Anet A2 fan duct

Anet A2 doesn't seem to be getting much love from designers, so I created a fan duct for it. It's for 50x50x15 "turbo" style layer cooling fan. My fan is the cheapest one I found on Aliexpress, the wires were too short, had to extend them. If you have a choice, save yourself the headache and buy a fan with long enough wires (90cm?).
In latest version I have beefed up the mount plates, and enlarged the lower holes to hotend fan to make inserting the screws easier. Use the original hotend fan scr