PRILINE TPU Filament，PRILINE 98A TPU Flexible Soft 3D Printer Filament，1KG 1.75mm Spool Durable Flexible Material, Yellow

So far, outstanding print quality at 215C, 25mm/s when filament is kept very dry. Product claims softness of Shore 98A, which would suggest slightly less flexibility than Shore 95A, which is common with other common TPU varieties. That's exactly why I purchased it and it delivers. Additionally, thin sections can be flexed hundreds of times with no appreciable change in properties, which suggests that the parts will have the famous TPU durability. My only disappointment is that when parts are flexed and then released, they only recover about 50% to their original shape. The other TPU I have experience with is Hatchbox, which recovers nearly 100% to the original shape, making the Hatchbox far more useful for what I had intended. Since the mfgr. makes no claims on resiliency (that I saw), I have no basis to demote the feedback rating, but next purchasers should be aware of the properties they can expect. Update 2021.05.12: Rather than using this for applications requiring flexibility, we find this is our go-to material for applications where the parts are actually going to be used and where we would otherwise have used PLA. If we just want something to sit on a shelf and look good, we can use up the PLA. But if the parts are going to be handled, assembled, dropped, drilled, screwed together, and stepped on, we use this. This material is what should be used when you want to make something really useful. Update June 2024: -Dry thoroughly (can’t be over emphasized) -Use a max volumetric flow of 2mm3/s to automatically limit print speeds (independent of layer height or width) -Use 200c nozzle temp (yes, it seems low, but layer bonding is still perfect and detail/bridging rivals PLA) -use 1 degree ramping lift to further minimize stringing, but with dry filament and relatively low flow rate, there shouldn’t be much stringing anyway. This stuff is extremely underrated for making very strong, useful things.

This is the best 98A TPU I've used. -Prints super clean at 210C. Very minimal stringing when tuned properly. -Proper plastic spool - none of the cardboard garbage so many others are using. Priline - please keep it this way! -Works great with my Bambu H2D and AMS HT. -In black, it has a more matte finish than most TPUs, which I find appealing. -Has some flexibility without being super rubbery, even when printed solid. -Good price. Some printing tips: TEMP: 210C proved to be a sweet spot for me. RETRACTION LENGTH: Avoid significant retraction as it can cause ugly wall gaps - keep it at 0.4mm or less. Z HOP: A normal-style Z hop of 0.4mm works nicely - avoids top layer travel scars without producing stringing. RETRACTION SPEED: 30mm/s worked well for me. TRAVEL SPEED: In lieu of relying on retraction for ooze avoidance, ramp up the travel speed - I use 1000mm/s. PRINT SPEED: 40mm/s gives me clean walls. K FACTOR: I've had success with 0.2.

Love this filament! You can make so many functional prints with this that are super tough. Excellent wear resistance for rc parts!

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.̶

Harder than many TPU filaments, but has been reliable and easy to print with. No complaints.

I am very pleased with this filament! I made a phone case and it came out very nice. I printed right after opening the package and didn't have any issues with moisture content, but I still put it in the dryer while the printer was working. I print almost everything from a drybox tho. The filament seems slightly stiffer than my Polyflex TPU95, but the print was thin, so I'm not for sure to what extent. I am very paticular about filament quality (mostly use Polymaker) and have thrown out spools or given them away for poor quality. I used the default Bambu TPU95 settings on my X1 Carbon and its very close to perfect. The default support spacing is adequate for this filament too. I'm extremely pleased with the filament's ability to print overhangs and also experienced no stringing. Just make sure to use plenty of build plate glue/adhesive because like many TPU's they stick so well to the build plate, the glue is actually a release agent.

Every 1kg roll I have ever bought has been great, prints easy, no issues. I bought the 4.5kg roll of black and it's been such a pain to print. The width is so inconsistent that it often sets off my filament runout sensor and pauses my print because it's so thin it doesn't detect it. Then I have to unroll another 4-5 feet for it to be back to normal width so I can print again. 1kg rolls = very good 4.5kg rolls = borderline unprintable

It's tough to find non-Bambu TPU filament that works in Bambu's AMS. This one works great for me using the standard "Bambu TPU for AMS" profile. I wish it was a little softer, but that's the tradeoff for using it in the AMS.