A 3D printer is a good "force multiplier" for a small workshop, but not that useful by itself. For example, I use it to print custom gaskets for the circuits t

A 3D printer is a good "force multiplier" for a small workshop, but not that useful by itself. For example, I use it to print custom gaskets for the circuits that I make and sell -- this results in less installation errors, which is worth it just for the replacement units.