As the originator of this thread, I never could get Fusion to work correctly, and after a couple weeks of trying to figure out if I should create parts out of components, or components out of sketches, and building a series of joints starting from what I intended to be the stationary component, only to have the entire thing swivel around some later joint for no apparent reason after working ok for the first 3 or 4, I gave up.
I have been a CNC machinist since 1985, and, even though Mastercam states that it is not the ideal environment for creating 3d geometry (It is oriented toward creating optimal toolpaths) I have no problem creating highly complex 3d solid models in minutes. I generally have no problem using OpenSCAD or SketchUp, and have even become comfortable falling back to the Unreal Engine at times, but Fusion has been nothing but an irritation every time I try. I am actually upset, since so many people seem to use it, and I would really like to be able to use the mechanical rendering capabilities to work out certain geometric positioning problems, but I have only so much time to waste on a program where I cannot even make the XYZ axis orient correctly.