Abstract
In the on-machine measurement, the tilt error in loading of the probe to the machine affects to the measuring accuracy. To achieve the automatic machining and measurement system, it is necessary for the measuring probe to escape away from the machining point to avoid interference and exposure to wet condition in machining. So this probe escape system needs to be repeatable in the tilt error. In this report, the relation between the repeatability of probe tilt error and measuring accuracy is calculated and evaluated.