- Qt 6.8
- Robot Arm
- Qt 6.8.3 Reference Documentation

# Robot Arm

Demonstrates how to add a C++ backend to a 3D project from Qt Design Studio. This example demonstrates adding a C++ backend to a 3D project created in Qt Design Studio. The example itself consists of an interactive industrial robot arm in a Qt Quick 3D scene. The 2D UI to control the robot arm is implement using Qt Quick Controls.

For Qt Design Studio the Robot Arm Example comes with a simple QML based QML module in backend_moc/Backend/Backend_moc.qml, that serves as a backend for the project when using it with Qt Design Studio. The C++ application implements a compatible backend as a C++ based QML module. Both QML modules implement the same API, which ensures compatibility between the two modules.

The Qt Quick 3D scene for the Robot Arm is defined in content/RoboticArm.ui.qml. The 2D UI is implemented in content/MainScreen.ui.qml and is repsonsive and also supports a light and dark mode. The example uses the Material style from Qt Quick Controls and the dark and light theme to implement both modes.

#### Running the Example

To run the example from Qt Creator, open the Welcome mode and select the example from Examples. For more information, see Qt Creator: Tutorial: Build and run.

Note: The example makes use of the Qt Quick 3D module, which is a separate item in the Qt Online Installer. If the example fails to configure, please make sure that you have Qt Quick 3D package installed.

Example project @ code.qt.io