Controller and control system

A control system, comprising:

• a controller that controls machining of a workpiece;
• and
• a photographing device that photographs the workpiece under machining operation and outputs a three-dimensional model of the workpiece under machining operation, wherein
• the controller includes an image acquisition unit that acquires the three-dimensional model of the workpiece under machining operation,
• a checking unit that compares the three-dimensional model of the workpiece under machining operation and a three-dimensional model generated by a machining simulation with each other,
• a calculation unit that determines a presence or absence of a machining defect based on a result of the comparison and modifies a setting depending on a cause of the machining defect when it is determined that the machining defect is present and re-machining is possible, and
• an instruction distribution processing unit that executes additional machining based on the modified setting.

A controller, comprising:

• a checking unit that acquires a three-dimensional model of a workpiece under machining operation and compares the three-dimensional model of the workpiece under machining operation and a three-dimensional model generated by a machining simulation with each other;
• a calculation unit that determines a presence or absence of a machining defect based on a result of the comparison and modifies a setting depending on a cause of the machining defect when it is determined that the machining defect is present and re-machining is possible;
• and
• an instruction distribution processing unit that executes additional machining based on the modified setting.