CardBot is a crawler with a height of 18mm and weight of 20g. It can travel at a maximum speed of 24.4cm/s. Payload capacity of this robot is 200g, 10 times of self weight, which allows traveling with a large payload. An anisotropic leg was designed to go forward with a simple swing motion. Because the swing motion lies in-plane, hip joints are prevented from deformation due to the external payload. A slider crank structure was introduced to make the swing motion and implement a flat shaped robot. This robot was constructed using the smart composite microstructures(SCM) procedure. By having a high payload capacity, robots can be built that can load other modules and overcome highly complicated obstacles in the future.

Related papers and patents

Jong-Eun Lee, Gwang-Pil Jung, Kyu-Jin Cho, "Bio-inspired design of a double-sided crawling robot",Living Machines 2017, LNAI 10384, pp. 562–566, 2017. [PDF]

Jong-Eun Lee, Gwang-Pil Jung, Sang-Min Baek and Kyu-Jin Cho, An adaptive leg structure for a meso-scale crawler, 14th International Conference on Intelligent Unmanned Systems (ICIUS 2018), 2018

Related papers and patents


· E-mail : yhjelee at
· Research Topic : Bio-inspired robots

Ph.D. Candidate

Jong-Eun Lee