Parametric angle stop
This is an angle stop with parameters for angle, length, reference position (up, down, and on either non-hypoteneuse side), and reference position standoff from the angle (in mm).
My use case was to set a fence on a chop saw to an arbitrary angle for exhaust pie cuts.
You can adjust the parameters in openSCAD using the .scad file, and then re-exporting a new STL.