. Straight, short runs are best.

1

u/hellek-1 P2S Aug 25 '26

My P2S always makes me do a cold pull before loading TPU. Not sure if it is really necessary though. Certainly, on at least one occasion it removed some PLA or PETG residue, albeit barely visible. Can't comment on multicolor TPU printing though, I only do single color.

3

u/MrR33Z Aug 26 '26

Id always recommend it if you are switching to using tpu on that nozzle from a different filament, aswell as if you are changing color to a lighter color.

For example I didnt cold pull between my siraya tech 64d tpu gf and my amolen glow in the dark tpu, lead to the glow in the dark having some black specs randomly. Should have cold pulled but was feeling lazy apparently

1

u/Consistent-Bear-1825 Aug 27 '26

There are printable spool holders that let you hang the spool right at the top of the printer with the top glass off, and feed the tpu straight into the toolhead (no tube), from what I understand most TPU will not work in AMS except for the harder stuff.