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Click Rack Joint
in the Kinematics Joints toolbar or select Insert > New
Joint > Rack... from the Menu bar.
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Select Prismatic.2 in the specification tree.
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Select Revolute.1 in the specification tree
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Assign a command, for instance select Angle driven
for revolute check box
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Click Ok to end the rack joint creation.The
rack joint is created and identified in the specification tree. Your
mechanism can be simulated, a warning message is displayed.
Now expand the rack joint you have just created, the
embedded leaf joints are displayed. |
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Note: the joints involved in a
compound joint can be neither edited nor deleted directly. |
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Double-click Mechanism.1 to launch the simulation with
commands functionality.
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Open the
Rack_Result.CATProduct document to check your result
Now let's modify the ratio |
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Double-click Rack.3 in the specification tree.
The Joint Edition dialog box is displayed:
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Click the Define button.
The Rack Ratio Definition dialog box appears:
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Select a circle in the geometry area
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The ratio is automatically calculated |
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Click Ok
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Notes:
- To create a rack joint, the prismatic and revolute joints
involved in the rack joint must rely on a same support part. See
picture below: (P stands for Part, R for Revolute, Pris. for
Prismatic)
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