Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001

65.13 PRACTICE PROBLEMS

 

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

 

  1. a) Stereolithography for a hollow ball
  2. b) Selective laser sintering for a door hinge
  3. c) Solid ground curing for a light bulb
  4. d) Fused deposition modeling for a hollow box
  5. 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.