Issues with TPU  

Re: Issues with TPU

I hate that! Here's how to fix it:

* Disable retraction. *Completely*.
* Loosen the tension screws to the point where if you tug reasonably strongly (enough for the filament to stretch a bit) it starts coming out of the extuder (without the pulleys turning much).
* Don't try to print multi-materials with flexible filaments. The wipe tower goes too fast and there's no way to slow it down (yet)!

Also, for TPU I recommend setting *all* your speeds to 20mm/sec and no higher.

Re: Issues with TPU

The wipe tower goes too fast and there's no way to slow it down (yet)!

Oh, yes there is...KISS + Post-processor. Prints TPU tower at 30% speed (and has done for a while now).

Peter

Re: Issues with TPU

I hate it too Riskable, hard to get out of there! Awesome, thanks for the info.
PJR wondering if you have time if ypu could lay out the steps required with KISS and post processing

Re: Issues with TPU

PJR wondering if you have time if ypu could lay out the steps required with KISS and post processing

Well, it's simple; open KISS, select parameters, slice model, save model. Post-processor is run automatically on save.

Peter

Re: Issues with TPU

very easy thanks for your help!

Re: Issues with TPU

OK not as simple as I thought, I cannot see TPU as a material in the EXT Mat settings just PLA, and PVA, I am using the pre-configured profile from here ftp://ftp.rumble.si/

Re: Issues with TPU

OK not as simple as I thought, I cannot see TPU as a material in the EXT Mat settings just PLA, and PVA, I am using the pre-configured profile from here ftp://ftp.rumble.si/

Wizards/Create Profile Wizards/Material Wizard.

Create a profile for whatever material you need.

Peter

Re: Issues with TPU

ok thnx, i am having trouble locating where you disable retraction, as well apart from setting the slider in "style" to around 20 is there any other settings you would recommend i change for tpu? Where do you change the wipe tower speed? I really appreciate you answering my questions! KISS is new for me but seems very powerful 🙂

Re: Issues with TPU

ok thnx, i am having trouble locating where you disable retraction, as well apart from setting the slider in "style" to around 20 is there any other settings you would recommend i change for tpu? Where do you change the wipe tower speed?

Retraction: Settings/Material/Destring [mm]
On the same tab, set Max [mm^3/s] to 3

The post processor automatically reduces tower speed when "TPU" is included in filament name. Should be about 30% of PLA tower speed.

Peter

Re: Issues with TPU

Thanks, it seems though all extruders are blanked out when I try and print the separate parts of the mesh, is this a PRO option only?

Re: Issues with TPU

Thanks, it seems though ll extruders are blanked out when I try and print the separate parts of the mesh, is this a PRO option only?

Re: Issues with TPU

Yeah, it's a "PRO" feature.

Select and extruder for all meshes, save your project file, zip it up and upload it here.

Let me know the extruders/material you want to use and I will slice it for you for testing.

Peter

Re: Issues with TPU

I would like to use TPU 93a and just a different colour for each mesh, using extruder 2.3.4. Extruder 1 is PLA so I dont want that. Thanks so much for this! Be awesome to see his work!