Yes I suppose that was Algodoo like Marco remarks! ;) (the more fun i have never seen)

Ah sorry cross posts!

So maybe SolveSpace
http://solvespace.com/index.pl is more the resolution itself!

https://www.geogebra.org/?ggbLang=en is entierelly for any geometric resolve

else maybe http://neobarok.com/
for this one i don't success to make the "animation" of these gears - we can because functions are well inside but...
Video is too speed! If you success I will be happy to know the trick! :)


I have made this one but can't move an individual object without break the link!