Abstract
In this study, we proposed that on employing the 3 dimension CAD (3D-CAD) engineers the employee must not be from scientific school. The training method might be more important after employed. So we proposed the effective training method using sample Digital Contents. No operation training of the 2D-CAD before 3D-CAD training The 2D-CAD operation training is not so important for 3D-CAD engineers, because sketch drawing operations are included in the 3D-CAD functions. According to the test the trainee had no stress on the 3D-CAD training without it. Adapting the Midrange type 3D-CAD on the First Training Step The solid type 3D-CAD might be useful for the inexperienced person on the first training step because it is easy to learn the operations (for example 23 high school students in the country side learned the operations in 3 days.). In the Solid Type 3D-CAD the object can be shaped by extruding 2D sketched profile and the shape of the object is adjusted by removing unnecessary parts. Midrange type means we can buy it comparatively cheaply, and use the software in the environment of a general personal computer. Next the surface type 3D-CAD might be used in the training course. In the Surface Type 3D-CAD, the object is shaped with combining some plains. This 3D-CAD system looks like above-mentioned Solid Type Midrange one, the trainees might be familiar with it. When they have completed two types (solid and surface) of the 3D-CAD they would be able to shape the models freely. Affectivities of the Digital Contents on Various Conditions In this case we proposed the digital contents for all training menu shown above. It is effective for time control and economical point of view because trainer does not always be with trainee. The assistant use of the Digital Contents is effective to promote 3D-CAD engineers. Everyone can learn anytime and anywhere with the digitalized manual. Training
