I'm new at using CAD models and am having trouble getting my measured features to line up with the CAD iges File I am importing. When I bring the CAD model in, it takes the origin of the CAD model to the origin of the Romer. When I measure the actual part, all my measurements are off in space in the initial alignment compared to the CAD model. After I do the first manual alignment, Plan/Line/Point, and level and rotate and origin what do I do next? I tried doing the CTRL+F4 and making a plane, line, and point on the part, then rehitting and aligning again. This just put my new features off to the side with the other. What am I doing wrong? Please help! lol.
Assuming that all your measured alignment features have correct theoretical values picked up from CAD and are 3D features (i.e. CAD clicked Auto features with Sample points), everything should click after the alignment.
If you use 'Measured features' you *must* enter correct THEOs by hand.
If you use 2D features depending on the workplane during alignment it will fail (there is no reliable workplane before your first alignment when using an arm).
Yes, the Romer arm has no [known to PC-DMIS] relation to the surface your part is resting on, so the 'workplane' you have when starting up is in relation to the arm itself. 2D features are calculated parallell to (or even projected to) the WORKPLANE, and won't work in this case.
Yes, the Romer arm has no [known to PC-DMIS] relation to the surface your part is resting on, so the 'workplane' you have when starting up is in relation to the arm itself. 2D features are calculated parallell to (or even projected to) the WORKPLANE, and won't work in this case.
