[Mynasru] tipped us about a homemade CNC milling machine that his friend [trochilidesign ... 3 Nema 23 stepper motors and their drivers power the build, all of them bought on ebay.
including a milling machine. Granted that might be a slight exaggeration, but [Maximum DIY] was still able to use his budget-blowing lathe to make a decent milling machine mostly from scrap.