Printing in Polyurethane Rubber using Fenner Drives' Eagle Orange

Following in the footsteps of others, I ordered some 3mm polyurethane belting from Fenner Drives (http://www.fennerdrives.com/non-reinforced-belting/?s=ZnwxNzc5). I went with the Eagle Orange 85, as I felt its softness and color were ideal. I will be posting an account of my experiences with it here.

I am printing on a slightly modified Solidoodle 2 using a 0.35mm J-head mounted in Lawsy's MK4 extruder direct drive system using the Repertier Host software and MLaws modified Marlin firmware.

Best settings so far (these are what have worked best for me, let me know if you get better results using others):
Temp- 190 C first layer, 180 C others
Speed-Slow, ~20mm/s
Cooling-active fan (not sure if necessary but I had it on)
Bed-Kapton with Hairspray, heating optional
Layer thickness-0.15mm
Extrusion width-0.42mm (0.5 for infill, which I may increase)