Patent ID: 9573198
Date: 2017-02-21
CPC Classifications: B23B,F16H

Claim:
1. A system comprising: a double eccentric positioning apparatus having a hole with an axis, said double eccentric positioning apparatus comprising a first motor which operates in accordance with received first motor encoder counts and a second motor which operates in accordance with received second motor encoder counts; a vector target comprising a body supported by said double eccentric positioning apparatus, and first and second optical targets supported by said body, an axis of said first and second optical targets being coaxial with said axis of said double eccentric positioning apparatus; an optical coordinate measuring machine operable to measure coordinates of a measured hole vector based in part on light received from said first and second optical targets, said measured hole vector representing a location of said axis of said double eccentric positioning apparatus in a global coordinate system; and a computer system programmed to perform the following operations: convert the location of said axis of said double eccentric positioning apparatus in said global coordinate system into a location of said axis of said double eccentric positioning apparatus in a bushing coordinate system; computing a distance to move said axis of said double eccentric positioning apparatus in said bushing coordinate system; and converting said distance into said first and second motor counts.