Feature-Based Modeling (CSG)

LECTURE PRESENTATION

Reading Assignment

Outline

Two basic methods of Solid Modeling

Constructive Solid Geometry CSG Method

Primitives + Booleans

Boundary Representation (Brep)

Boundary + Sweeps

Feature-Based Modeling is the CSG Method

Primitives

Sphere

Block

Cone

Cylinder

Torus

Boolean Operations

Union

Intersection

Subtraction

History (time stamp order)

Best Practice – One solid body per part file

Some special cases that cause difficulty

Nonmainfold Solid

Splitting a body into multiple solids