Robot system, calibration method, and method for producing to-be-processed material

A calibration method for calibrating coordinates of a robot operated by a control device, the robot comprising a tool mounted to a distal end of the robot, the tool comprising two planes orthogonal to each other, and

• the calibration method comprising:
• detecting a reference position determined by pressing the two planes of the tool against at least one of a work table and a calibration jig fixed to the work table;
• and
• based on the reference position, calibrating the coordinates of the robot to be used by the control device.

A method for producing a to-be-processed material to be processed on a work table by a robot operated by a control device,

• wherein the robot comprises a tool mounted to a distal end of the robot and comprising two planes orthogonal to each other,
• wherein a calibration jig is fixed to the work table, and
• wherein the method comprises
• detecting a reference position determined by pressing the two planes of the tool against at least one of the jig and the work table,
• based on the reference position, calibrating coordinates of the robot to be used by the control device, and
• processing the to-be-processed material using the calibrated coordinates of the robot.