You don’t need to be a full-time maker to find a 3D printer useful. In a smart home, it’s one of the best tools you can have ...

These switches control the speed, direction, and duration of the motors’ movement, letting the data strip encode motion vectors. Remarkably, the hotend on this printer is also 3D-printed.

Most 3D-printed guns don’t carry a serial number—in the US, these are known as “ghost guns.” Owning a ghost gun is legal in most US states, although a couple have introduced regulation.