Comment: if you are really hardcore

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In reply to comment: As a CNC Machinist...` (see in situ)

if you are really hardcore

Get David Gingery's Build Your Own Metal Workshop series and build it all from scratch:

1) The Charcoal Foundry
2) The Metal Lathe
3) The Metal Shaper
4) The Milling Machine
5) The Drill Press
6) The Dividing Head
7) The Sheet Metal Brake

Also, printheads for printing metal are coming:

"All our words are but crumbs that fall down from the feast of the mind." - Khalil Gibran
"The Perfect Man has no self; the Holy Man has no merit; the Sage has no fame." - Chuang Tzu