Abstract: The 3D solid modeling is used widely in the design of machine production. But,
the 2D drawing is still essential in production manufacturing and in technical exchanging. In order
to construct the 2D drawing from 3D solid model, the engineering drawing module is developed
based on AutoCAD with the secondary development tool ObjcetARX. Constructing the 2D
drawing from a 3D solid model and automatic dimension are realized, and the 2D drawing is
created in the model space which makes the user’s operation more convenient. An example shows
that the engineering drawing module can extract the information of the 2D drawing from the 3D
features solid and can construct 2D drawing rapidly. The design efficiency can be enhanced
greatly.

Key words: computer application, engineering drawing module, secondary development;
ObjectARX, AutoCAD