Instrument for Tracing a Symmetric Curve 10 March 2019, 19:30 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! Blue links have the same length. Move violet tracer along a given curve (a rhombus in this case), pink pen traces pink curve that is symmetric to the given curve about the centerline of the yellow runway. « previous mechanism Cone Irreversible Lock next mechanism » Spherical -Bar Linkage Mechanism load comments Please enable JavaScript to view the comments.