We see a lot of CNC Machines here on Hackaday ... and provides spindle speed information back to Mach3 so that it can time the step commands while cutting threads. The end result is a sweet ...

side to side and front to back are the X and Y axes. The router spins a cutting bit at up to 25,000 rpm. CNC stands for computer numerically controlled and those numbers, the zeros and ones ...

Originally (as the name implies) it was geared towards laser cutting, but the project has since evolved to support CNC routers ... an old wooden 3D printer kit back in the day, you can probably ...