[FreeRider] had built a CNC router before but it was big ... but also keeping the costs down and ease of build up. The machine frame is made from 3/4″ MDF and was cut on [FreeRider’s] first ...

This isn’t to say belts won’t work — you can create a fine CNC machine with bits of rubber. However, belts stretch, they wear out, and if you want more precision screws and racks are the way ...

CNC refers to the automated control of machining tools, such as lathes, mills, and routers, through a computer. It follows programmed instructions to cut, shape, or engrave materials like metal ...