| 摘要 |
PROBLEM TO BE SOLVED: To provide a numerical controller improving work precision since a problem that a work track error occurs due to an error in the manufacture of a machine tool in a conventional numerical controller. SOLUTION: A static error information storage part 5 stores fulcrum position error information of respective legs 25 in a fixing member 21 and a movable member 22. A mechanism parameter which a mechanism parameter correction part 6 corrects from the directions of the legs 25, which a leg direction calculation part 4 calculates, and fulcrum position error information. An inverse mechanism conversion part 7 obtains the lengths of the respective legs 25 from the coordinate of a work track, which is calculated from a work program, and from the mechanism parameter. A driving device control part 8 drives the respective legs 25.
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