Leapfrog Creatr Top Spool Holder

I had some problems with my creatr and it's spools; first, when the spool has less than half of it's initial filament, it won't turn on the bearing pate, instead it is pulled to the small hole and sticks and the extruder would work without material. I found this http://www.thingiverse.com/thing:284049 useful thing which solves this problem. Second, the filament tubes have a lot of friction and sometimes my PLA filaments break into pieces inside the tubes. I got the idea of this thing http://www.thingiverse.com/thing:321922 and made it for clamping on the top plate of my printer. you need a 260 mm M12 bolt and nut to put 2 spools on it. Now the problems of tube friction and sticking spools are solved, in addition, it doesn't occupy the front space of your printer which -for me- is limited and I may crash it often!
I printed them with ABS and 20% infill and they are really strong.