How To Move Part Origin
A part imported into GibbsCAM will have an origin somewhere in space, but almost always not in the desired spot.
Use these steps to change the part origin.
Create a point where you want your part origin. The easiest way to accomplish this from a solid model is to extract geometry from the edges on the model. If a geometry model was imported the point may already exist.
Click on Modify-->Move Part Origin
Hold down the alt & shift keys and click on the point for the new the origin. (The cursor will become a square box.) The X, Y and Z values in the origin dialog should change. If not, make sure the Origin dialog is the active window before performing the alt-shift click.
When the values in the Origin dialog are entered click the Do It button.