> ## Documentation Index > Fetch the complete documentation index at: https://docs.ntop.com/llms.txt > Use this file to discover all available pages before exploring further. # Section and Extrude Let's say we have a CAD object, and we want to section it and extrude it. This is a typical CAD operation, but can be a little outside the box when it comes to nTop. However, all we have to do is to use the **Remap Field** block and set the extrusion direction to 0. In this case, we set z to 0. We can visualize the resulting field by pressing 'F'. Now, if we perform a **Boolean Intersect** between this field and the implicit box of the bounding box of our original implicit part, we generate at an extrusion of a section cut of this part.

Next, let's say we want to extrude this at a particular location. Here, we can use the **Plane from Normal** block to define the origin and the normal vector of a plane where we want to section cut the part. From here, we extract the property '*Section Plane.frame.origin.z'* and use it in the **Remap Field**block as the input for z. Now, we can move the plane around and see how the section field location, and hence the extrusion location, changes.