NEMA 17 to 40mm Fan Adapter
by ChrisMagno, published
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.
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No problem Chris! That's what I thought. On my motor it is very loose, I'll try to use some kind of tape. Thanks!
sorry, i misread your original question. This was designed to attach and stay on with friction. for mine, I pressed them on the motor, and they stayed on snug.
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I created 2 versions of the same thing. If your motor has what I call "soft wires" going into the thing, please download the STL Fan_Adapter_4_soft_wire. If your NEMA17 has a more rigid wire keeper, then please use Fan_Adapter_5_solid_wire
The holes were designed for 3mm. To mount the fan, I used 6-32 without a nut. The slight size difference allows for the screw to self tap into the ABS. Otherwise use 3mm screw, and nut
Choose a length of screw that protrudes 1/4" or 3mm past the inside of the adapter. This will act as a spacer to better allow the air to pass over the base of the motor and through the ducts.
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