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09 Surfaces

Curves & Surfaces

Go beyond boxes - loft, sweep, and sculpt the smooth, organic shapes that make a robot look professional.

Smooth, Flowing Shapes

Surface tools create curved shapes that basic extrudes can't.

Loft

Blends between cross-section profiles.

Sweep

Moves a profile along a path curve.

Revolve

Spins a profile around an axis.

1 Experience
2 Reflect
3 Theorize
4 Apply
Solid-Surface Hybrid Workflow
1
Start with Solids

Build the main structure with extrudes and fillets.

2
Add Surfaces for Curves

Use loft, sweep, or revolve for curved parts.

3
Stitch & Convert to Solid

Join surfaces and convert to a solid for export.

Helical Coil Spring -- swept along a helix path, demonstrating sweep surface techniques.

Stage 2 Pause and Reflect
✓ Your reflections are saved automatically
Stage 4 Apply What You Learned

Design an aerodynamic shell for a high-speed line-following robot.

  • Sketch the side profile using splines for smooth airflow
  • Create the top surface using loft between cross-sections
  • Trim and stitch surfaces into a closed solid body
  • Evaluate: is the shape manufacturable by 3D printing or vacuum forming?
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