Shaping machine system and computer program for controlling a shaping device

A shaping machine system comprising:

• a shaping device comprising:
• at least one rotatable jig mount body for mounting a jig, the jig supporting a workpiece,
• a shaping tool support body for supporting a shaping tool to shape the supported workpiece,
• a first drive device for rotating the supported shaping tool, and
• a second drive device for at least moving the shaping tool support body, moving the at least one rotatable jig mount body, or changing a position of the supported shaping tool relative to the supported workpiece;
• and
• a computer comprising:
• an input unit for receiving a selection of the jig and a selection of the shaping tool, the jig selected from a plurality of jigs of different types, and the shaping tool selected from a plurality of types of shaping tools,
• a shape data reading unit for reading shape data representing a shape of the supported workpiece after the supported workpiece is shaped,
• a shaping data producing unit for producing shaping data for controlling the first and the second drive devices according to at least the type of the jig, the
• produced shaping data, or a type of the selected shaping tool, and
• a drive control unit for controlling the first and second drive devices according to the produced shaping data;
• a jig position measuring unit for measuring a position of the selected jig when a detection pin contacts the selected jig in response to the second drive device moving the detection in toward the selected jig;
• a position error detecting unit for detecting a position error of the selected jig by comparing the measured position of the selected jig to a predetermined jig position, the detected position error being a difference between the measured position of the selected jig and the predetermined jig position;
• and
• a shaping data correcting unit for correcting the produced shaping data according to the detected position error,
• wherein:
• the shaping tool support body comprises:
• a main body,
• a rotating body driven by the first drive device and for mounting the supported shaping tool, and
• a bearing interposed between the main body and the rotating body for supporting rotation of the rotating body relative to the main body;
• the shaping device further comprises:
• a power source for applying a voltage between the main body of the shaping tool support body and the selected jig, and
• a detection unit for detecting a current flowing between the main body and the selected jig via the bearing or for detecting a resistance value between the main body and the selected jig;
• and
• the jig position measuring unit comprises:
• a detection pin moving unit for moving the detection pin toward the selected jig under control of the second drive device, the detection pin supported by the rotating body,
• a contact determination unit for determining that the detection pin has contacted the selected jig when the detected current value is equal to or greater than a predetermined current value or when the detected resistance is equal to or less than a predetermined resistance value, and
• a measuring unit for measuring a position of the selected jig when the contact determination unit determines that the detection pin has contacted the selected jig;
• at least moving the detection pin, determining contact between the detection pin and the selected jig, or measuring the position of the selected jig is performed a plurality and odd number of times;
• and
• the position error detecting unit is further for detecting the position error based on a median value of the measured positions of the selected jig.