Congratulations! You 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 designs.
• For more complex models, use layers to organize the geometry and control how the objects display on the screen.
• 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.