1. Laboratory of Intelligent Systems Institute of Mechanical Engineering School of Engineering École Polytechnique Fédérale de Lausanne Lausanne 1015 Switzerland
2. Shintake Research Group School of Informatics and Engineering The University of Electro‐Communications 1‐5‐1 Chofugaoka, Chofu Tokyo 182‐8585 Japan
3. Multi‐Scale Robotics Lab Tannenstrasse 3 ETH Zurich Zurich 8092 Switzerland