Summary

A chair wheel stop to prevent chairs from slipping backwards. It includes a center notch to better pin the wheels sideways, for wheels that are split into two segments (which seems to be most office chairs). The open front design allows for easier mounting by sliding into the chair stop without having to lift the whole chair into the stop assembly, which can be a pain for heavier chairs (such as mine).

I created this to stop myself from sliding around while playing racing games with a steering wheel and pedals.

Includes the original FreeCad file, with parameterized options to control the radius, the front notch's length and height, and the center slot width and height.