Fanduct for the SmartrapCore printing zone V.2.3

An evolution of another fanduct I previously made for my SmartrapCore printer. This one reduces the angle of the fanduct to improve the air flow, by being set above the Zsensor's ring instead of below.

This also may have the advantage of reducing the risk of collision with other parts of the printer that it might encounter during auto-level (like, in my case, the RPI camera mount I also designed : http://www.thingiverse.com/thing:678010).

I also made a cleaner air exit, and as the glob