Learn how to create an affordable, open-source 3D space mouse using Arduino and 3D printing in this 17-minute video tutorial. Explore the concept of space mice, examine available DIY options, and follow a step-by-step guide to build your own device. Discover the required hardware, printed parts, and assembly process, including core construction and wiring. Master the preparation of a custom Arduino board to emulate a SpaceMouse, upload and debug the Arduino sketch, and complete the final assembly. Evaluate the usage and performance of your homemade 3D space mouse, which can be constructed for approximately $20 in parts.