Scale model working heavy equipment

I'm not sure who Franco Cucchi is, but he appears to be an Italian builder of model heavy equipment and tractors, possibly even a professional upon whose designs others base their model builds. Here are some of his builds in action, including a steam tractor, Caterpillar 60, and combine harvester.

https://www.youtube.com/watch?v=vx24S4EsD1k

https://www.youtube.com/watch?v=63GqeB_UpH8

https://www.youtube.com/watch?v=21RW438Iq0s

https://www.youtube.com/watch?v=nExPCQx3R_g

Now that Gent has some skills

these models are fantastic!

Those things are so cool!