CoppeliaSim forums

Hello
I created a model of the four bar mechanism using three rods.
https://drive.google.com/file/d/0B7cz41 ... sp=sharing

The mechanism should always move as a parallelogram. Link 1 and link 3 should be always parallel. Link 2 should be always horizontal.
https://drive.google.com/file/d/0B7cz41 ... sp=sharing

however for unclear reasons the motion does not obey the theoretical expectation.
https://drive.google.com/file/d/0B7cz41 ... sp=sharing

I will be grateful for any clarification for the reason.

Regards
Tamer HMA Kasem (Ph.D.)
Cairo University
Faculty of Engineering

Hello Tamer,

please have a look at this four bar linkage example.

Cheers