# Modelling

How to build a model by hand in the Womp editor, and where to read about each part.

**Use this when:** you build or edit a model by hand in the 3D Stage, or need to know which modelling page answers a question.

**Don't use this for:** AI generation or node graphs. Read Spark (Womp AI) and Flow (Nodes).

In Womp you model with simple shapes. You add shapes inside an area, and set how they combine: they can blend (`Goop`), cut each other (`Form`), or reflect (`Mirror`). Womp saves your project automatically. There is no save button.

## How a model is built

1. Add a shape with `O` (`Open objects menu`).
2. Move, rotate and scale it with the handles on the canvas, or type values in the inspector.
3. Add more shapes to the same area. Put shapes in a union to treat them as one object.
4. Set `Goop` to blend them, or set `Form` to `Negative` to cut.
5. Check the order of objects in the scene list. An object changes only the objects above it in the same area or union.

## Pages in this section

- [Navigation and layout](https://womp.com/docs/make/navigation.md): move the camera, switch views, and use the scene list and the inspector.
- [How Womp builds a model](https://womp.com/docs/make/how-womp-builds.md): solids combined in order, `Goop` as a blend, and why Areas decide what can blend.
- [Shapes and Goop](https://womp.com/docs/make/shapes-and-goop.md): the shapes you can add, the handles, and how `Goop` blends shapes.
- [Scene list](https://womp.com/docs/make/scene-list.md): areas and unions, the order rule, and the `Health` and `Imports` tabs.
- [Form and Mirror](https://womp.com/docs/make/form-and-mirror.md): `Positive`, `Negative`, `Stain`, `Intersect`, `Mirror`, `Flip`, `Align` and `Lattice`.
- [Keyboard shortcuts](https://womp.com/docs/make/shortcuts.md): every shortcut from the editor's shortcut list, plus undo and redo.

## Related

- [Spark (Womp AI)](https://womp.com/docs/make/spark.md) builds and edits scenes for you.
- [Flow (Nodes)](https://womp.com/docs/make/flow.md) is the node editor.
- [Design rules](https://womp.com/docs/print/design-rules.md) list the limits for a model you want to print.
- [Credits and plans](https://womp.com/docs/plans.md) explains what Pro adds.

## Use instead

- **Wrong move:** modelling a part for print without checking the print limits. **Why:** thin walls and tight gaps can fail. **Right move:** check [Design rules](https://womp.com/docs/print/design-rules.md) while you model.
- **Wrong move:** putting a `Negative` object above the shape it should cut. **Why:** an object changes only the objects above it in the same area or union. **Right move:** move the `Negative` object below the shapes it cuts. See [Scene list](https://womp.com/docs/make/scene-list.md).

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Last checked: 2026-11-10. Womp version: Womp web app, November 2026.