SainSmart87A TPU Filament 1.75mm Flexible TPU 3D Printer Filament 1kg Spool, Natural

A few lessons I learned while working with this material (87a natural-color TPU):1. A 0.4 mm nozzle has too much back-pressure, and can cause the filament to kink and fold around the drive gear inside the extruder. A 0.6 mm nozzle works great.2. Volumetric flow rate should be set at 2.5 cubic mm/sec in the slicer. This also automatically creates upper limits for all other speed settings.3. The filament is floppy and droopy like a wet noodle. A multi-material unit has trouble pushing this material to the extruder. It works best in single material mode.4. The filament wants to stretch as the extruder pulls on it. Try to reduce friction as much as possible, and try to straighten paths though PTFE tubes.Once you get it working, this stuff prints great. It's also wonderful not to worry about the part coming loose from the build plate, it sticks so well. Dip a small watercolor paint brush in isopropyl alcohol and paint it around the bottom edge of the part to help release it from the build plate.Because this filament is so soft and stretchy, I was surprised how stiff my part came out, compared to the original filament. 4 perimeters and 30% infill creates a part almost as hard as PETG. 2 perimeters and 10% gyroid infill produces a reasonably flexible part, but it's still stiffer than I expected.

Prints amazingUse my p1s and a1 and filament stays crystal clear and minimal stringing very soft

I made a phone case with this and it turned out great! The glow wasn't super bright, but is fine when charged with a black light flashlight. Next time I print something with this I'll increase the wall thickness and fill density. That should supply the needed thickness and material density to glow longer and brighter. I also love the feeling of the printed material. So far no clogging with the 0.6mm nozzle, but I did get a tiny bit of stringing. You may want to skip the raft or skirt if possible. Removing ths skirt and burrs required a combination of an exacto knife and my deburring tool and took probably 4 or 5 times longer to clean up than PLA or PETG.I have no complaints. Wonderful!

I like the filament, but the cardboard spool (it's not plastic like in the picture) was assembled incorrectly, and also damaged by the vacuum packing, so I couldn't feed it from my filament dryer. These cardboard spools are the worst thing anyone has ever come out with. I ended up tearing one side of the spool off, then designed & printed a spool to hold the rest so it would roll in the dryer. Sainsmart did send me a new spool because of the trouble I had, so they are a good company. But these cardboard spools always create problems.

Bought this because the images and description claimed it was a soft pink. What I received looks nothing like the images. Cardboard spool is trash too amd also not what is advertised in the images. I've uploaded a picture of a drone I have that is actually using soft pink filament, the sain smart tpu is the picture of the spool. Really disappointed.

This glows really bright and quickly with a uv light. Prints easily, I've used TPU before so the same settings I've used before work fine.Temp 220, bed 50-55, slow print speed like 30, and low fan 40%.

This stuff is nice and soft. Definitely the softest TPU I've encountered. I had to get a little creative with feeding it, I ended up hanging the spool from the ceiling over my ender 5 and feeding it without a tube and this worked like a charm. It was way too tacky and stretchy to draw through the feed tube. I also dont see this ever working in a bowden but thats certainly not the manufacturers fault. Its just very soft stuff and you just need to keep your expectations in line with that. Made a few phone cases that came out really nice and some other random stuff with it so far. Dropped my phone on concrete at work a few days later and it just bounced lol. It's EXTREMELY rugged stuff, even between layers. Almost feels like silicone or something and once you get the hang of what can and can't be done with it it prints awesome. Definitely was something cool and different to try and I'll be buying more.

The media could not be loaded. This is my very first attempt to print TPU, ever. My first several prints were successful and had no problems whatsoever. I'd printed 3-4 objects before I had my first failed print with this stuff. Not bad, considering I had the learning curve of never having used TPU before.I printed some squishy toys for my wife and daughter (shown above), at .2 layer height and 0% infill (shown in my picture and video). I'm pleased with the results.It is very easy to print with. I was worried at first because I read that TPU can be difficult, but this was almost too easy. I heard no popping and saw no indication that the filament picked up moisture at the manufacturer. I can't say this for other manufacturers of other filaments. It's very common to have filament come "wet" right out of the box brand new. I saw no indication of that problem with this filament.I could probably dial some things in better as I become more experienced with TPU, but my results are really quite good overall. Most, if not all of the things I don't like about how my prints came out can likely be improved with adjusting my settings.I would definitely buy more TPU in other colors from this manufacturer again, based on this experience.Printer: Ender 3 v2, w/direct drive and dual y-axis mods, hardened steel 0.4 nozzle.Printing on PEI bedFan off for the first two layers.No retractionSpeed: 20mm/sExtrusion Multiplier 1.15Nozzle: 230 First Layer, 225 afterBed: 65 First Layer, 60 after

this was the easiest TPU to print ive tried, very little stringing , its not the softest TPU but im impressed with it, i have only tried the pink, i wish the glow in the dark blue was a blue shade like this pink is pink when in the light.

Très difficile à imprimer.

Ich hatte zunächst versucht das 87A TPU direkt nach dem Auspacken zu drucken. Das geht einfach gar nicht klar. Ich habe es dann für 12 Stunden in den Trockner gepackt bis auf 10-12% Feuchtigkeit und dann gedrückt und siehe da: Die Drucke sehen 1A aus. Man sollte es nicht zu schnell drucken. Außerdem vorher unbedingt mal einen Retract Test im Orcaslicer machen um die richtigen Einstellungen zu finden. Ich drucke es auch deutlich heißer als zB 95A TPU. Mit den richtigen Einstellungen sieht es dann aber am Ende sehr gut aus! Wegen der Komplexität dahinter gibt's nur sehr gute 4 Sterne.

Filament is very stretchy. But prints nice.

殆ど光らない。蓄光具合が惜しいの一言。プリント自体は凄くキレイに出るのに、そこだけが凄く惜しい。ブラックライトを当てて数分で光を放出しきってしまうのも残念。改善に期待します。LEDLENSER ML-4 提灯化ブラックライトを当てて撮影(1枚目)部屋の照明、ブラックライトを消し撮影(2枚目)ML-4のみ点灯(3枚目)