66.13 PRACTICE PROBLEMS

---

1. Indicate why (one good and one bad point) the following rapid prototyping approaches are well/poorly suited to the part specified.

a) Stereolithography for a hollow ball

b) Selective laser sintering for a door hinge

c) Solid ground curing for a light bulb

d) Fused deposition modeling for a hollow box

e) Laminate object modeling for a complete model of a pyramid with the pharaohs tomb inside

2. In general what common problems are faced by all rapid prototyping techniques?

3. a) Why would a full size engine block be difficult to produce with modern rapid prototyping methods? b) How could the problems in #2a) be overcome by changing the RP technologies?

4. Describe the process of a) Selective Laser Sintering, b) Stereolithography.

5. Sketch a prototype that could be made using Selective Laser Sintering.