Anet A8 Circular Duct - Taller Version

EDIT 06/26/2018: The original file has been replaced with one I've fully printed and am currently using with great success. This is now safe to use!

I have been using Aymanhasan's circular air duct for months, but only now just realized that it sits far too high on my Anet - it should be blowing air on to the tip of the hotend and on to the print, but instead, it was just cooling the heat sink block that the thermistor lives in.

I've extended the duct entry by 11mm, which places it properl