Assemblies · Lesson 3: Advanced and mechanical mates
Limit, width, symmetric, path, linear coupler and mechanical mates.
Lesson goal
Model realistic motion: limited travel, centering, mechanisms and kinematic joints.
6 videos
1 exercise
Intermediate
Prerequisite: Lesson 1
1. Watch the videos
Dassault Systèmes videos hosted on MySolidWorks: they open in a new tab and a free account is enough. Watch them in order.
Video 1▶Advanced Mates: Limit MateAllow motion between two distance or angle values.↗
Video 2▶Advanced Mates: Width MateCenter a component between two faces.↗
Video 3▶Advanced Mates: Symmetric MatePlace two entities symmetrically about a plane.↗
Video 4▶Advanced Mates: Path MateMake a point of the component follow a path.↗
Video 5▶Advanced Mates: Linear Coupler MateLink the translation of one component to that of another.↗
Video 6▶Mechanical MatesCam, gear, rack and pinion, screw, universal joint, hinge.↗
2. Key takeaways
The limit mate gives real travel: a cylinder between its retracted and extended positions.
The width mate centers a part in a slot, even if dimensions change.
Mechanical mates (gear, rack and pinion, screw) transmit motion from one component to another.
These mates also let you check for collisions over the full travel of the mechanism.
Tip
Combine a limit mate with collision detection while moving the component: you see right away if the mechanism catches at the end of travel.
3. Do the exercise
On a rack and pinion mechanism:
- mate the pinion to rotate about its axis
- add a rack and pinion mate
- limit the rack travel to 100 mm
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