Is not functional, there is no dynamic between the parts, there is no concern with counter weights, the design is very rough. You nailed all parts, including the counter weights ... Where's the logic in that? You just made a drawing in crane format, not bothered to put the actual weight of the components. You can do better!
And please stop commenting to see your "crane". That's pretty childish.
I found some errors in the shovel. The green lines are in collision with water. And it has other green lines under it. And that larger piece of steel at the bottom of the shovel, has another piece over it copied. And the "hydraulic" cylinder was short, limiting the movement of the shovel when it goes down.
