The Muscles

Lara is actuated by a shape memory metal (SMA) called NiTinol. Prestrainend SMAs change their lengths up to 8% when heated above their transformation temperature. The heating of the muscles is realised by an electric current. Lara´s movements are generated by groups of NiTinol-muscles. Every muscles contains serial-parallel connected NiTinol wires, with a free scalling possibility of pull-force and length.