Abstract: Provided is a tool-path generating device that includes a point-sequence generating unit that generates a point sequence that represents a tool path on the basis of a machining program, and a smoothing unit that smooths the generated point sequence. The smoothing unit includes a filter-length setting unit that sets filter lengths that are applied to the points such that a pre/post-smoothing divergence amount of each point in the point sequence is equal to or less than a first threshold, a filter-length changing unit that changes the set filter lengths such that an absolute value of a difference between the filter lengths applied to adjacent points in the point sequence is equal to or less than a second threshold, and a filter processing unit that performs filter processing on the basis of the changed filter lengths.

Abstract: A controller includes a reference-sphere position obtaining unit that obtains coordinate values, on three linear axes, of a reference sphere placed on a table. The coordinate values are measured by controlling the three linear axes while a target rotation axis for which rotation axis center position is to be measured is positioned at three or more locations. The controller includes a rotation-axis commanded-angle obtaining unit that obtains commanded angles given to the target rotation axis during obtainment of a position of the reference sphere. The controller includes an approximate circle calculating unit that calculates an approximate circle passing near the coordinate values of the reference sphere on the three linear axes under a constraint of the commanded angles. The controller includes a rotation axis position storage unit that stores a center position of the approximate circle as coordinates of a center position of the target rotation axis.

Abstract: Provided is a tool-path generating device that includes a point-sequence generating unit that generates a point sequence that represents a tool path on the basis of a machining program, and a smoothing unit that smooths the generated point sequence. The smoothing unit includes a filter-length setting unit that sets filter lengths that are applied to the points such that a pre/post-smoothing divergence amount of each point in the point sequence is equal to or less than a first threshold, a filter-length changing unit that changes the set filter lengths such that an absolute value of a difference between the filter lengths applied to adjacent points in the point sequence is equal to or less than a second threshold, and a filter processing unit that performs filter processing on the basis of the changed filter lengths.