I wanted to incorporate a new E3D for my Select Mini Printer. I wanted a separate fan for cooling that I could disconnect, and I wanted it to be radial, for the characteristics. I also wanted it mounted to the hotend mount carriage, and was not happy with the ones I was seeing.

This is work in progress, designing based off measurements - have not printed and tested yet.

I placed a little hook on the left side to ziptie cords, since the E3D has the thermister and thermocouple on that side.

UPDATE 2016-08-30:

Printed 1st go with supports:

1. supports are a bi&*!h to take out.
2. in process, I opened up the end nozzle more than designed removing the supports, also, internal of the cooling vent is not smooth anymore because of the support ridges - not sure how to fix (change way/orientation supports are done?).
3. E3D is SUPER snug in the clamp, it does not close as originally intended, so need to add come chamfer to that edge, or open it up a little bit (TODO).
4. the nozzle could be a little bit longer, maybe 1-2mm or so (TODO)
5. radial fan fit perfectly.

UPDATE 2016-09-02

1. redesigned the vent to have internal filets. These will hopefully not restrict airflow, My purpose was to be able to print without using supports inside. (TESTING NOW)
2. I have a backup design to add manual supports internally.
3. fixed the e3d mount snuggness.
4. moved the nozzle down 1mm
5. added a w_supports file that I am testing - so I can print without the Cura generated supports.

UPDATE 2016-09-04

Printed just fine. the clamp for the hotend is SUPER snug still, even after giving it more space. Moved the nozzle down and I printed the handmade support version. The only diff is that the little lip on the left side for ziptieing didnt have a suport, but will still work as is.