With a lathe, we are told, all other machine tools can be built, including a milling machine. Granted that might be a slight exaggeration, but [Maximum DIY] was still able to use his budget ...

you probably have run across [UsagiElectric] aka [David]’s various PCBs that he makes on his own Bridgeport EZ-Track 3-axis milling machine — massively oversized for the job, as he puts it.