CS 285: SOLID MODELING
Lecture #13 -- Mo, Mar. 11, 2002.
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Preparation
READ: Paper Scheduled for Discussion McMains et. al.
Paper Presentation and Discussion
Motivation:
- We want to build parts on the FDM machine from a (natural) CSG description.
- Doing clean Boolean operations in 3D is difficult.
- Doing clean offset surfaces in 3D is very difficult.
-- How would YOU do that ?
- Since layered manufacturing works in 2D layers,
we can defer these two difficult operations to the individual planes.
Address the following points:
- How do 2D Booleans implement the 3D Boolean operation?
- How do 2D offset contours implement 3D offset surfaces?
- How does this relate to making thin-walled parts?
- Which are the "tricky" areas of making a thin walled part with layered manufacturing?
- How does this relate to the QuickSlice "Fast"-option?
- How are the contour offsets generated?
- What is the role of the Voronoi mountain?
Results
Test parts made by Jordan Smith.
Testing the Prototypes of the Snap-together Tiles
Any problems encountered?
New insights on making FDM parts?
How could you mass-produce your tiles?
New Homework Assignments:
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