CS 285: SOLID MODELING

Lecture #14 -- We Mar. 8, 2000.

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Preparation

  • Complete your bevel gear cluster generator

    Design of a Gear Cluster

  • Review of the design results
  • Discussion of issues that have come up

  • "Bearings" for the wheels
  • Keeping the wheels on the axles
  • Harlan's snap lock
  • Fabrication on the FDM machine:
    -- What can we build without too much effort and with reasonable total machine time ?
    -- perhaps demonstration gear wheel pairs on a standardized stand ?

    What Lies Ahead ?

  • I want to give you a close exposure to the data structures used in solid modeling
    -- but still need to work out the "mechanics" of how to make this practical and a "good experience." --> Delayed.

  • Another design exercise next: Parts that snap together.
    -- This is very important in the manufacuring of "everyday" parts. (Sony Walkman example).
    -- Absolute dimensions are important, but shape is rather open ended.
    -- Need to take into account materials properties: elasticity, brittleness, ...
    -- Additional constraints: need to be manufacturable cheaply in large quantities (NOT FDM!).
  • Examples of snap together parts
    -- Lego "bricks"
    -- 1D chains
    -- 2D tiles
  • Assignment #5: Snap-together N-gon Tiles

  • Options on Course Project
  • Feedback questionnaire on course organization

    New Homework Assignment:

    A#5: Snap-together Parts

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