Research Paper Video illustrating the design and construction of a low-cost open-source mobile robot. The robot utilizes off-the-shelf (OTS) components, additive manufacturing technologies, aluminum profiles, and a consumer hoverboard with high-torque brushless direct current (BLDC) motors. It is fully compatible with the robot operating system (ROS), has a maximum payload of 90kg, and costs less than $1500. [Open Source] [Contact] Nwankwo, Linus; Fritze, Clemens; Bartsch, Konrad; Rueckert, Elmar. at Montanuniversitaet Leoben, Austria.