Quick round bed leveling aid I threw together. Can customize the total diameter, number of inner rings, width of rings (extrusion diameter + ring perimeters), and diameter of center circle.

The default settings are for an Orion printer (6" diameter bed) by SeeMeCNC, with the models outer ring diameter being 5 inches.

NOTE: For some reason in customizer the rings aren't showing up, so you will need to download the scad file and run it locally to make changes and have the rings show up...