I ordered by mistake two 50 mm 12V fans. I always wanted to make something to help with my charcoal grill. I cam up with the idea that I can design something and learn about sweeping. Printed in Silver PLA. I have super glued the fans to the intake bit, its a snug fit and then it is through screwed to the battery pack.
I am including the sdoc model in case you like to modify the model :)