Abstract
There are many influencing factors on making measurements of out of roundness. These are stylus length, stylus force, probe calibration, thermal drift, alignment, and so on. The measurements are carried out with the spindle measuring instrument Talyrond 62. The probing system is calibrated with the aid of amplifier standards (Flick). In this paper, influencing factors are checked one by one. And finally, alternative probe calibration will be proposed.
