CS 285: SOLID MODELING
Lecture #9 -- We Feb. 16, 2000.
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Homework #3 -- Escher Ball Design
- Check out latest results.
- More on fundamental zone.
- How to make interlocking shapes.
- Any new useful tricks for this assignment ?
Fabricating the Escher Ball
- Saving material and build time.
- Making "hollow" parts.
- Calculating thin walls automatically.
Layered Manufacturing of Thin-Walled Parts
Read paper !
Interfacing with Quickslice at the SSL-Level
We are building a new design / fabrication pathway to properly resolving boolean CSG operations
-- even for curved surfaces !
- Design with SLIDE, using boolean CSG operations.
- Slice the design with Sara McMains' slicer program,
which slices all shells individually and preserves the boolean relationships for the output contours.
- This output is represented in a machine-neutral representation called L_SIF.
- We then resolve the boolean operations in 2D -- one layer at a time. (This is much easier than in 3D).
- This new L_SIF representation with resolved boleans is then converted to SSL and fed to QuickSlice.
- In this way we maintain unambiguous control over the build geometry.
- QuickSlice still computes the support volumes and calculates the roads.
Introduction to Gear Design
Read paper !
Experiment with gear demo program.
READ: Handout on Gears
Study this carefully; bring your specific questions to class.
Current Homework Assignment:
A#3: Symmetry ! --> Design an "Escher-Ball
Next Homework Assignment:
A#4: Gear Design
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