How do you measure dimensons from a datacloud?
We get dimensional accuracy by averaging points on each part surface used. Our sensor typically gets a thousand points on each part surface, each point accurate to +/-10 microns. Suppose those points are from a plane. We do a least squares fit of all thousand points to find that plane’s 3D location. As on a CMM, the more points that define that plane, the more accurate we know it’s location. With a thousand points on a plane, we can find the 3D location of the plane to a few microns.
