Clone E3D V6 40 mm Fan Duct with tight fit

This is a E3D V6 Clone fan duct which can simply be clipped over the cooling fins. The fit is so tight it supports its own weight plus the weight of the stock Anet A8 40 mm cooling fan. I use it in my setup in combination with the carriage here: https://www.thingiverse.com/thing:2099577. This design allows more air flow and therefore more cooling than the crappy mini fan which came with my clone. I had to design it, because there was no satisfying solution available on thingiverse. The designs I