How Do You Stop Parts From Moving Through Each Other in SolidWorks?

In SolidWorks, it is crucial to prevent parts from moving through each other, especially when designing assemblies. This ensures that the components interact correctly and avoids any interference issues. In this tutorial, we will explore different methods to stop parts from moving through each other in SolidWorks.

Method 1: Using Mate References

Mate references are a powerful tool in SolidWorks that allows us to define specific geometric features as references for mating components. By using mate references effectively, we can ensure that parts stay in their intended position and do not move through each other.

To use mate references, follow these steps:

  1. Create mate references: Open your assembly and select the component you want to stop from moving. In the PropertyManager, go to the Mate References tab and select a face or an edge of the component as a reference.
  2. Use mate references: Now select the mating component and choose an appropriate mate option like coincident, concentric, or distance. When selecting the reference for mating, click on the reference created in step 1.

Using mate references ensures that components are locked in place relative to their reference geometry. This prevents any unwanted movement or interference between parts.

Method 2: Defining Collision Detection

SolidWorks provides collision detection tools that help identify interferences between parts in an assembly. By enabling collision detection, you can visualize and fix any movement issues before they become problematic.

To enable collision detection, follow these steps:

  1. Enable Collision Detection: In your assembly environment, go to Tools > Options > System Options > Assemblies. Check the “Enable Collision Detection” box.
  2. Run Collision Detection: Click on the Collision Detection icon in the Assembly toolbar or go to Tools > Collision Detection. SolidWorks will now analyze the assembly for any interferences.
  3. Resolve Interferences: Once interferences are detected, you can either manually move the components to resolve them or use mates to constrain their movement.

By using collision detection, you can proactively identify and resolve any potential movement issues, ensuring that parts do not move through each other.

Method 3: Utilizing Limit Mate

The Limit Mate feature in SolidWorks allows you to restrict the range of motion between two components. By specifying minimum and maximum limits, you can effectively stop parts from moving through each other within defined boundaries.

To use the Limit Mate feature, follow these steps:

  1. Create a Limit Mate: Select the two components you want to restrict movement between. Go to Insert > Mate > Mechanical Mates > Limit Mate.
  2. Define Limits: In the PropertyManager, set the desired limits for translation or rotation along each axis. You can specify values directly or use references from existing geometry in your assembly.

The Limit Mate feature is particularly useful when dealing with complex assemblies where precise control over component movement is required. It ensures that parts stay within defined boundaries and do not move through each other.


In SolidWorks, preventing parts from moving through each other is essential for creating accurate assemblies. By using mate references, enabling collision detection, and utilizing limit mates, you can ensure that components stay in their intended positions and avoid interference issues. These methods provide precise control over component movement and help create robust designs.

Remember to carefully consider the specific requirements of your assembly and choose the appropriate method to stop parts from moving through each other. With practice, you will develop a solid understanding of these techniques and achieve seamless assemblies in SolidWorks.