TPE warping problems
I have not given up yet!

And I figured it out, I think. I tried many things, dried the spool at 60C for an hour, Simplifiy3D's slicer, but eventually playing around I found a setting that resulting in no warping during the print.

Final solution:
- Original Prusa Powder Coated sheet.
- Changed the nozzle to 0.6 mm.
- 20 mm/s print speed, slow.
- 260 C nozzle temp, make it liquid to get best bed adhesion.
- 90 C bed, this keeps it soft at the bottom. Do not change the temperature, as this will detach the print.
- 0.95 Extrusion Multiplier instead of 1.2  

The extrusion multiplier did the trick. It kept pushing slightly too much stuff out, especially on the bottom layers causing ridges that is will pull on the next layer.
It did still warp a bit, I found that this stuff shrinks about 2% when cooled, and when you start infill, it will pull itself loose. Hence the 90C bed temp.



It still prints poorly, but it did print without creating "the blob"!