Hungarian manufacturer Rapid Prototyping transitioned its conventional foam milling process to 3D printing to produce faster, ...

Some rapid prototyping equipment is also referred to as additive manufacturing equipment or 3D printers. Computer numerical control (CNC) machining equipment can also be used for rapid prototyping, ...

Here’s a nice one that fits in that former category. Milling PCBs is quite a good solution for the rapid prototyping of electronics. Here’s a guide about that.