How Do You Link Dimensions in SolidWorks?

Linking dimensions in SolidWorks allows you to establish relationships between different dimensions in your design. This can be incredibly useful when creating parametric models, as it allows you to maintain design intent and make changes efficiently. In this tutorial, we will explore how to link dimensions in SolidWorks and leverage their power.

Why Link Dimensions?

Before we dive into the process of linking dimensions, let’s understand why it is important. In a parametric model, changing one dimension can have a cascading effect on other related dimensions. By linking dimensions, you ensure that these relationships are maintained automatically, saving time and effort during design changes.

Linking Dimensions in Sketches

The first step in linking dimensions is creating a sketch. Once you have your sketch ready, follow these steps to link the dimensions:

  1. Select the dimension: Hover over the dimension value until it becomes highlighted. Click on it to select it.
  2. Right-click and choose “Link Value”: Right-click on the selected dimension and select “Link Value” from the context menu.
  3. Select the Target dimension: In the “Link Value” dialog box that appears, select the Target dimension from another sketch entity or feature.
  4. Click “OK”: Once you have selected the Target dimension, click “OK” to establish the link.

Note that when you link two dimensions together, one becomes a driving dimension while the other becomes a driven dimension. Modifying the driving dimension will update the driven dimension accordingly.

Editing Linked Dimensions

If you need to edit a linked dimension, follow these steps:

  1. Select the linked dimension: Click on the linked dimension to select it.
  2. Right-click and choose “Edit Link”: Right-click on the selected dimension and select “Edit Link” from the context menu.
  3. Change the driving dimension: In the “Edit Link” dialog box, modify the driving dimension as desired.
  4. Click “OK”: Once you have made your changes, click “OK” to update the linked dimensions.

This way, you can easily modify linked dimensions without breaking any relationships or constraints within your design.

Linking Dimensions in Features

In addition to linking dimensions in sketches, you can also link dimensions within features like extrusions, cuts, fillets, etc. The process is similar:

  1. Edit the feature: Double-click on the feature to open its properties.
  2. Select the dimension: Click on the dimension value to select it.
  3. Select the Target dimension: In the “Link Value” dialog box, choose a Target dimension from another sketch entity or feature.
  4. Click “OK”: Confirm your selection by clicking “OK”. The dimensions are now linked within the feature.

Tips for Effective Dimension Linking

To make your design process more efficient and maintainable, consider these tips when linking dimensions in SolidWorks:

  • Plan ahead: Before starting your design, think about the dimensions that are likely to change together. Identifying these relationships early on will help you establish meaningful links.
  • Organize your sketches: Keeping related sketches together and naming them appropriately will make it easier to find and link dimensions when needed.
  • Use global variables: Instead of directly linking dimensions, consider using global variables. This allows you to change multiple dimensions simultaneously by modifying a single global variable.

With these techniques in mind, you can harness the power of linked dimensions in SolidWorks and streamline your design workflow. Remember to experiment and practice regularly to become proficient in dimension linking!