https://blog.rectorsquid.com/linkage-mechanism-designer-and-simulator/ https://blog.rectorsquid.com/linkage-mechanism-designer-and-... Maybe a linkage simulato

https://blog.rectorsquid.com/linkage-mechanism-designer-and-simulator/ https://blog.rectorsquid.com/linkage-mechanism-designer-and-... Maybe a linkage simulator like this one would be a good match?