Humans had to carry out all their machining processes by hand for centuries. Even precision tools had to be maneuvered very carefully, inch by inch, by people holding the devices personally. That all ...

There’s a certain class of parts that just can’t be made on a standard 3-axis mill, nor with a 3D printer or a lathe. These parts — weird screws, camshafts, strange gears, or simply a shaft with a ...