SainSmart 101-90-164 Black Flexible TPU 3D Printing Filament, 1.75 mm, 0.8 kg, Dimensional Accuracy +/- 0.05 mm

An excellent, flexible filament that produces good results. The finished product is very flexible and will stretch or bend a long way before coming apart. Probably best printed with an extruder mounted to the head, but I printed using a bowden system. Retract doesn't work because of the flexible nature of the filament. Make sure the distance between your extruder gear and nozzle is as small as possible otherwise it will buckle up. Top layers printed on a 10% fill struggled to bridge the gap and took several passes before covering. Perhaps a higher percentage, e.g. > 50% fill should be used?

Printed at 210 on a cold bed with a 0.5mm nozzle. Absolutely perfect results first time - it's a lovely material mechanically and visually - not really squishy but flexible enough for rubber washers and gaskets - I've printed isolating bushes for my CoreXY motors and it is perfect. I print with all manner or materials, and this is now my go-to flexible filament.

Prints absolutely spot on.

Bought as a cheaper alternative to nijaflex and prints easy without any issues but I did find that the surface finish wasn't quite as clean as what I had used before. I found that before it's been through the extruder it was weaker than other flexible filaments however once printed it was fine. Overall for the price it's a good filament and will buy it again!

I have tried a lot of filaments and I Think Sainsmart is one if the best. The colours are great too. I use this tpu at 215 heat to the nozzle and the bed at 40 with a speed of 30mmps

The filament needed drying before use but has performed well in a Bambu labs printer, it seems softer than Tpu95A when printed.

Had my eye on NinjaFlex for a while but was put off by the price and supposed time it took to tweak print setting to get suitable prints. When I saw this I thought what the hell, let's give it a try given the price was only slightly more than normal PLA. No regrets after producing 6 RC car tyres, printed at 220 with no heated bed and they have come out fantastic with no issues first time (Dremel 3D Idea Builder), will buy again.

Great TPU. Used on a stock ender 3 V2 with an acceptable results