How Do I Scale an Assembly in SolidWorks?

How Do I Scale an Assembly in SolidWorks?

Scaling an assembly in SolidWorks can be a useful technique to adjust the size of your model without having to redesign it from scratch. Whether you need to scale down a complex assembly for a smaller prototype or scale up a part for a larger production, SolidWorks provides you with the tools to achieve this easily.

In this tutorial, we will explore the step-by-step process of scaling an assembly in SolidWorks.

Step 1: Open the Assembly

To begin, open the assembly file that you want to scale in SolidWorks. You can either open an existing assembly or create a new one from scratch.

Step 2: Select the Components

Next, select the components that you want to scale within the assembly. You can use Ctrl + click to select multiple components at once or use Ctrl + A to select all components.

Alternatively, you can choose specific subassemblies or parts by selecting them individually.

Step 3: Access the Scale Tool

Once you have selected the desired components, access the Scale tool by going to Edit > Scale... This will open up the Scale dialog box with various options for scaling your assembly.

Step 4: Choose Scaling Options

In the Scale dialog box, you will find several options to customize your scaling operation. Let’s explore some of these options:

  • Uniform Scaling: This option allows you to scale all selected components uniformly in all directions.
  • Selective Scaling: If you want to scale certain components differently, you can uncheck the “Uniform Scaling” option and specify different scaling factors for individual components.
  • Scale About Center: By default, the scaling operation is performed about the assembly’s origin.

    You can choose to scale about a specific point by selecting the “Scale About Center” option and specifying the desired point.

  • Scaling Factor: Enter the scaling factor by which you want to scale the selected components. For example, entering a value of 0.5 will scale down the assembly to half its original size, while a value of 2 will double its size.

Step 5: Apply Scaling

Once you have selected your scaling options, click on the Apply button in the Scale dialog box to apply the scaling operation to your assembly. SolidWorks will automatically update the dimensions and positions of all selected components based on the specified scaling factor.

Step 6: Verify and Adjust

After applying the scaling operation, it is important to verify that your assembly has scaled correctly. Check for any overlapping or misaligned components that may have occurred during the scaling process.

If needed, you can make further adjustments by repeating steps 2-5.


  • Always save a backup copy of your original assembly before performing any scaling operations.
  • If your scaled assembly contains mate references or other relationships, make sure to update them accordingly after scaling.
  • If you encounter any issues or unexpected results during scaling, refer to SolidWorks documentation or seek assistance from experienced users.

Scaling an assembly in SolidWorks allows you to quickly adapt your design to different sizes or requirements. By following these steps and experimenting with different scaling options, you can efficiently scale your assemblies and save valuable time in your design process.