Home » How to do Boundary Cut in SolidWorks?

Solidworks come which various features and options which let the designer design the parts in a faster way. These features help in designing precise components and parts. The reference can be taken from existing parts or can be self define. There are thousands of options and modules available in SolidWorks. These models are used in various industries and target various domains.

For Example, We have SolidWorks Simulation and flow simulation which targets the FEA and CFD analysis. To check the strength and behaviours of a part or object in close to practical conditions. Then we have SolidWorks Electrical and PDM for electrical component designing and modelling. Likewise, we have in total of 7 to 8 modules in SolidWorks.

Boundary Cut feature in Solidworks


In this article are going to look after of specific feature of SolidWorks which is Boundary cut. We not only going to know about that is feature is for but also how to use this feature. The boundary cut feature is kind of similar to the cut extrude feature. But in the boundary feature, we can define the profile at the start and end of the but. Whereas in cut extrude the same profile was cut out from the part.

You can provide the path to the cutting profile. The boundary cut is similar to the Swept cut and lofted cut in which we can define the direct path to the profiles.

Using the Boundary Cut feature

Open the SolidWorks part design by going to New > Part.

Draw the geometry you can or you can open the previously created part. The part on which you want to remove the material using the boundary cut feature.

Select the plane or the face on which you want to create the first or starting profile. Exit the sketch when the profile is created. Select the other plane and draw the second or ending profile. Exit the sketch. Now lastly create the direct line or curve or we can say the guided line or curve.

Click on the Features tab under the command manager. Select the Boundary cut option. Make sure you are out of the sketch option or else it will not enable this option.

Under property manager Under Direction 1 Select the starting profile. Then select the second or ending profile. You will see the yellow shape appears. This shape is what is going to remove the material from the body. You can select the guided curve or line in Direction 2. Then press OK if your boundary cut preview is good.

After selecting the line or curve the profile will follow the path and will convert to take the shape of the second profile. This way we can create any type of cut by following any path. We have to keep in mind that the profile created and guided curve or line should be intersected. If the curve and profiles are not intersected then Direction 2 will be of no use. This will create an error while pressing OK.

You can make changes at any step after applying the feature. You can make changes to the profile or to the guided curve. Also, you can select more than 2 profiles under Direction 1 and select more than the one direction curve or guided curve in Direction 2.


Tips and Best Practices

Here are some tips and best practices for working with boundary cuts in Solidworks:

  1. Choose the Right Boundary Surface:
  • Select a surface that fully encloses the area you want to cut. Incomplete boundary surfaces can lead to errors or unintended consequences when creating a boundary cut.
  • For more complex models, consider breaking up the boundary surface into smaller, more manageable sections.
  1. Use the Intersect Tool:
  • Before creating a boundary cut, use the Intersect tool to confirm that the boundary surface and the target solid intersect as intended.
  • This will help you catch any issues early on and ensure that the boundary cut will produce the desired results.
  1. Pay Attention to the Direction of the Cut:
  • When creating a boundary cut, it’s important to pay attention to the direction of the cut. This can be controlled by the selection of the cutting surface and the solid to be cut.
  • The cut can be either an outside cut or an inside cut, so it’s important to choose the appropriate direction based on your design needs.
  1. Check for Self-Intersections:
  • After creating a boundary cut, check for any self-intersections or overlaps in the resulting solid.
  • These issues can cause problems when attempting to perform subsequent operations on the model, such as filleting or chamfering.
  1. Practice, Experiment, and Refine:
  • As with any new tool or technique in Solidworks, it’s important to practice and experiment with boundary cuts in a controlled setting before incorporating them into larger, more complex models.
  • Over time, you can refine your approach and learn how to anticipate and troubleshoot common issues that may arise.

By following these tips and best practices, you can improve your workflow when working with boundary cuts in Solidworks and create more efficient, error-free models.


  • Boundary cuts are a useful tool for creating complex 3D models in Solidworks
  • To create a boundary cut, you need to select a sketch plane, draw a sketch for the cut, create a boundary surface, and create the boundary cut itself
  • When working with boundary cuts, it’s important to choose the right boundary surface, pay attention to the direction of the cut, and check for self-intersections
  • By practicing and experimenting with boundary cuts in a controlled setting, you can refine your approach and create more efficient, error-free models

Readers are encouraged to experiment with boundary cuts in their own 3D models and to use the tips and best practices outlined in the tutorial to improve their workflow. With a bit of practice and experimentation, readers can leverage the power of boundary cuts to create more complex and detailed models in Solidworks.