Useful Links

Design inspiration and information https://www.core77.com/ - Industrial and interaction design hub since 1995

https://www.youtube.com/@thang010146 - hHundreds of gears, cams, mechanisms, etc, animated and with step filesSimilarly,¶

http://507movements.com/ is a wWeb version of a publication of illustrations from 1868. 507-movements is a search term.