E3D Cooler+Fanduct (both 40mm)

My E3D v6 Clone is slightly bigger than the original, so many designs did not fit my hotend and I ended up making my own design (which was pretty hard for me, as I'm still a noob to Fusion 360).

This version will fit 24.8mm diameter hotends.
If you want me to upload version for other hotend diameters, feel free to comment/ask.

First version of the part cooling duct was blowing 90% of the air through the first slot, so there wasn't much air pressure left on the other two slots. I then incr