Does the CADNO Calliper measure taper (diameter difference at opposite ends of the roll barrell)?
Yes. If the instrument is ‘zeroed’ at one end of the roll barrell, then the reading at the opposite end is a true measure of the taper. A dramatic demonstration of the accuracy of the instrument is to measure a roll from operator to drive and then remove the calliper and from the other side of the roll measure it from drive to operator. Within a few microns, the same value of taper will be displayed – only the sign being different!
