In the first drawing, either servo could raise the mass, if the other was a pin joint, so they could both contribute to raising the mass.
I don't see how the arm of the bottom, the one linking the 'free joint' to 'servo1' is ever going to be in anything other than a horizontal position - given there is a free joint there. There is nothing to provide a reaction force.
I have mentioned this many times above, the mass is constrained to move only vertically; what do you think servo 1 (along with servo 2) would do if the mass is constrained at that position (as shown in the first diagram @ first post) ?
Makes one wonder how a guy who calls himself a mechatronics engineer got this far
I am sorry, I should have mentioned that this question is for open-minded people only.
Is this a piece of university homework that he's expecting us to do or a question from someone who either doesn't understand the basics of mechanics or has failed to phrase his question correctly
You must be a moron to think someone would join Arduino forum for his homework questions.
I did fail to explain
my design properly (and that is because it is only a part of the mechanism of my whole robot design), and I do admit it is my fault to over-estimate your intelligence assuming that you could figure out the possibilities and try to answer my question, as user: jcarrr