You're WASTING YOUR TIME 3D Printing TPU!

Today we're looking at 95A TPU. And how SLOW IT PRINTS. But why? Who's to blame? What can we do?

second channel - @foundintech

I will put some links to the products you see in the video. Some are affiliate, some not.

[NathanBuildsRobots]

Lost In Tech is the definitive source for TPU printing news

[Smokinjoewhite]

I have been printing TPU (95a) at 100mm/s and 3.5k acceleration on my sv06 since I accidently used my PLA speed profile on a TPU print with heaps of retractions. Been using that profile ever since and it prints really well, near perfect.

[FAB]

The turning point for me was when I accidentally used the IS "structural" PLA profile for printing something in tpu on my mk4. It worked!
Doing a some tests with pressure advance, I set it to 1. Sounds crazy (like actually, the extruder motor works hard!), but it basically comes out like pla. Huh.

[erin.anderson]

Honestly, my guess is that they are literally not testing TPU, so they're not updating their last known "good" values. Ever.

[MitchD]

It's seriously impressive that we never tried going faster with TPU. The main issue would be making water-tight TPU parts since that's partly what I'd use it for hoses and seals.

[geekmidget]

Very interesting, and .. the CC subs are hilarious! 😆
Well done. 👍

[Smokinjoewhite]

Here in Australia I can get Sunlu TPU and other decent TPU's for around $37/KG, which is around $28 USD. It used to be around $60/KG ($40 USD) so it has come down in price considerably. I think more people are now able to print it and it is no longer a "speciality" filament and is being sold at far more reasonable prices.

[shadir]

0:36 “BOTTOM TEXT” 🤣 Love that you left that in.

[alaingrignon]

I own an FLSUN V400 and managed to get mine to print reliably at 200 mm/s with results good enough to sell. I have mine in a custom-built enclosure but when printing TPU I always keep the door open to help with cooling. I also designed and printed a special maglev spool holder to reduce friction at those high speeds.

[McFlyOrPie]

I actually just finally bought some Overture "High Speed" TPU last week. I'm using my Ender 3 S1 Pro, since it has a Sunlu drier, mounted above it (for long prints when it's humid in my house) But it gave me the courage to crank the speed up. I started with 8 cubic mm then went up to 15. With it's CHT nozzle and the AUX fan, it does a great job. 215 degrees and it comes out so close to PLA quality. I printed that Optimus Primal thing the Paramount Pictures put up on Printables. It worked!

[Catrik]

The stock profile on my printer was 3 mm3/s, I "knew" TPU was slow, but I thought it was a bit too slow, so I did the flowrate benchmark. I was so confused when it was hitting 30 mm3/s.

[Waldohasaskit]

I don't care how fast it prints, I just want to be able to print large models in TPU reliably without it clogging.

[sierraecho]

TPU is super useful. It´s probably the biggest benefit for a 3D printer over injection molding.

[Jynxx_]

TPU is so underrated as a functional printing filament. 95A is so stiff at 3 walls 20% gyroid infill that I use it for functional prints instead of ABS or PETG...and the parts are basically indestructible. 80-100mm/sec at .2mm LH is standard TPU speed on my Klipper printers.

[RegularOldDan]

Years ago: "DON'T EVER COOL TPU"

Now: "YOU BETTER COOL YOUR TPU AT THOSE SPEEDS!"

[ZMicron]

Oh no, he's gonna start another SpeedBoatRace

[priuxls]

I've been printing 95A on my voron with 24mm3 for a while now. Works perfectly

[KRich]

I used to use an Ender V2 with a MicroSwiss upgrade it's now hiding in my basement until a tarp out of shame. My Bambu X1C made it feel very embarrassed. The X1C handles TPU like a champ printing with it at speeds and without failure almost 100% of the time. Printers really have come a long way.

[jonathanballoch]

I want the internet record to show that this was the moment I stopped mucking about and actually bought a new printer. I have been telling myself for months that my SWX1 was fine. Not any more.

[Tony-pmxo]

One problem I found with TPU is it gets dragged along by the nozzle and cause layer shift. This happens if the print is narrow and tall (like temp towers). Far as I know slicer can't detect these geometry so I end up having to slow the print down further than flow rate limit anyway.