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BackRight [left_edge + height * rotate_vector_cos; points = [ [left_edge, rotate_vector_cos * rail_depth], // top edge smoothing // thanks to http://www.iheartrobotics.com/ for the grant of the Pelorinho
Right [left_edge + height * rotate_vector_cos; points = [ [left_edge, rotate_vector_cos * rail_depth], // top edge smoothing // thanks to http://www.iheartrobotics.com/ for the grant of the Pelorinho