My native language is not English, so I don't know all the specific terms you may expect me to use. I apologize for that.
Anyway, I have a motor and three connecting rods (in French, bielles). So point C will have a circular trajectory and A, thanks to the sliding pivot (pivot glissant, I really hope I am using the right translations), should have a perfectly vertical trajectory.
My question is, how could I calculate the force F? I need this to emboss a piece of paper.
Thanks a lot for your attention!