I need to measure a dimension to the centerline of a radius, but the radius is 2" and only covers an arc of about 25 degrees. Measured on the optical comparator, the radius is nearly nominal, but on the CMM it measures 2.117". This throws my centerline over .100" out of position. How can I create a centerline from points on the radius using the nominal radius? Can I force PC-DMIS to best fit a 2" radius to points on the surface?
Pull the nominal CIRCLE from the radius in CAD, I'm assuming that you have CAD, set your origin at the center of the circle and then take polar radius hits on the arc. This is the only way I've ever gotten PCDmis to work for small cicrle segments.
Pull the nominal CIRCLE from the radius in CAD, I'm assuming that you have CAD, set your origin at the center of the circle and then take polar radius hits on the arc. This is the only way I've ever gotten PCDmis to work for small cicrle segments.