TPU material profile in Slicer
 

TPU material profile in Slicer  

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Jay
 jjay
(@jjay)
Active Member

Hi,

Prusa Slicer 2.2.0 202003... Edition, which is the best sclicer software I'm aware of.

There are a lot of materials around and PrusaSlicer does have settings profiles for some of the most prominent: PLA, PETG, ABS to name a few.

But no TPU support, which is sad. To work with TPU, I've had collected bits and pieces here and there, but am still wrangling with strings and other imperfections.

Why isn't there a Generic TPU profile bundled with PrusaSlicer? And while we're at it: why not for many other materials as well?

Posted : 09/07/2020 11:28 am
Neophyl
(@neophyl)
Noble Member

There is.  If you have a Prusa printer such as a MK3 or a Mini selected then there about 8 flex based filament profiles available. 
The list for the MK3 is-
Colorfabb nGen flex
Filatech FilaFlex40
Generic FLEX
Sainsmart TPU
Semiflex or Flexfill 98A

The mini has a different list available.  The filament profiles like the print profiles use a new dependencies system and so whats available changes depending on what printer is selected.  However if you can see it for one printer you can always make a copy and then use the detach from system preset button to break the dependency chain and make it available to all your printers.  

They decided in 2.2.0 that this new system was better and in some ways it is.  However it means those not using Prusa Printers only get a very limited list and even those with Prusa Printers can get confused.  See the post in this forum where someone was wondering why the print profiles for layer heights below 0.15mm weren't available when he changed to MMU2 from a single profile as an example.

Run the configuration wizard, add a mini and a MK3s and then  select all the filament types from the list.  That should give you a massive list to choose from and base your own profiles on.  Be aware though that the filament definitions also contain K factors designed for Prusa Printers which may not be suitable for your own.  Its settings like that, that are defined in the filament profiles that is the reason they are only 'compatible' with the relevant Prusa printer.  So be sure to carefully check all the settings before saving your copy for use with your own printer.

Posted : 09/07/2020 1:17 pm
Jay liked
Jay
 jjay
(@jjay)
Active Member

Hi neophyl,

thanks a lot for your swift reply. Stupid me didn't run that wizard, so I only had those profiles available:

Not so much around. I should add that I used PrusaSlicer even before I owned an MK3S to prep models for other existing printers. So, I will run this Config Assistant for installing some more profiles matching w/ my MK3S printer and see what's what.

Also thanks a lot for your evaluation of the two systems, before and after 2.2.0. This will help understand, since I fetched some weird profile off the wild which introduced some confusion in PrusaSlicer 2.2.0. Now I know why. I kicked it out a few days back, tho. Will do some digging into these filament profiles to see how they interact with printer and print settings.

Posted : 09/07/2020 1:52 pm
jweaver
(@jweaver)
Honorable Member

I use the Generic FLEX profile with cheap TPU and it seems to work fine.. there is a lot of stringing but for the applications i use it for, the results are far better than i expected. 

Posted : 09/07/2020 2:13 pm
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