NEMA 17 cooler

thingiverse

Didn't like how hot the extruder stepper was getting so I designed this to cool it down. I created 2 versions.. I need the cut out.. some may not. It fits the 42.3 x 42.3 x 40mm long Extruder stepper on my Ender 3 Pro. It should be usable on most NEMA 17s. You can mirror the cut out version's X, Y or both if needed to get the cut out on a different corner. It uses a 4010 24 volt fan. There are many 40mm fan grills on THINGIVERSE. I highly recommend covering the fan to protect the fans blades. One good wacke and the fan will become LOUD! There are 2 versions. One with a cut out for the wire socket tab on the motor and one with out. It springs enough you don't have to take anything apart to snap it on. Print on its face, fan side down. It only needs supports in the cutout. If you are printing the plain version, No supports are needed at all. I printed this a bit fast and it shows. 45 is a good speed on my Ender if I want nice faces. No brim but a skirt always helps. Post your makes please. I'd like to see it in action :)