To detect a bladed disk in-situ during its production,a dedicated articulated arm coordinate measuring machine( CMM) was developed. The structure of the machine was realized by a combination of linear-linear-rotational motions,which makes it possible for the machine to cover a large measurement range within limited room for mounting,so that the demands of the task can be met. To calibrate the parallelism between the linear and the rotational axes of the machine,a new method was put forward. In this method,a...