3DPrinting

15812 readers

88 users here now

3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

The r/functionalprint community is now located at: or [email protected]

There are CAD communities available at: [email protected] or [email protected]

Rules

No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
Be respectful, especially when disagreeing. Everyone should feel welcome here.
No porn (NSFW prints are acceptable but must be marked NSFW)
No Ads / Spamming / Guerrilla Marketing
Do not create links to reddit
If you see an issue please flag it
No guns
No injury gore posts

If you need an easy way to host pictures, https://catbox.moe may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is ![](URL)

Moderation policy: Light, mostly invisible

founded 2 years ago

MODERATORS

[SOLVED] Unable to print TPU 93A (self.3dprinting)

submitted 1 year ago* (last edited 1 year ago) by stooovie to c/3dprinting

12 comments fedilink hide all child comments

EDIT: solution is in the comments. TL;Dr retractions ON and INCREASE speed. Both opposite to common knowledge.

I can't print flexible TPU properly. It's either foamy, inconsistent extrusion or jam city, nothing else. I wasn't able to complete a single print properly in a week and probably 50 tries.

Tried

24 hours of active drying
speeds of 10-30mm/s
flow rate 1-1.2 (100-130%)
temps 220-250 (mfg rec is 235-250)
0.4 and 0.6 nozzle
Cura and PrusaSlicer

Direct drive (Biqu H2 V2s) on a well-tuned Ender 3 (no issues with ABS, PETG, even nylon). Part fan off. Printing on PP tape (no adhesion issue).

I can get halfway decent looking print with 250C and a Flow rate of ~140% but it eventually jams anyway. Lower temps give super inconsistent extrusion, nozzle spitting chunks intermittently.

At my wits' end. Any more tips? I don't have any other TPU ATM, may be just shitty filament? It's a cheapo polish F3D Filament TPU 93A. Thanks!

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 1 points 1 year ago (1 children)

Gotcha. Good luck finding answers, and If you figure something out on your own time I'm sure folks would love it if you reported back with your findings. Hopefully someone has some helpful insight :)

[–] stooovie 2 points 1 year ago (1 children)

I did, check my comment.

[–] [email protected] 2 points 1 year ago

Yay ☺️