The present invention relates to a 3D design modeling apparatus in an AM drawing environment and a 3D model modeling method using the same, and a model modeling method according to an embodiment of the present invention includes a first XY view, a first YZ view, Recognizing the inputted two-dimensional shape information of the equipment to be modeled when the equipment to be modeled is input to any one of the views, a step of recognizing a first point corresponding to a part of the equipment from the user on the view inputting the equipment Dimensional coordinate of the first point is recognized, and when receiving the second point corresponding to the first point on the view excluding the view in which the equipment is input, the two-dimensional coordinate of the second point is recognized Dimensional coordinates of the first point and the two-dimensional coordinates of the second point to generate three-dimensional coordinates corresponding to the first point of the equipment, And outputting the three-dimensional shape information to at least one of the first XY view, the first YZ view, and the first XZ view. As described above, according to the present invention, it is possible to perform update of a view after performing modeling by reducing the time required for updating, thereby enabling a user to perform a modeling operation in real time.
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