The newer version of PC-DMIS has a constructed plane option of Primary Datum Plane, and I'm not sure when I should be using that.
Should it be used in my DCC alignment for the primary (leveling) datum?
Or should I continue to use the auto-feature plane that defaults to LSQ for alignment, and use the constructed Primary version as a Datum Definition that is used for evaluating GD&T only?
Is there any concern that if I don't use enough points to construct this Primary Datum plane, it will skew alignments/results if there is too much part variability and the points aren't exact from part to part? (example: if there's an errant hit on a burr or something, the plane is far more skewed compared to an averaged plane)
