An App Link, or formally an
App::Link, is a type of object that references or links to another object, in the same document, or in another document. It is especially designed to efficiently duplicate a single object multiple times, which helps with the creation of complex assemblies from smaller subassemblies, and from multiple reusable components like screws, nuts, and similar fasteners.
Simplified diagram of the relationships between the core objects in the program. The
App::Link object is a core component of the system, it does not depend on any workbench, but it can be used with most objects created in all workbenches.
- Select an object in the tree view or 3D view for which you wish to create a Link.
- Press the Std LinkMake button. The produced object has the same icon as the original object, but has an arrow overlay indicating it is a Link.
See the Std LinkMake page for the complete information, including its use in Scripting.
An App Link (
App::Link class) is derived from the basic App DocumentObject (
App::DocumentObject class), therefore it shares most of the latter's properties.
See the full list of properties in the Std LinkMake page.
- Standard menu: File, Edit, View, Tools, Macro, Windows, Help
- Structure: Std Part, Std Group, Std LinkMake, Std LinkActions (Std LinkMakeRelative, Std LinkReplace, Std LinkUnlink, Std LinkImport, Std LinkImportAll)
- File: New, Open, Close, Close all, Save, Save as, Save a copy, Save all, Revert, Import, Export, Merge project, Project information, Print, Print preview, Export PDF, Recent files, Exit
- Edit: Undo, Redo, Cut, Copy, Paste, Duplicate selection, Refresh, Box selection, Box element selection, Select all, Delete, Placement, Alignment, Toggle Edit mode, Preferences
- View: Create new view, Orthographic view, Perspective view, Fullscreen, Standard views (Fit all, Fit selection, Isometric, Dimetric, Trimetric, Front, Top, Right, Rear, Bottom, Left, Rotate left, Rotate right), Freeze display (Save views, Load views, Freeze view, Clear views), Draw style (As is, Flat lines, Shaded, Wireframe, Points, Hidden line, No shading), Bounding box, Stereo (red/cyan, quad buffer, interleaved rows, interleaved columns, Stereo off, Issue camera position), Zoom (Zoom In, Zoom Out, Box zoom), Document window (Docked, Undocked, Full screen), Toggle axis cross, Clipping plane, Texture mapping, Visibility (Toggle visibility, Show selection, Hide selection, Select visible objects, Toggle all objects, Show all objects, Hide all objects, Toggle selectability, Toggle measurement, Clear measurement), Toggle navigation/edit mode, Appearance, Random color, Workbench, Toolbars (File, Workbench, Macro, View, Structure, Navigation), Panels (Report view, Tree view, Property view, Selection view, Combo view, Python console, DAG view), Tree view actions (Sync view, Sync selection, Sync placement, Pre-selection, Record selection, Single document, Multi document, Collapse/expand, Initiate dragging, Go to selection), Status bar
- Tools: Edit parameters, Save picture, Scene inspector, Dependency graph, Project utility, Measure distance, Text document, View turntable, Units calculator, Customize, Addon manager
- Macro: Macro recording, Stop macro recording, Macros, Execute macro, Debug macro, Stop debugging, Step over, Step into, Toggle breakpoint
- Windows: Next, Previous, Tile, Cascade, Arrange icons, Windows
- Help: Help, FreeCAD Website, Users documentation, Python scripting documentation, Automatic Python modules documentation, FreeCAD forum, FreeCAD FAQ, About FreeCAD, What's This
- Getting started
- Installation: Download, Linux, Windows, MacOS, 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; Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Raytracing, Reverse Engineering, Sketcher, Spreadsheet, Start, Surface workbench, TechDraw, Test Framework, Web
- Unmaintained workbenches: Plot, Robot, Ship
- Deprecated workbenches: Complete, Drawing