Ceiling Window 17 November 2020, 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! The mechanism ensures: - At beginning of open process the right panel turns faster than the left one. - At beginning of close process the left panel turns faster than the right one. « previous mechanism Cam-Driven Scissors next mechanism » Four-Bar Linkage load comments Please enable JavaScript to view the comments.