Filament Tubing Holder Dual Extruder.

I design this for a dual extruder and standard 4 mm. O.D. tubing . The idea is that when the heads move from left to right the holder will rotate with it. I have a spool holder that holds two filament spools at a time, and it is fed from the rear of the printer. I am working on a rig to have it on top of the printer but will have to move the LCD display. Not really a problem cause the kit came with a desk top mount for the display. The printer is a Geeetech I3 Pro C, Dual Extruder,double Head,re