Rounded 40mm Fan Mount for NEMA 17
by Georgewchilds, published
I needed a 40mm fan mount that I could mount onto my MakerGear Prusa Mendel motors without deconstructing the printer. I couldn't find one online that fit all of my needs.
I started with the basic concept from this fan mount for the x-axis carriage:
which was based on this one:
By flipping the orientation of the mounts, they can be used on differently mounted motors.
Here's a Youtube video of the build. Wait a few seconds to see the mount centered in the video:
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I include the openscad file for adjustments. I tried to parametrize what I could, but it's not that realistic.
Print out two of these for each fan you need to mount.
Check the orientation for your fan on your motor and use four (4) - M4 or M3 screws, along with matching nuts and washers to mount each fan onto the pair of things.
Slip the mounted fan over the motor using the hole between the arms.
Make sure that it will not interfere with the movement of the extruder at higher points in the z-axis.