Summary

Yeah, this is a hotend mount for my Ultimaker and two E3D-hotends. I havent tried it yet and maybe never will. This is just a bit of derping around with the hull-feature in openSCAD.

Don't print this just yet. The fittings on the E3D-Heatsink head do not fit. Also there are other things that need to be adjusted.

I thought it would be cool for the hotends to use the same fan, so you'll have less wiring and a bit less weight on your head.
Also the hotends are mounted as high as possible to have their mass-center as close to the crossing of the rods as possible.
What's missing is clamp for the E3D-heats. Maybe i can use my bowden adapter ( http://www.thingiverse.com/thing:163856 ), we'll see.

Also there has to be some kind of fanmount, but i have no idea if there is a fan-mount modeled in openSCAD (i don't think so). hmmm.....

Update: Jep, used a design like the one said above. Also used a mounting system that should work with daids fan shroud (found on YouMagine)....

Update: Tested. Results were promising at least what concerns the mechanical properties. Tolerances have to be at 0.5mm at least on my printer.
Cooling didn't work... So DON'T USE THIS DESIGN.