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How does that work in a car factory or slaughter house?
Individual shops are too inefficient to mass produce consumer economy levels of goods.

Part of the problem is that individual shops haven't developed efficiency as much, because they haven't been used as much. We are accustomed to seeing the 'production facility' model so much that we no longer see the other.

3d printers are going to decentralize production.
Instead of getting factory parts we get factory data and print our own.

We are moving towards open source everything.

"We are moving towards open source everything."

More freedom for development. More capitalism through incentivized collaboration. More innovation through capitalism.

Lol, more enslavement to those that control the money supply.

Do you really think the guy who designs stuff is going to want to go to a factory to 3d model?

You really are stuck in a 1940s soviet manufacturing plant mentality.

Who said factory in relation to 3d printing?
Though i would assume most of it wont happen in the kitchen.

How do you propose manufacturing heavy equipment outside a factory?

What the hell do you need heavy equipment for?

You really haven't been paying attention.

(Above i said 3d modeling, that's where the 'factory data' comes from, that can be done on a couch or in a kitchen, where ever a laptop fits)