Made this wrench to adjust the tilt setting on my Overbed Table. Just print it and slap it on the knob and it'll be good to go. It's snug so it stays in place, but it's easy to add and remove, so you can put it in any orientation you like or move it between different knobs.

Use STEP (.stp) for slicing if possible, it uses curves. You may alternatively be able to use IGES (.iges), or download the zip file and use ACIS (.sat), both of which also use curves. If you can't use curves for some reason (get a new slicer), you can use OBJ for ngons or STL for tris.

Each zip file contains .stp, .iges, .sat, .obj, .stl, .x_b, .x_t, and .plasticity-format files for its respective model.