CraftBot Fan Cover

It's a cover for the CraftBot 3d printer's fan, or any other 40mm fan.
Printed by:
https://www.indiegogo.com/projects/craftbot-3d-printer?sa=0&sp=0
http://craftunique.com/item/craftbot
Sliced by:
http://www.craftunique.com/craftware
The layer height is 0.3mm.