POLYMAKERTPU Filament 1.75mm Black, 0.75kg Shore 90A Flexible 3D Printer Filament 1.75mm - PolyFlex TPU90 3D Printing TPU Filament 0.75kg Black Soft Flexible Filament

The trick to gaining clean, crisp prints from Polymaker Polyflex TPU is to print single parts at a time versus batches of multiple components. This makes a “night and day” difference in print quality and precision.Though this TPU Shore 95A filament is very “soft” and flexible to the touch, I am having zero problems feeding and printing it with a 15.5” (long) Bowden tube between my extruder and hot-end. I’m using a stock Ender 3v2 Neo with Capricorn XS tubing and Diamondback nozzle.Here’s the amazing thing: on the non-direct-drive printer set-up described above, I get fantastic prints at low nozzle temp (200 deg C), modest speed (30 mm/s), and with quite a bit of retraction (5 mm distance @ 25 mm/s speed). This is completely contrary to the usual requirements for printing TPU, which is to “print hot, print slow, and turn off retraction.”I’ve experienced ZERO nozzle clogs, extruder gear slips, or filament breaks with this Polymaker Polyflex TPU. But, then again, Polymaker filaments have proven to me to be consistently top-performing and problem-free.The print quality is so high that I’m able to cleanly and clearly print small text (3.5 mm heigh and 1 mm deep) embossed into horizontal surfaces, which get deformed and obscured when I print with PLA. I had so much fun with the accuracy and precision of this Polymaker Polyflex TPU, that I ended up printing 60 hours of parts that I had not intended to produce in TPU. I am discovering that this TPU prints more crisply and accurately on my set-up than with PLA.Polymaker Polyflex TPU Shore 95A is incredibly resilient and abrasion resistant. I created some press-fit components with it that have to be hammered to disassemble. The parts printed in this TPU can absorb huge impact forces from metal punches under forceful hammer blows without deforming, tearing or denting.The clear TPU is remarkably translucent. If you print really hot and slow, on a smooth build plate, with high fan speed, you can get “see through” clarity. This Polymaker Polyflex TPU flows really well with very low viscosity when the nozzle temps go up. Heating it up high and then cooling it quickly keeps it amorphous with window glass-like clarity. Printing at lower temps and letting this TPU cool more slowly allows a crystalline structure to form in the material which is more opaque but exceptionally strong.Usage tip: if you’re used to disengaging the extruder gears to manually push your filament through a Bowden tube … don’t. Select “disable stepper” and use the knob on the extruder to “wind” this TPU filament from the extruder to the hot-end.The Polymaker Polyflex TPU is on the expensive side, but it definitely performs to its higher price point and gives me the impression that it is a premium product. The much heavier gauge “foil” bag it comes vacuum sealed in adds to that impression. As such, I have have been careful to take elevated care of this spool, and put it into the filament dryer for 8 hours before putting it away in a vacuum sealed container with dessicant.I have a whole bunch of other materials on my production schedule, but I am really looking forward to when I can find an excuse to break out the Polymaker Polyflex TPU and do more prints with it.I’ve had such great success with this Shore 95A TPU that I’m tempted to try the 90A rated TPU from Polymaker on my Bowden-tube set-up.

This is good quality TPU filament. As expected for TPU, it absorbs moisture like there's no tomorrow. Make sure to use a filament dryer while printing!

Son purchased for hisb3 D printer. He is happy with it!!

Polymaker makes great stuff and this was no disappointment! This was my first time using TPU as I needed to make a conveyor belt for my FULV Toy Factory (google it, he's a great designer!). My first attempt failed, way too much stringing. Totally my fault though as I thought I could short change the recommended time to dry before printing! I never realized how touchy TPU was. After drying the recommended time (and I printed directly from my dryer) my belt came out great!I also printed an iPhone case after just to try out some other stuff, and I would say that came out good at best. But I chalk that up to my lack of experience, not the material!

I have used this for multiple printed ant combat robots and it has held up great, no damage has ever been done to a part made from this. The one drawback is the fine tuning that is necessary to get a clean print, I haven't even figured it out yet. My models usually have so much stringing that I have to sit down for 30 minutes and clean it off using a heat gun and scissors. Other than that, it has worked well for many things other than combat robots too. It is probably best to use this in less precise applications at the start, while you figure out the settings.

Good product for the price.

Polymaker has great filament across the board and this TPU is no exception. I needed some TPU and wanted something in a fun color for my 3D printed Deathracer I was building for Rocky Mountain RepRap fest and this fit the bill. It printed great and required minimal print tuning.

This is excellent TPU. TPU makes disappointing tires because despite being soft it is slippery. But tires made of Polyflex are less disappointing than most. Polyflex has more "tackiness" or "grippiness" than most TPUs. The only two TPUs I have found better than this for tires are CoexFlex 30D which takes 10X longer to print, and CoexFlex 60A which requires a special extruder, and even if you have the special extruder, takes about 30X longer to print. Polyflex is the best compromise. Prints faster than most ordinary non-"high speed/high flow" TPUs and end product looks better than most TPUs.