40mm rocket fan guard - dual extruder printable

I've split this object so that using Simplify 3D's dual extrusion wizard (or similar app), you'll be able to print in different colours/materials. Just import both objects and reset the position on both to '0' in the object properties tab. When printing, do not 'group and align', and print sequentially.

Recommend to build with full supports around outside of cone.

(The full uncut object is also included in this package for single extruder or single material prints)

I've designed another version of this which will plug into many extruder fans, please see here: http://www.thingiverse.com/thing:1002166