openarm

OpenArm is an open-source, modular robotic arm platform designed to be affordable and adaptable for education, research, and hobbyist use. It provides a complete design and software stack to build, control, and integrate a multi-jointed manipulator with a configurable end effector.

The project emphasizes accessibility through open hardware files, bill of materials, and software that can run on common hardware such as single-board computers and microcontrollers. Hardware design emphasizes modular assembly with base, shoulder, elbow, and wrist joints and configurable end effectors. Joints are driven by common actuators such as hobby servos or stepper motors, with optional encoders; parts are typically 3D-printed or laser-cut.

Software and interoperability: OpenArm includes firmware for motor control and high-level interfaces for commanding positions and trajectories. It often integrates with ROS, supports URDF models, and offers simulation readiness in Gazebo. Cross-platform host software may be provided for Linux and Windows, along with documentation on calibration and safety.

Licensing and community: as an open-source project, OpenArm releases design files and software under open hardware licenses, encouraging community contributions, forks, and educational use. The ecosystem is sustained by online repositories, forums, and tutorials, with ongoing development by volunteers and collaborating institutions.

Applications and impact: OpenArm serves as a low-cost platform for classroom demonstrations, research prototyping, and hobbyist experimentation, enabling exploration of kinematics, manipulation, and human-robot interaction.