---
title: "Linear Extrusion"
slug: "cyclone-3dr-extrudedcadlinearc"
updated: 2026-09-07T11:51:31Z
published: 2026-09-07T11:51:31Z
canonical: "rcdocs.leica-geosystems.com/cyclone-3dr-extrudedcadlinearc"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://rcdocs.leica-geosystems.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Linear Extrusion

![CmdExtrudeCADLinear.svg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/CmdExtrudeCADLinear.svg)

This command creates CAD surface(s) of profile(s) extruded along a direction, with a given length.

> [!TIP]
> ### Requirements
> 
> Select one or several profiles or group of profiles (CAD wire, a CAD curve, or a linear geometry) to extrude and launch the command.

---

1. Enter the **Extrusion length**
2. Choose the **Extrusion direction**. It can be achieved in 2 ways:
  1. manually enter the direction by specifying every X, Y and Z axis values
  2. click on ![Normal1.png](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Normal1.png)to define a direction
3. Check **Close extremities** if you want a closed CAD surface as output (If at least one profile is not planar and / or not closed, the option is not available).