have completed the vacuum cleaner model and have used intersecting
and trimming to create a detailed, complex model.
Important concepts to
take forward to future modeling projects are:
- The technique of overbuilding surfaces,
and then intersecting and trimming them can be used to create detailed
- For more complex models, use layers to
organize the geometry and control how the objects display on the
- For a concept model, it is common to
leave the surfaces overlapping as the design goes through revisions
and changes. The overlapping surfaces will not be seen when the
model is shaded and viewed.
- For a detailed, finished model, all the
surfaces should be intersected and trimmed, to create a single,
enclosed outline. This can be used to create rapid prototyping models
and be exported to engineering CAD systems.