A method for altering a dimension of a part member of a furniture product designed by using a computer and manufacturing the part member by using a machining machine, comprising:
- producing and displaying the part member having a predetermined initial dimension on a computer screen as a rectangular parallelepiped space, and assigning an identification number to each of six faces of the rectangular parallelepiped space of the part member;
- setting a local three-dimensional coordinate for the rectangular parallelepiped space, a corner of which is set as an origin of the local three-dimensional coordinate, and setting a local two-dimensional coordinate on a rectangle face of the six faces of the rectangular parallelepiped space, a corner of which is set as an origin of the local two-dimensional coordinate, and two sides of the rectangle face that perpendicularly extend from the origin are set as X-axis and Y-axis;
- calculating a position of a machining that is applied to each of the six faces of the part member in accordance with a predetermined rule based on dimensions of the rectangular parallelepiped space, and designating the position of the machining by using the local two-dimensional coordinate that is set for each of the six faces of the rectangular parallelepiped space;
- selecting a machining from a plurality of types of machinings registered in machining master data stored in a memory, and registering the selected machining at a position on a face of the rectangular parallelepiped space, which the identification number in the rectangular parallelepiped space is assigned, that is designated by using the local two-dimensional coordinate of the rectangle face;
- altering the dimensions of the rectangular parallelepiped space of the part member upon a request from a customer, and thereby altering a local two-dimensional coordinate position of the machining registered on the face of the rectangular parallelepiped space, to which the identification number in the rectangular parallelepiped space is assigned, in accordance with the predetermined rule;
- and
- transmitting the selected machining registered on a face of the altered rectangular parallelepiped space to a computer aided manufacturing (CAM) system of the machining machine together with the identification number of the face of the rectangular parallelepiped space, wherein a toolpath is prepared in advance by the CAM of the machining machine for the machining registered in the machining master data so that the machining is provided on a face of a panel that is machined by using a tool of the machining machine, the panel being machined to produce the part member,
- wherein the machining is provided on the face of the panel by placing the panel having the dimensions of the rectangular parallelepiped space on a machining table of the machining machine such that a corner of the panel matches with a machine origin of the machining machine, and
- wherein the two-dimensional position of the machining registered on the face of the rectangular parallelepiped space is converted into a two-dimensional position of the face of the panel so that the tool of the machining machine is applied to the face of the panel in accordance with the toolpath.