Half Nuts for Lathes 29 December 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! The haft nuts get engaged with the leadscrew by the blue slot face cam. The mechanism is used for turning threads. « previous mechanism Robot Head of DoF (Up-Down and Turn) next mechanism » Barrel Cam Mechanism load comments Please enable JavaScript to view the comments.