Creating Slide Curve Joints

This task shows how to create slide curve joints in a V5 mechanism.

Open the SlideCurve_without_kin.CATProduct document.

When you create joints, you can define the mechanism within the same dialog box. Remember though, that you create a mechanism independently from the joints by selecting Insert > New Mechanism... from the menu bar.

  1. Click the arrow within the Revolute Joint icon in the Kinematics Joints toolbar.

  2. Undock the Kinematics Joints toolbar.

  3. Select Slide Curve Joint .The Joint Creation: Slide Curve dialog box is displayed

  4. Click New Mechanism. The Mechanism Creation dialog box is displayed:

    In our example, keep the default name Mechanism.1.

  5. Select Curve 1 either in the geometry area or in the specification tree. In our example, select the yellow sphere arc as shown below:

  6. Select Curve 2 either in the geometry area or in the specification tree. In our example, select the line on the green part as shown below:

  7. Click Ok to end the slide curve joint creation.

    Now create a second joint (revolute joint) and a third joint (prismatic joint)

    For more information, refer to About Joints, Creating Revolute Joints and Creating Prismatic Joints.


    • select line .1  (right white lines)

    • select line.2 (left white lines)


    • select xy plane ( green) (plane 1)

    • select xy plane  (white lines)  (plane2)

    • when done click OK



    • select line.1 

    • select line.2 as shown below:

    select xy plane (white lines) (plane 1)

    select xy plane  (yellow sphere)  (plane2)

    when done click OK

  8. You forgot to assign the command:

    • Double-click Revolute. 2  in the specification tree  

    • Select the Angle driven check box in the Joint Edition: Joint. 2 dialog box displayed

    • When done, click Ok

    This is what you obtain:

  9. Click Fixed Part in the DMU Kinematics toolbar or select Insert > Fixed Part... from the menu bar. The New Fixed Part dialog box is displayed.

  10. Select the fixed part either in the geometry area or in the specification tree. Here, select the green sphere. The specification tree is updated accordingly.

    The mechanism can be simulated.

  11. Double-click Mechanism.1 in the specification tree
    The Kinematics Simulation - Mechanism 1 dialog box is automatically displayed.

    Note: if there are laws defined in the mechanism, the simulation with laws functionality will be launched automatically.
    Manipulate the slider of the command


Open the SlideCurve_ with_kin.CATProduct  to check your result.

It is impossible to create slide curve joints if the parts involved in the joint are not well positioned.
For more detailed information, refer to Tips for Curve or Surface Joints Creation