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?
I have used this method in my travels and it works pretty well, however, I'm not sure that I can say I have ever seen a difference in doing this and scanning the area. I sometimes scan these areas then generate the scan to points and get the polar radius of the points that way.
It seems to correlate rather well with the measured feature option, but, seems to be a little faster IMO.
I have used this method in my travels and it works pretty well, however, I'm not sure that I can say I have ever seen a difference in doing this and scanning the area. I sometimes scan these areas then generate the scan to points and get the polar radius of the points that way.
It seems to correlate rather well with the measured feature option, but, seems to be a little faster IMO.
