About this 3D model

I had an issue with the filament support, it got stuck sometimes and I could see some missing layers from time to time. I decided to look for a solution and the best one was from "Sneakypoo" in that thing : http://www.thingiverse.com/thing:235925 The all idea is good but not working for me , so I decided to make my own thing. I ended by creating an adapter for the PLA roll it self I used two 6001 bearings ( ExtD 28mm IntD 12mm ) printed with PLA layer 0.1 mm speed 35 Nozzel T 230 ( a bit high but to get a smooth finish) and I m using 03 fans ( two big fans on the sides of the machine and one on the extruder ) Since I have a lot of these rolls I can remove the bearing adapter and put it on the others here is the video to show how it works http://youtu.be/XiOLHdobClM