NEMA 17 to 40mm Fan Adapter (Q87553)

My extruder motor can get hot after extended prints, even with the current dialed down. I needed a thing to cool the motor and did not find a thing that met my needs. This is a simple adapter to mount a 40mm fan at the back of your NEMA 17 to cool your hot motor. I created the ducts to direct air over the the 4 sides, and away from the hot end or the print.