How can a machine extrude a round pasta shape with a hole in the middle (e.g penne), without the middle metal part blocking the hole falling away

Question

How can a round shape be made, when the middle part of the metal creating the hole needs to be attached to something, which would create a gap in the shape

In: 479

Answer 1

Simply support the thing in the center from behind the aperture through which the substance is forced.

Imagine a plate with a hole in it as your extrusion aperture. Behind it is a cavity that holds the substance being extruded, and a rod extends from the far wall into the extrusion hole.

Answer 2

Simply support the thing in the center from behind the aperture through which the substance is forced.

Imagine a plate with a hole in it as your extrusion aperture. Behind it is a cavity that holds the substance being extruded, and a rod extends from the far wall into the extrusion hole.