Since someone else posted the Gingery books on building a machine-shop from scratch, I thought I'd post this slightly different approach... build a machine that can do the work of a lathe, drill-press and milling machine from recycled parts, with the main piece being an old combustion engine block to leverage the precision milling of the cylinder bores.

See also this website: https://opensourcemachine.org/

Im curious, why did you decide to post the wikipedia page than the opensourcemachine link? I've noticed that wiki pages often dont do as well on HN as other websites