Layer Fan for Geetech MK8 Extruder

I've designed from scratch this layer fan fitting the Geetech MK8 extruder.
It use the original fan, so no more is needed to make it work.

The difference between models is the support to print the top layer, making it easiest to print. I'm trying different solutions and if you can tell me some ideas, I'll be glad.

I've design it for printing with 0,4 nozzle, but I think it will print fine with other nozzles sizes.

Designed with Solid Edge ST8 (University version).

Please, share your