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DTU offers an introduction to rapid prototyping as part of the CAD course 41618

Course content for the 3ds Max Design part of 41618 CAD for design engineers:

You will do an exercise of modeling a 3d model in CREO and print it.
The sum of dimensions of length, width and height is not to exceed 90 mm (e.g. length 30, width 30, height 30)
Your model will be printed on our plaster printer

Plaster printer characteristics:

The model is made within a dune of plaster powder, meaning that support structures are not necessary. Closed voids are to be made with ”draining holes” to avoid entrapment of powder.
Wall thickness is to be no thinner than 1,5 mm. Plaster models are typically used for viewing purposes due to a good surface quality and little mechanic strength. The surface strength can improved with paint, lacquer, wax or epoxy.

Translation to .stl format:

Inside CREO the model is to be translated to the .stl format used by both printers. The stl translation generates a triangulated facet surface model. You should be conscious of defining the size of the triangles and the angle between them in such a way, that the model looks nice and is well defined and at the same time has a moderate .stl file size. There is no need for a model with a surface tolerance much finer than the tolerance of the printer. You should experiment with various combinations of triangle sizes and angles.
The link below opens a Quicktime movie describing file translation from Creo to 3ds Design, but the process is the same. Look what happens between 00: 29 to 00: 55

Export from Creo to 3ds Max design using .stl format

Knowledge base rapid prototypingolynet.dk/cadcam/cam - Info on CAM exercises, case studies, previous