Add to ORKGThe bachelor's thesis describe the design and construction of chassis for autonomous mobile robot and its realization, in particular the design of frame with drives and steering. Proposed solution is partly based on the rules of Robotour competition, but the final design can serve as a platform for another applications. The design part describes the function of particular elements the construction nodes consist of. The selection and basic calculation of drives and details of implementation are also included. Functional platform for autonomous robot Bender II represent the final result of this work. Some problems which occurred during realization were fixed after testing. Construction proved its reliability even in poor conditions