Question
how do i design a single screw food extruder
Answer
One simle design would have a screw fitting snugly inside a cylinder. The food would enter a hole in the side of the cylinder and would be pushed forward toward the front end. A nozzle fitted to the front of the cylinder would extrude the food into the desired shape. The back of the screw would be fitted to a shaft that exits the rear of the cylinder. The shaft could be turned by a crank or by a motor. Plastic, aluminum, or stainless steel could be used for the screw and the cylinder.
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