In conventional 3D scanning measurement methods the CMM performs all the movements necessary to acquire the surface data. Acceleration forces induce inertia deflections into the CMM 3d scanning frame structure, which in turn induce measurement errors.
Metrology equipment system manufacturers have devoted years to develop techniques that reduce these dynamic errors, but there is an upper speed limit imposed by the machine and servo system stiffness, beyond which measurement cannot be taken with reliability. A stiff CMM frame is critical for effective scanning which is why aluminum frame CMMs make for a poor scanning solution and all-granite CMMs are the stiffest available.