Reading Microsiervos, I have seen that they were talking about a web application where we can generate templates for the construction of gears or cogwheels.
It allows us to print the templates so that we can carve our wheels in wood or plastic.
It is a very good way to build big cogwheelsIn this way we can create the profiles so that they mesh perfectly, correctly transmitting the force and according to our needs.
I add online simulator services to generate gears
And simulators of levers and pulleys
If you know more simulators do not hesitate to commit and we will make a good compilation. Without a doubt, they are very interesting resources for both teachers and students of technology.