Translation/rotation error compensation amount creating device

A numerical controller controlling a multi-axis machining apparatus having at least two rotation axes,

• the numerical controller comprising:
• a numerical control section that analyzes a machining program to carry out interpolation;
• and
• a translation/rotation error compensation amount creating device that creates a translation error compensation amount and a rotation error compensation amount both depending on the rotation axes,
• the translation/rotation error compensation amount creating device comprising:
• an assembly error setting section that presets an assembly error including at least an assembly error in a table surface or an assembly error in a spindle turning centerline in the multi-axis machining apparatus;
• a translation/rotation error compensation amount calculating section that calculates the translation error compensation amount and the rotation error compensation amount based on the assembly error set by the assembly error setting section and positions of the two rotation axes;
• and
• a translation/rotation error compensation amount input section that inputs the calculated translation error compensation amount and the rotation error compensation amount to the numerical controller.