Mechanical device uses geometry

[telecom]

Can you make some kind of a hand sketch to illustrate?
I have a hard time opening your drawing.

[activ25]

I updated the drawing.

[activ25]

I simulated it with Algodoo and the sum of energy increases at start.

[activ25]

In fact, it doesn't work with the friction IF the circle doesn't rotate aruond itself. so I replace the circle by a pinion and the red wall by a rack. I control in position the rack and the pinion. I move the pinion in translation and I try to rotate it more than I can (the rack prevents to rotate more), like that there are forces on the rack from the pinion and from the rack to the pinion. I win d1*F and I lost d2*F.

[r2fpl]

I simulated it with Algodoo and the sum of energy increases at start.

Algodoo it's a buggy program! At the beginning of my adventure with FE, I made a few FE devices on it! Hahahahaha it all only worked on this program.
If you want to simulate, there are special programs for industry. This is CAD and then overlays.
Electronics simulation programs do FE too