URL: https://www.researchgate.net/publication/351455880/figure/fig4/AS:1024588104343553@1621292248258/Bending-kinematics-for-OA-showing-the-design-parameters-for-single-channel-actuation_Q320.jpg
URL2: https://www.researchgate.net/figure/Geometric-properties-of-the-three-channel-origami-design_tbl1_351455880