In this tutorial, you will learn how to model a squatting-style chair in SolidWorks using curves, sweeps, and dome features. This exercise is ideal for intermediate users who want to practice 3D surface design and feature combinations.
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Skills You Will Practice
- Creating projection curves from sketches
- Using the Sweep feature with custom profiles
- Applying Geometric Relations (coincidence, midpoint, vertical)
- Adding multiple Dome features for shape refinement
Step-by-Step Instructions
1. Sketch on the Front Plane
- Draw the base outline of the chair.
- Add a fillet (radius = 100 mm).
2. Sketch on the Right Plane
- At the top: apply a Coincident relation with the endpoint.
- At the bottom: apply a Midpoint relation with the origin.
3. Create a Projection Curve
- Use Projection Curve → Sketch on Sketch method.
4. Sweep Profile
- Define a circular profile (diameter = 100 mm).
- Perform a Sweep along the projected path.
5. Sketch on the Top Plane
- Add a line or curve for the side outline.
- Apply a Midpoint relation on the right side with the origin.
6. Sketch on the Right Plane
- Add necessary lines for the secondary sweep.
- Apply Coincident and Vertical relations.
7. Create Another Projection Curve
- Again, use Projection Curve with Sketch on Sketch.
8. Perform Second Sweep
- Circular profile (diameter = 100 mm).
- Uncheck Merge Result to keep bodies separate.
9. Apply Dome Features
- Use the Dome tool, distance = 50 mm.
- Add 3 additional domes to refine the seat shape.
10. Finalize the Model
- Inspect the squatting chair geometry.
- Save your model as
.SLDPRTand export as.STEPif needed.
Tips
💡 Projection Curves are essential when your model involves intersecting sketch paths. Always double-check relations like Coincident and Midpoint to avoid rebuild errors.
💡 Dome can create smooth organic shapes quickly — try experimenting with different dome distances to achieve ergonomic designs.
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