I am having an issue with my machine starting. I 3D printed a 1″ cube on my Robo and want to use that as my starting point. When I set the clearance plane to 1″ it starts by moving up and then to the workspace, and then plunges to about a half inch above the surface. I have tried starting at clearance plane, clearance plane to origin, origin to clearance plane, and above origin. I am stumped and don’t quite understand why despite me setting the clearance plane it continues to offset itself by some mystery distance.