A6 Semi-circular Fan (Improved)

This is an improvement to my previous Anet A6 Adjustable Fan. I have made this version for the Anet A6 in light of the results from testing by 3D Maker Noob. See his video at https://www.youtube.com/watch?v=vedP3jhMpy4&t=15s

I made the adjustable part smaller since several people complained that it was very hard to fit and adjust. This one is truly adjustable.