Any size fan mount for 20mm Extrusion
by iquizzle, published
Mount any size fan to your extrusion using M3, M4 or M5 screws with my nut clamping system. M5 fan mounts can also be mounted directly to extrusion with t-nuts. Fans can be offset to the left or right with a single parameter.
Download the scad file and choose fan size and mounting screw size. Use the parameter "mounting_pos" to set the left/right position of the mounting tab. Use a t-nut and mount directly to your extrusion with an M5 mounting screw -- or print a nut clamp and choose whatever screw size you have laying around.
Nut clamps can be found here: http://www.thingiverse.com/thing:39624