Experimental study of the effect of digitizing parameters on digitizing uncertainty with a CMM

Planning of an automated digitization or inspection process takes time and requires experience. The accuracy of digitization and inspection depends directly on the planning of digitization strategies. This paper uses the fractional factorial experimentation approach to investigate the relationship between digitizing (inspection) uncertainty and digitizing (inspection) parameters with a coordinate-measuring machine (CMM). The parameters include travel speeds, pitch, probe angles (part orientations), probe sizes and feature sizes. Robust digitization (inspection) strategies are identified given the part geometry, dimensions and accuracy. Finally, future research directions are highlighted.