Solidworks

How to Pierce Sketch in SolidWorks?

Understanding Pierce Relationships in SolidWorks

To effectively work with sketches in SolidWorks, it is essential to grasp how to create and utilize pierce relationships. This feature allows you to define precise constraints between sketch entities, such as lines and points, thus enhancing your design’s accuracy.

Step-by-Step Guide to Create a Pierce Relationship

  1. Prepare Your Sketch: Start by opening your solid model and navigating to the sketch environment where you want to create the pierce relationship. Ensure you have at least one line and a point (which could be a vertex or another sketch point) in the sketch.

  2. Select the Entities: Hold down the Control (CTRL) key on your keyboard. With this key pressed, click on the line and the sketch point you intend to connect. The entities will be highlighted, indicating that they are selected.

  3. Apply the Relation: Once both the line and point are selected, look for the “Add Relation” option in the property manager on the left side of the screen. You will see a list of relationships that can be applied. Choose "Pierce" from this list.

  4. Confirm the Relationship: After selecting the pierce option, the relationship will be established. You should see confirmation feedback on the screen, showing that the point now pierces through the selected line. This means that the point is constrained to lie on the line, ensuring that the geometric relationship is maintained when making modifications.

  5. Review the Constraints: If necessary, you can check the existing relations by clicking on the entities. This will show all the relationships applied to the selected sketch elements, allowing you to verify if the pierce relation is correctly established.

Additional Information

What is a Pierce Point?
A pierce point is the specific location where a profile intersects with a sketch segment, critical in sketching structural members. Typically, the default pierce point is set at the sketch origin, but this can be modified to use any designated vertex or sketch point within the profile.

Benefits of Using Pierce Relationships
Using pierce relationships allows for highly controlled and constraint-driven designs. When multiple elements need to interact precisely, incorporating pierce points ensures alignment with sketches, thereby reducing errors and design time.

Frequently Asked Questions (FAQs)

  1. Can I apply a pierce relationship between two lines?
    No, pierce relationships specifically require one sketch line and one point. They are designed to define how a point connects to a curve rather than two curves simultaneously.

  2. What happens if I move the entities after establishing a pierce relation?
    Once a pierce relation is applied, if you move the sketch point or the line, the point will adjust its position to stay aligned with the line, maintaining the constraint set by the pierce relationship.

  3. Is it possible to delete a pierce relationship?
    Yes, you can delete a pierce relation just as you would with any other relation. Select the point or line that is participating in the relationship and navigate to the relations menu to remove the pierce constraint.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.