Delta effector with magnetic joints and fans

This is my version of delta effector for my new printer.
The provision is for the E3D bowden extruder and 10 mm magnetic ball joints. Three 30 mm fans , one for the extruder and the other two for cooling the printed filament.

2014_05_11 I uploaded R1 stl. I found an error in ProE regeneration.
The distance between rods is 42mm