Abstract: A system for controlling the liquid pressure for a liquid cutting dispenser includes an intensifier for producing a predetermined constant pressurized liquid through a conduit to the cutting dispenser. A plurality of reducing dispensers are connected to the conduit and selectively controlled to reduce the pressure from the predetermined pressure of liquid. By actuating different combinations of reducing dispensers having different jewel sizes, variable pressures are obtained. The selection and duration of the reducing dispensers are programmed into memory along with a path a robot is to follow to allow automated cutting with variable pressures.