[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 ...

[Marius Hornberger] has been busy hacking his “Hammer” CNC router ... to the build was a tool depth sensor (AKA: a switch) mounted off to one side, which allows the machine to find the bottom ...