Getting some serious work out of your hobby 3D printer.
It has been said that once you have a lathe you can make just about any other tool. This open-source printable mini lathe could be the perfect place to get started. With the quality of hobby printers increasing so rapidly, it is great to see complex mechanical models like this making their way out into the ecosystem.
(We’ve seen a printed mini-lathe before, but that project seems to be obsolete now.)