Of course he didn’t (YouTube). Instead, he wrote a simulator that lets him try out various custom linkages in real time. It’s a Windows-only application (sigh), but it’s free to use ...

The four bar linkage is a type of mechanical linkage that is used in many different devices. A few examples are: locking pliers, bicycles, oil well pumps, loaders, internal combustion engines ...

Most manufacturers offer two different linkage options: Z-bar and parallel-lift (or tool carrier). The choice of which one to use depends on how you plan to use the machine. “The specific job ...