Chapter 4 — Design-Intent Features Revolves · sweeps · symmetry · draft · patterns · shell · ribs (Weeks 7–9)

Drill 1 · Read the Figure, Name the Feature

Which feature does each described shape call for? Recognition is half of CAD speed. Check when done.

Tool · Bolt-Circle / Circular Pattern Calculator

Equally spaced holes on a bolt circle

Model ONE hole (the seed), then circular-pattern it. This gives the spacing angle and each hole's X-Y position from the center — handy for checking a CSWA pattern.

Result appears here.

Drill 2 · Molded-Part Feature Order

Put the molded-part features in the order they must be built. Match each to its position. Check when done.

Chapter 4 Self-Quiz