I decided to take up the challenge of printing with tpu, I managed it on my Frankenstein printer. I just needed to slow down my speed settings and it works well. A friend asked my to see if I could make a convincing Gummy bear, his reply was it didn't taste as good as it looks and asked for more in different colours. My next dilemma is what to try next with my sample pack.

I brought the "flash red" but it took a few months to actually get round to using it. At last, I have got round to trying it out. First of all, these are the settings I used. I have a Hictop i3 clone although quite heavily modified. I have swapped the original hot end for a bowden type and using an E3D lite v6 hot end.

For the Rigid ink TPU I looked on the box and it said the hot end should be from 210c and the bed should be set at 60c. If you do a lot of printing you know how your own set up works so I decided to try printing at 220c for the hot end and 60 on the bed.
I use my own bed adhesive that I developed myself, but this TPU sticks really well I have found. In fact, I tested this out on a clean piece of glass that was cleaned and wiped over with nail varnish remover then allowed to dry and the test print stuck very well and was easy to get off.

I set the speed to 30mm/s with no part cooling and I turned off retraction. This TPU prints beautifully the layers are fused together really well and the outside wall looks neat and very tidy. I love this stuff its so easy to print with the bottom layer is like glass.

I use Octoprint on this particular printer and I made a TPU profile that I use for this filament. This means I have to select it from the list and on one print I was doing I forgot to select the TPU profile and used the default PLA one instead the hot end temp was 210c bed was 50c. The retraction was on at 6mm at 40mm/s and print speed was 40mm/s. Surprisingly it hardly made a difference to the finished object I was really happy because it means there is room for error in the print.

All in all, I think Rigid Ink TPU is one of the best TPUs I have ever used. It is different because it allows for a little human error and still comes out looking great. This allows for repeatability in your printing which makes us happier makers :O)

I will definitely be buying more of this stuff as I have much more testing and some big parts to print off.

I have been using this filament succesfully for several months now. However, the colours displayed on this page are not completely representative of what you will actually get.. Dark blue is actually translucent, which should have been mentioned somewhere. The light blue is in reality less saturated and more towards green. The photos of light green and black filament do match with the actual material. I have not tried the other colours. Hardness is accurate.

I can recommend this filament, but beware that you may not get the exact colour you think you've ordered.

I have so far had a great experience with this tpu filament after hearing some bad stories of other filaments and the perils of flexible filament printing. This filament has so far been so easy to use and can only get better from here as I hone my printer settings and my own technique.
A very pleased and repeat customer.

The filament was good, just wanted it for some tyres for a rc plane,
Set my printer up with slower settings,
Thanks Richard.