This is a simple way to mount an idler pulley to MakerSlide and other 20mm or 40mm wide extrusions. It has an integral 5mm stud for mounting the pulley. The bottom of the bracket is flat.
The bracket could also be used as a quick way to mount a 5mm stud to an extrusion.
This does not include the idler or mounting hardware. A 6mm long button head socket screw is recommended.