CSWP Segment 3 is the biggest. Build an assembly, mate it (often a mechanism), and report the center of mass. This calculator combines three components exactly as the exam expects.

Tool · Assembly Center-of-Mass Calculator (up to three components)

Combine components' centers of mass

COM = Σ(mᵢ·rᵢ) / Σmᵢ, per axis. Read each component's mass and centroid from its own Mass Properties (relative to the assembly coordinate system), then combine here. Leave a mass at 0 to skip it.

Result appears here.

If the assembly is symmetric about a plane, predict which COM coordinate stays put before you compute.

Drill · Mates and Mechanisms

Match each situation to the right mate or idea.

Chapter 5 Self-Quiz