They are unique, since this would be based on the person who would build and use them, their needs and budget. Woodworkers are seeing the benefit of building their own CNC router since this would cost them less than buying a new or a used one. If you are a hobbyist or catering to small orders, then getting a do-it-yourself CNC router would help you in your production and increase sales. Machining both ends Sometimes, a job requires you to machine both ends of a part held on a vise and you also need to try using one of the tools for the stop. Simply take of the tool s diameter and add 1/16 and incorporate this to the program. You can then bump the part against the tool, press the cycle start button, and the tool/stop moves out of the way. Wood workers and customers are looking for CNC machines that has greater speed, enhanced tool changing, more flexible, higher value and can combine several functions. In fact, customers are looking for CNC machines that are more complex, since they would be able to perform more functions. For example, CNC routers should be able to do both vertical and horizontal drilling and could cut. With new CNC machines coming into the picture, the output from these machines run the range of very simple to the very complex. They can create sophisticated shapes as dictated by the program. These CNC machines are operated by computer files created by CAD/CAM programs. A number of new CNC machines have built-in design programs. With no human intervention in the process (except in the pre-programming), the manufactured parts are made in exactly the same way each time. There might be tool changes, or placement of new raw material and such, but everything is done by the CNC machine. On average, these machines have stronger engines than the manual ones. Every axis uses linear drive system that drives their particular spindles. The motor links the mechanics and the electronics of the system. There are two types of motors in CNC wood router machines the stepper and the servo motors. Stepper motors are cheaper, performs well, and are reliable but they are not a closed loop system.