Filengrene tutorial: tooth profile modification and crowning

Tutorial for Filengrene software, about tooth profile modification to take in account the tooth bending; and about crowning to center the teeth contact zone. https://moodle.insa-rouen.fr/course/view.php?id=700 This video is in French, but you can get from Youtube French subtitles and have them translated in your own language. The translation is not perfect, but sufficient to understand if you know the gears theory.