Use the Make Path tool to create
machine design layout sketches. For example, you can model cam profiles
where the tangent relation between the cam and a follower automatically
transitions as the cam rotates. A path enables you to create a tangent
relation between a chain of sketch entities and another sketch entity.
Once you have created a path, all the sketch entities in the path are
selected simultaneously. To select an individual sketch entity in the
path, right-click and choose Select Other.
To create a path:
Sketch a model to represent a cam and another
model to represent a follower.
Make each sketch a block, and position the cam
below the follower.
Although not required, making
the sketches blocks
provides more control of the sketches.
Select an arc on the cam and click Make
Path (Sketch toolbar) or Tools,
Sketch Tools, Make
In the Path
Properties PropertyManager, under Definition,
click Edit Path.
Add the remaining sketch entities that form the
chain for Selected Entities, then
Click Add Relation
(Dimensions/Relations toolbar) or Tools,
Add relations to the cam and follower to prevent motion that
is extraneous to the intended motion between cam and follower.
Add a Tangent
relation between the top arc of the cam and the bottom sketch entity of
Rotate the cam to preview the motion.