40 mm fan case for Anet A8 extruder

I had a 12V fan from a graphics card laying around. I cut the original fins and printed a whole new set of fins for radial fan and a whole case.
Glued the fan with hot glue.
Working like a charm.

As per suggested, uploaded new fins design with smaller rim for better air intake.

Update 31/10/2017:
Following suggestions, inverted the fins for better performance!