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Just finished my first TPU print (i.imgur.com)
submitted 3 years ago by to c/3dprinting@lemmy.world
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Pretty impressed how well that one turned out. Used SUNLU TPU in yellow with 200/50 degrees Celsius at 20mm/s speed on my Voxelab Aquila (upgraded PEI bed and DirectDrive, also used Filament drybox).

This filament to be exact:

Angebot: SUNLU TPU Filament, 1KG Flexibles 95A TPU 3D Drucker Filament 1.75mm Maßgenauigkeit +/- 0.03 mm, Hohe Liquidität und Elastizität, 1KG（2.2Lbs) Spule, TPU Filament für FDM 3D Drucker,TPU Gelb https://amzn.eu/d/7H5TLjr

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[–] 1 point 3 years ago (1 child)

What did you need to do to get your printer ready? Anything you've learned to make it easier a second time?

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  • [–] [S] 0 points 3 years ago (1 child)

    I think that heavily depends on the used printer, parts and filament.

    But one tricky thing that comes to mind instantly was e-Steps. I got a metal dual gear Extruder and didn’t realize that the gear was smaller than the original. Because of that I had to change the e-steps in the printers firmware-settings so it knows how much it needs to turn in order to get one mm of filament through. As I didn’t know that I had some crazy underxtrusion and warping problems. Took quite a while to figure out (not only a problem with TPU).

    But generally if your partner wants to get into TPU printing, I would get at least a direct drive upgrade. TPU is a flexible material and it’s better to press it in the Hotend as directly as possible. Also print very slow to get better results.

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  • [–] 0 points 3 years ago (1 child)

    Thanks for the advice! Fortunately, our Fokoos comes with a direct drive, so that's checked off already. I think our major hurdle right now will be to keep filament properly dry, as I read TPU can get quite finicky with that.

    I hadn't thought of the printing speed yet, though - appreciate the help!

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