CAM experimental
Description
The CAM Workbench contains a set of hidden commands. They are hidden by default because they are experimental. A command can be considered experimental for any of the following reasons:
- It is incomplete.
- It is bug-ridden.
- It is unstable.
- It does not produce correct, stable, safe, paths.
- It is not a standard, regularly used command in the traditional CAM workflow.
- It is mature but has not yet been moved to the standard tool list.
- ... other reasons.
Enable experimental commands
To access the hidden experimental commands of the CAM Workbench, the user must enable them in the Parameter Editor.
- Open the Parameter Editor via Tools → Edit Parameters...
- Once in the editor the path is BaseApp → Preferences → Mod → CAM
- To enable the CAM Area and CAM Area Workplane commands:
- Right-click in the parameter list area and select New → New Boolean item from the context menu.
- Name the new parameter:
EnableAdvancedOCLFeatures
(case-sensitive). - Set it to:
True
.
- To enable the other experimental commands:
- Again select New → New Boolean item from the context menu.
- Name the new parameter:
EnableExperimentalFeatures
(case-sensitive). - Set it to:
True
.
- Save the settings.
- Restart FreeCAD.
Additional Information
Read more about the specific experimental commands on the wiki pages that link to this one.

- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub
- Project Commands: Job, Post Process, Check the CAM job for common errors, Export Template
- Tool Commands: Inspect CAM Commands, CAM Simulator, Finish Selecting Loop, Toggle the Active State of the Operation, ToolBit Library editor, ToolBit Dock
- Basic Operations: Profile, Pocket Shape, Drilling, Face, Helix, Adaptive, Slot, Engrave, Deburr, Vcarve
- 3D Operations: 3D Pocket, 3D Surface, Waterline
- CAM Modification: Copy the operation in the job, Array, Simple Copy
- Specialty Operations: Thread Milling
- Miscellaneous: Area, Area workplane
- ToolBit architecture: Tools, ToolShape, ToolBit, ToolBit Library, ToolController
- Additional: Preferences, Scripting