I get that it’s an extrusion machine of some sort. I don’t understand how they extrude with the hollow center without splitting the outer circle. I’ve had so many people try to explain this and I’ve tried to find videos and my brain just can’t make it work. How do they design the machine that forces it into a ring like how does the center piece attach to outer shape of the mold without affecting negative space in between the two that the pasta comes out of? I hope I’m explaining why I’m confused correctly
In: Engineering
They **do** split the outer circle when the dough first goes into the machine. When it goes through the extruder die, the pressure is high enough where the dough gets forced back together.
[Here is a picture of the front and back of an extruder die](https://imgur.com/ijZzCvx). The dough goes in the six holes on the back and as it goes out the singular front hole, it gets forced back together.
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