FolgerTech Kossel filament cooler mod.

Finally, after making spring-adjustable bed mount (http://www.thingiverse.com/thing:1102612), I decided to get rid of Z-probe and redesigned the E3D mount for second 40mm fan. It's adjustable, easy to maintain nozzle. It looks flimsy but I print at 120mm/s and high acceleration without problems :)

There is a picture of test print of 15mm column (vase mode, 40 mm/s speed, 0.3mm layer, PLA, 180C). Actually, for such short loop 40 mm/s is extreme speed even with active cooling, but you see the difference.

Printing at 120mm/s using this cooler: https://youtu.be/2ZJ6g_MUM1s