Introducing our low-cost mobile robot platform Arthur, which serves as a reference platform for research and education in mobile manipulation, allowing researchers, developers, and robotics students to write their own control and application software. This enables tasks such as machine operations or transporting components in the context of „Industry 4.0“. Arthur consists of a chassis with omnidirectional movement capability, onto which a robot arm like the igus ReBeL can be mounted (for information on pricing of the robot arm, visit RBTX).