How to Add Bevel Depth to a Curve in Blender

Adding bevel depth to a curve in Blender is the fastest way to transform a thin 2D or 3D path into a solid object like a pipe, cable, or stylized wire. This guide explains how to locate the curve properties menu, adjust the bevel depth value, fill the open caps, and fine-tune the smoothness of the generated geometry.

Step-by-Step Guide to Adding Bevel Depth

  1. Select the Curve: Click on the curve object in the 3D Viewport.
  2. Open Object Data Properties: In the Properties panel on the right side of the screen, click on the green curve icon (Object Data Properties).
  3. Expand Geometry: Click on the Geometry dropdown menu to reveal the extrusion and bevel settings.
  4. Adjust Bevel Depth: Scroll to the Bevel sub-section, ensure the tab is set to Round, and increase the Depth value until the curve reaches your desired thickness.

Helpful Bevel Options

  • Fill Caps: Check the Fill Caps box directly below the Bevel settings to seal the open ends of the curve.
  • Resolution: Increase the Resolution value under the Bevel menu to add more segments around the circumference, resulting in a smoother tube.
  • Convert to Mesh: If you want to perform standard mesh editing on the beveled object, right-click the curve in the 3D Viewport and select Convert To > Mesh.