If your CAD part has its z zero on the bottom, which coincides with the granite surface of the CMM, How do you take hits on that surface in DCC mode? In manual mode its simple to probe the granite around the part and call that z zero. Once you switch to DCC mode, I cant figure out a way to instruct the machine to take hits on a plane extended out from the part bottom. I have worked around this in the past by moving the z on the cad model but the part I am measuring now doesn't lend itself to that method. It is basically a large cone with no plane at the top. The part is too large to fixture on its side. Thanks in advance.
When I was learning at the tech school we put parts on the steel tapped plate. So I modeled the steel plate and brought it into the assembly. I guess you could simply make a thin rectangle in a CAD program and place that umderneath the part.
This allowed me to click a surface for DCC vector points to create a plane close to the part extremities. Its a datum simulator that is subject to the quality of the surface you touch.
When I was learning at the tech school we put parts on the steel tapped plate. So I modeled the steel plate and brought it into the assembly. I guess you could simply make a thin rectangle in a CAD program and place that umderneath the part.
This allowed me to click a surface for DCC vector points to create a plane close to the part extremities. Its a datum simulator that is subject to the quality of the surface you touch.
