The legs of the DLR Crawler are based on the fingers of a robot hand developed by DLR (the DLR Hand II). The Crawler is used as a test bed for the development and evaluation of different gait and control strategies, and as a preliminary version of future exploration robots. Thanks to their modular design, their range of integrated sensors and the six degrees of freedom in their fingertips, the fingers of the DLR Hand II are particularly well-suited for this first prototype. The Crawler is automatically controlled in real-time using exploration and navigation algorithms which are based on stereo camera images. The data can also be used for 3D modelling of the Crawler's surroundings.