> The joysticks are connected to a pilot hydraulic circuit, which proportionally moves the cylinders in the main hydraulic circuit which ultimately moves the excavator joints I've actually spent a decent amount of time running an excavator, as my Dad owns a construction / road building company. It was a great summer job! An important note about the pilot hydraulics is that they _provide feedback to the operator_. I w…
One big advantage would be cameras mounted on the boom and rear view cameras, as many machines have obstructed views.