Internal Geneva Mechanism 28 February 2018, 21:00 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! The ratio of dwell period to motion period is 1/3. Angle of each rotation of the driven shaft is 90 degrees. « previous mechanism Keeping Direction Unchanged During Rotation next mechanism » Snap Motion load comments Please enable JavaScript to view the comments.