About this 3D model
As you can see in my profile, I do not use the standard spool holder (I made one myself under my table that can hold up to 10 spools). I had problems with the standard filament guide because my filament goes diagonally from the table to the printer. Sometimes the filament went out of the guide, even with this version of "outsider" (http://www.thingiverse.com/outsider/overview) that I liked a lot: http://www.thingiverse.com/thing:65751 So I decided to modify it a little bit, in order to make sure the fillament doesn't go out of the guide if pulling in a diagonal direction.