Edit the Joint Properties

1. Click the View Face command, and then select the front face of the cam.
2. In the browser, expand Contact Joints. Right-click 2D Contact, and select Properties.

   The Z axis of the cam points away from the cam. If the Z axis pointed inward, you would open the properties dialog box for the 2D contact joint and invert the normal direction of the Z axis for the cam. Likewise for the valve, if the Z axis pointed inward, you would invert the Z axis.

   

   The fact that the Z axis points away from the cam indicates that it is the outer surface of the part rather than the inner surface of a hole or cut. In this case, the Z axis must always point out away from the part material rather than into the part material.

3. Expand the dialog box, then select Normal, and set the scale to 0.003.
4. Select Tangential, and set the scale to 0.01.
5. Click OK.

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