Parameterized Open-X

The arm and bracket are recreations of the PSU Open-X Re-design in openscad. The original re-design changed the angle from the horizontal that the arm holds the bearings from 30 to 45. I've made that a parameter that defaults to 45. If you change it, you'll want to change the height and shoulder parameters to adjust the position at which the bearing is held also.

With non-default parameters, you can generate the bracket as it was in the re-design, but it defaults to produce my changes: