First TPU Print
I've been FDM printing for about a month now (MK3S). PLA and PETG prints have been a success, in spite of all the doom and gloom on the internet on PETG.
I need to make a part for my motorcycle out of TPU.
Can you please recommend a model (like Benchy) to test for TPU?
Also, any tips for first timers on TPU?
Thanks!
RE: First TPU Print
I think the most important thing is to lower the "Max Volumetric Speed" setting in the slicer down to around 3-3.5 mm3/s. The other thing you might need to do is loosen the idler arm adjustment screws a bit to set the tension right on the extruder gear. I didn't have to do the this when I started printing TPU, but others here have.
Keep In mind that TPU sticks hard, so release agent on the build plate is recommended, especially if you are using the smooth PEI sheet. I've actually been printing on Garolite, and I have turned the bed heat entirely off for TPU and it sticks well and releases fine on a bare plate, but I understand that most people are using OEM build sheets.
TPU has been painless for me from the start, with no clogging and nice prints. You do need to work harder to keep TPU dry though, and it might be a good idea to dry it for before printing to be sure it hasn't pulled in moisture.
-J
RE: First TPU Print
Thank you! I'll dry the TPU overnight, then try a Benchy with it.
I'll keep in mind your suggestions re print speed and tension screw.
I'll report back tomorrow with results.
(we noobies have such basic questions, but they seem insurmountable to us)