CNC Drive Tools are the mechanical components that “drive” the CNC machine along its axis. The most common components associated with a drive system, are the motors, lead or ball screw, or rack and pinions. The whole idea of a drive system is to convert controlled rotary motion to controlled linear motion with the help of a CNC Controller. The idea of a CNC drive system is a fairly simple one. However, the actual mechanics evolved can be complicated. This is where many “DIY CNC’ers” get lost when trying to choose the correct drive system for their CNC Setup.