Cobra carriage 40mm fan adapter

I wanted to use my 40mm Noctua fan on the Cobra carriage by FerociousDesigns but all fan adapters I could find won't fit because the carriage's shroud has a part that's really close to the stock 30mm fan so it they would collide with that shroud.

So I made an adapter that fits, it's longer than most adapters and is thin enought on the 30mm side so it doesn't collide with the shroud.

You can bolt it the the fans shroud using either the screws that originally hold the 30mm fan to the E3D V6 (they are 16mm long and their head has a small diameter of ~4mm) or use any standard M3 screws from 15mm to 20mm long (they have larger ~5mm heads).

The mounting holes for the 40mm are oblong to fit fans with 32 to 33 millimeters holes spacing which basically means any 40mm fan will fit.