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Detecting Interference

You can use Motion Studies to check for interference in your design as the parts move. You can check any of the components in your SolidWorks assembly model, regardless of whether a component participates in the motion model.

Using the interference detection capability, you can find the following:
  • Interferences that occur between the selected components as the assemblies move through a specified range of motion.
  • The place where the first interference occurs between the selected components. The assembly is moved to the position where the interference occurred.

To initiate an interference check between components:

  1. Right-click the assembly in the MotionManager design tree and select Check Interference.

    The Find Interferences Over Time dialog box appears.

  2. Click in the graphics screen and select two or more components to appear under In Parts and Frames.
  3. Set Start Frame to the motion frame to use as the starting position for the interference check.
  4. Set End Frame to the motion frame to use as the final position for the interference check.
  5. Increment sets the increment between frames checked. For example, setting the increment to 2 checks every other frame, starting at the frame set in Start Frame.
  6. Select Find Now to start the interference check.

    The list at the bottom displays detected interferences. The frame, simulation time, parts that cause the interference, and the volume of the interference detected are listed. Selecting the Index number for an interference enables the Details and Zoom to Selection buttons:

    • Click Details to display more information about the interference.
    • Click to zoom in on the location of the interference.

  7. If necessary, click Stop to stop the check.
  8. To clear all selections and select new components to check, click New Search.


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