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Modeling > Creating Surfaces > Creating Extrusion surfaces
Creating extrusion surfaces
Extrusion pushes a 2D curve along an axis to create a 3D Surface.
The axis is a line coming out of the viewport in which you draw the curve. For example, if you draw a curve in top view and extrude it, it is extruded along the Y axis.
To create a surface by extrusion:
- Draw a curve. See Drawing a freeform curve .
- Adjust the curve keeping the following in mind:
- AXEL does not use the curve's steps parameter in the creation of the surface, so a smooth curve does not create a smooth extrusion.
- You can refine the curve after you create the extrusion since the curve remains linked to the extrusion.
- You can add points to the original curve to make the revolution surface smoother.
- With the curve selected, choose Modeling > Create Surface > Extrusion from Curve.
An extrusion surface appears in the viewports and the World Explorer.
- Select the extrusion and translate, scale, or rotate it as needed.
- To change its shape, modify its contour curve. See Modifying Curves .
- In the Parameter Editor, adjust the extrusion parameters.
Extrusion Parameters
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