There are also CNC router kits and plans. However, some builders feel that following the directions, exactly as they are, fails to meet their needs. Since they have to follow the plan, considerations in designs and sizes (or whatever the builder needs or wants) may not be accommodated by the plan. This would leave builders operating with CNC routers that they do not want or need. Aside from that fact that you will not be maximizing the potential of the machine, it would cost you more than you need to spend. Check the machine background. Background check would include previous maintenance and machine problems and its service records. This would give you an idea, if the machine would still be able to meet your expectations when it comes to woodwork. The CNC machine (computer numerical control) uses computer software and CNC controller electronics to drive the mechanical system. Like the good old traditional router, the new CNC router also moves in 3 directions (usually called X, Y, and Z directions.) The longest is the X axis which runs from front to back. These files are also created by CAD/CAM programs. The old traditional routers are usually supervised by humans while CNC routers are totally automated. CNC Mills These are the CNC machines that are used to shape metals and other types of materials. They could be vertical or horizontal types. (This simply applies to the direction in which the cutting tool is oriented. The following are a few random tips, information bits, techniques and other aspects in CNC woodworking (routing, machining, drilling, and others) that had only been uncovered recently. Inputting Some CNC woodworking programs have to be manually inputted into the machine control. Writing small sub-programs (others call them templates) will save you some sizeable time (and keystroke efforts), most especially on codes that are repeated over and over. There are different kinds of CNC woodworking machinery based on the scope of the manufacturing process it could cover, its size and its function. Generally speaking, computerized systems would cost about thousands of dollars, especially those who are intended for large industrial operations. There are small scale CNC machines, do-it-yourself kits and portable machine which are available for much lower price.