> For the complete documentation index, see [llms.txt](https://docs.enercalc.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enercalc.com/e3d-training-manual/building-the-model/general-modeling-theory/editing-model-geometry/revolve.md).

# Revolve

How to revolve selected members into shells or shells into bricks to generate new geometry.

**Modify > Revolve** acts on selected entities and allows them to be used to create new geometry. It can be thought of as the rotational analogy to the Extrude commands.

{% hint style="info" %}
Note: The initial members or shells should lie in the XY plane with Z=0.
{% endhint %}

**Revolve Members to Shells** acts on selected members. It collects a number of segments, a start angle and an end angle. When executed, it produces one or more new shells by revolving the selected member(s) about the Y axis. This command automatically merges nodes if any duplicates are generated. It offers the option to delete the selected members after revolution. This is useful if the member was only used as a construction tool to generate the shell and is not really needed in the model once the shells are generated.

![](https://3750289988-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlRZtG5Ynp58kYzLHYbR7%2Fuploads%2Fgit-blob-c9fdbd00188295dce1f1a1f5d97e021bcc49db9c%2FRevolve%20members%20to%20shells%20start.jpg?alt=media)

leads to

![](https://3750289988-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlRZtG5Ynp58kYzLHYbR7%2Fuploads%2Fgit-blob-a64aa8330d6771d753c09bf2bd4e5e79078513de%2FRevolve%20members%20to%20shells%20end.jpg?alt=media)

**Revolve Shells to Bricks** acts on selected shells. It collects a number of segments, a start angle and an end angle. When executed, it produces one or more new bricks by revolving the selected shell(s) about the Y axis. This command automatically merges nodes if any duplicates are generated. It offers the option to delete the selected shells after revolution. This is useful if the shell was only used as a construction tool to generate the bricks and is not really needed in the model once the bricks are generated.

![](https://3750289988-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlRZtG5Ynp58kYzLHYbR7%2Fuploads%2Fgit-blob-3ba090a3fcf9ab97d4e496abaa3b279836e422b1%2FRevolve%20shells%20to%20bricks%20start.jpg?alt=media)

leads to

![](https://3750289988-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlRZtG5Ynp58kYzLHYbR7%2Fuploads%2Fgit-blob-9c82b538ac5c1af4a532099f0a50793c92fb2ac6%2FRevolve%20shells%20to%20bricks%20end.jpg?alt=media)


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.enercalc.com/e3d-training-manual/building-the-model/general-modeling-theory/editing-model-geometry/revolve.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.