Altering Speed With Reuleaux Polygon 18 November 2016, 16:00 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! It is a case of Reuleaux polygon variation. Transformation ratio is 2 Velocity of the output shaft is very inconstant. « previous mechanism Spatial Geneva Mechanism next mechanism » Lathe Tailstock load comments Please enable JavaScript to view the comments.