Anet A6 Adjustable Fan

UPDATE: I have made the top duct a little smaller so that it fits better and is truly adjustable without post processing. This is based on the feedback that I got from a couple of people. Please also see my semi-circular fan which should be an upgrade to this fan.

This is a remake of the great work of JohnnyTheOne. It is not as well finished as his, with those sexy round curves. I made a remake of his fan with the focus on centering the ring on the printer's nozzle. I wanted the air flow to be centered on the print head in as much as possible. I have 2 different versions.

The first version should be used if you print it with PLA. It makes sure that the fan is far away enough from the heating block to prevent melting. In the STL image, you will note that the duct is closer to the inner ring.

The second version focuses on centering the air flow without regard for the heating block. It should be used with ABS or PETG as those filaments tolerate higher temperatures. In