A student robotics club at Stanford University released its robodog project, named Stanford Doggo, as an open source project.
The goal of the project was to build a robot “from scratch”, and the source code and documentation looks sufficient to do so.
The robodog robot can walk and trot, hop and jump, dance, and do a backflip. Also, it is a medium size robot.
The repository includes detailed instructions, parts lists, and code available on GitHub.