Pulley Mount for 5mm ID pulley

A simple and elegant pulley mount I designed for my large scale printer. I attached it to my frame using T-nuts in 3030 extrusion but it can be mounted to any style frame. Mounting holes are M6 but I had to ream them after they came off the printer. This is designed for a standard GT2 6mm pulley mounted on 20mm of 5mm diameter shaft. The shaft holes also require reaming and some force to insert, no adhesive was required.
I have included the step files, this was designed in Autodesk Fusion 360.