This routine by Michael Weaver will calculate the volume and center of gravity for 3D solids in AutoCAD. Start by loading the LISP file, then run the command ModelStats. Select one or more solid objects, and a circle will be drawn whose center point is the center of gravity of the selection. The volume will be calculated and the result displayed at the Command line along with the weight (based on the mass of steel). Units are assumed to be in inches. Nice job, Michael. |