PRILINE TPU-1KG 1.75 3D Printer Filament, Dimensional Accuracy +/- 0.03 mm, 1kg Spool, 1.75 mm, Black

Follow-up after many rolls:While I still love the unique combination of increased stiffness (IRT standard 95A TPU), durability and print quality, there is one major issue I continue to have with this filament: diametrical consistency, which I have found to get down at times to close to 1.6mm. This filament prints less-consistently than much softer flexible materials for this reason. My dual-drive extruders print any flexible material without issue, as long as the filament diameter stays within range. But flex materials are very sensiitive to filament diameters getting much below 1.75mm, because while the extruder will continue to drive the filament, the thinner filament will start to push out the side or bunch-up and then back-up on itself. Unfortunately this filament has this issue, and the result is that 20%-30% of identical prints will fail without operator intervention. Again, zero issue with much softer filaments used on the same parts printed on the same machines. It's a bummer, and I hope Priline can fix this, because the material itself is quite useful. But QA matters.Follow-up: I'm using this filament on a regular basis, in places where I would not have thought about using a flex material before. The print quality is almost indistinguishable from similar prints in PETG, and I'm starting to use it in place of materials like PC, PETG and ABS in places where I need mechanical strength with a little bit of give instead of potential cracking or delaination.I wanted a TPU that was a little stiffer than Sainsmart for some structural parts that also had some flexural areas, so picked this up. To test it out, I threw it on my printer and printed this overhang pyramid using a stock 3mm layer height Sainsmart TPU print profile. I was amazed at how well this filament printed. Not just amazing for TPU, but a really great print for any filament. On top of that, the print can be crushed and then pops back to it's original shape. Layer adhesion seems exceptional, and the preservation of detail is really good. I need to work with this filament more, but it seems to be a really interesting combination of tough, slightly flexible and able to produce really detailed and nice looking prints, and it's a fair price for the quality and unique features. Note that I've only printed with the black thus far, and have just begun using this, but I am impressed out of the gate.

I 3D print in two materials -- PETG and TPU. If the part needs to be rigid I use PETG. If it needs to flex I use TPU.TPU can be an issue with my old Creality Ender 3 Pro. Although I have modified it with a direct feed to the print head, TPU filament jams are common. I have learned to use a Teflon-based spray dry lubricant on the filament to prevent that. With the lubricant it works well, so I'm satisfied with the Priline TPU.Better yet I do not need to lubricate the Priline TPU when printing on my new Prusa Mark 4 printer. Print quality is quite remarkable. That's more the machine than the material. No matter. Priline TPU is quite good enough. I have used several reels of it and will be ordering more.

This was my first roll of TPU. Decided to go with this stuff as it's more on the stiffer side which was nice to learn on. This prints really cleanly.This is probably a bit too stiff for tires, but it makes for really really good parts when you want them to stay rigid.

Love the rigidity of this material. Can adjust flexibility by adjusting infill % (As long as the part is not too small or thin), so this shore hardness is perfect for my applications on vehicles and things around the house. Prints fantastically. Came dry and the filament is not sticking to itself on the roll (problems with some cheap filaments) so it pulls nicely. Great filament for this price point. Highly recommended.I print TPU with no fan for increased bonding between layers and it prints great. If you have any issues with sticking to glass bed, set the initial layer printing temp higher (I do 250 on initial layer and 230 after that).

The most important thing to know is that this is more of a semi-flex. Meaning it's like hard rubber rather than flexing a lot (Also dependant on what infill you use tho). This can be a pro or a con, depending on your intended use.I have an Ender 3 with a direct drive mod.EDIT 2:I've been printing with this filament for quite a bit now, and I am stunned by the quality of my prints. The layers look perfect, the prints come out strong and beautiful. All I had to do was dial in my Cura profile. I am getting significantly better looking prints with this filament than with any of my PLA!If you're looking for semi-flex filament, this is definitely for you! Absolutely stunning.EDIT:Updating my review.After a whole lotta profile tweaking and research, I managed to print it well!I now print it at 200 hotend, no heated bed, and 30mm/s speed, as well as 110% flow rate.Retractions should be kept to a minimum but not completely disabled. When I disabled retraction I got a lot of very hard to remove stringing.My benchy came out basically perfect after swapping to these settings, and I recommend this filament for sure, if you are going to use it for practical parts, rather than flexible parts.I̶ ̶p̶r̶i̶n̶t̶e̶d̶ ̶a̶t̶ ̶1̶9̶5̶ ̶h̶o̶t̶e̶n̶d̶,̶ ̶5̶0̶ ̶b̶e̶d̶,̶ ̶a̶n̶d̶ ̶2̶5̶ ̶m̶m̶/̶s̶ ̶p̶r̶i̶n̶t̶ ̶s̶p̶e̶e̶d̶.̶ ̶G̶e̶t̶t̶i̶n̶g̶ ̶t̶o̶ ̶p̶r̶i̶n̶t̶ ̶w̶i̶t̶h̶ ̶i̶t̶ ̶w̶a̶s̶ ̶a̶ ̶b̶i̶t̶ ̶o̶f̶ ̶a̶ ̶c̶h̶a̶l̶l̶e̶n̶g̶e̶,̶ ̶a̶n̶d̶ ̶i̶t̶ ̶t̶e̶n̶d̶s̶ ̶t̶o̶ ̶u̶n̶d̶e̶r̶e̶x̶t̶r̶u̶d̶e̶ ̶o̶n̶ ̶o̶v̶e̶r̶h̶a̶n̶g̶s̶ ̶a̶n̶d̶ ̶b̶r̶i̶d̶g̶e̶s̶.̶ ̶I̶ ̶p̶r̶i̶n̶t̶e̶d̶ ̶a̶ ̶c̶a̶l̶i̶b̶r̶a̶t̶i̶o̶n̶ ̶c̶u̶b̶e̶ ̶a̶n̶d̶ ̶i̶t̶ ̶c̶a̶m̶e̶ ̶o̶u̶t̶ ̶a̶l̶m̶o̶s̶t̶ ̶p̶e̶r̶f̶e̶c̶t̶ ̶l̶o̶o̶k̶i̶n̶g̶,̶ ̶e̶x̶c̶e̶p̶t̶ ̶i̶t̶ ̶h̶a̶s̶ ̶a̶ ̶g̶a̶p̶ ̶b̶e̶t̶w̶e̶e̶n̶ ̶t̶h̶e̶ ̶i̶n̶f̶i̶l̶l̶ ̶a̶n̶d̶ ̶w̶a̶l̶l̶s̶ ̶o̶n̶ ̶t̶h̶e̶ ̶f̶i̶r̶s̶t̶ ̶l̶a̶y̶e̶r̶.̶ ̶T̶h̶e̶ ̶b̶e̶n̶c̶h̶y̶s̶ ̶I̶ ̶p̶r̶i̶n̶t̶e̶d̶ ̶w̶o̶u̶l̶d̶ ̶l̶o̶o̶k̶ ̶p̶e̶r̶f̶e̶c̶t̶,̶ ̶b̶u̶t̶ ̶(̶o̶n̶l̶y̶)̶ ̶t̶h̶e̶ ̶p̶l̶a̶c̶e̶s̶ ̶w̶h̶e̶r̶e̶ ̶t̶h̶e̶r̶e̶ ̶a̶r̶e̶ ̶o̶v̶e̶r̶h̶a̶n̶g̶s̶ ̶o̶r̶ ̶b̶r̶i̶d̶g̶e̶s̶ ̶(̶s̶u̶r̶f̶a̶c̶e̶ ̶t̶h̶a̶t̶'̶s̶ ̶o̶n̶ ̶i̶n̶f̶i̶l̶l̶ ̶a̶s̶ ̶w̶e̶l̶l̶)̶ ̶h̶a̶v̶e̶ ̶s̶e̶v̶e̶r̶e̶ ̶u̶n̶d̶e̶r̶ ̶e̶x̶t̶r̶u̶s̶i̶o̶n̶,̶ ̶w̶h̶i̶c̶h̶ ̶s̶e̶e̶m̶s̶ ̶t̶o̶ ̶b̶e̶ ̶t̶h̶e̶ ̶b̶i̶g̶g̶e̶s̶t̶ ̶s̶t̶r̶u̶g̶g̶l̶e̶ ̶o̶f̶ ̶t̶h̶i̶s̶ ̶f̶i̶l̶a̶m̶e̶n̶t̶.̶ ̶ ̶T̶h̶a̶t̶ ̶s̶a̶i̶d̶,̶ ̶I̶ ̶h̶a̶v̶e̶n̶'̶t̶ ̶t̶r̶i̶e̶d̶ ̶u̶s̶i̶n̶g̶ ̶s̶u̶p̶p̶o̶r̶t̶s̶ ̶y̶e̶t̶,̶ ̶a̶n̶d̶ ̶w̶i̶l̶l̶ ̶p̶r̶o̶b̶a̶b̶l̶y̶ ̶u̶p̶d̶a̶t̶e̶ ̶t̶h̶e̶ ̶r̶e̶v̶i̶e̶w̶ ̶o̶n̶c̶e̶ ̶I̶ ̶d̶o̶.̶ ̶T̶h̶i̶s̶ ̶f̶i̶l̶a̶m̶e̶n̶t̶ ̶s̶h̶o̶u̶l̶d̶ ̶b̶e̶ ̶v̶e̶r̶y̶ ̶u̶s̶e̶f̶u̶l̶ ̶f̶o̶r̶ ̶p̶r̶i̶n̶t̶s̶ ̶t̶h̶a̶t̶ ̶r̶e̶q̶u̶i̶r̶e̶ ̶i̶m̶p̶a̶c̶t̶ ̶r̶e̶s̶i̶s̶t̶a̶n̶c̶e̶,̶ ̶a̶n̶d̶ ̶I̶ ̶w̶i̶l̶l̶ ̶p̶r̶o̶b̶a̶b̶l̶y̶ ̶u̶s̶e̶ ̶i̶t̶ ̶a̶ ̶l̶o̶t̶ ̶f̶o̶r̶ ̶p̶r̶a̶c̶t̶i̶c̶a̶l̶ ̶p̶a̶r̶t̶s̶.̶ ̶C̶o̶n̶s̶i̶d̶e̶r̶i̶n̶g̶ ̶t̶h̶e̶ ̶r̶e̶l̶a̶t̶i̶v̶e̶l̶y̶ ̶c̶h̶e̶a̶p̶ ̶p̶r̶i̶c̶e̶,̶ ̶I̶ ̶a̶m̶ ̶q̶u̶i̶t̶e̶ ̶s̶a̶t̶i̶s̶f̶i̶e̶d̶ ̶w̶i̶t̶h̶ ̶t̶h̶e̶ ̶r̶e̶s̶u̶l̶t̶s̶ ̶I̶ ̶g̶o̶t̶ ̶s̶o̶ ̶f̶a̶r̶,̶ ̶a̶n̶d̶ ̶w̶i̶l̶l̶ ̶k̶e̶e̶p̶ ̶t̶r̶y̶i̶n̶g̶ ̶t̶o̶ ̶o̶p̶t̶i̶m̶i̶z̶e̶ ̶m̶y̶ ̶p̶r̶o̶f̶i̶l̶e̶ ̶f̶o̶r̶ ̶p̶r̶i̶n̶t̶i̶n̶g̶ ̶w̶i̶t̶h̶ ̶i̶t̶.̶