Computer Numerical Control for Wood-working Router Machine

Abstract

Since computer numerical control machines have become important tool in manufacturing process, this project aims to design a computer numerical control machine for wood-working that helps wood workers to have their products and to make wood-working easier. However, the target object within project must be treated in three dimensions. To make the design easier for assembly and maintenance a computer aided three-dimensional interactive application (CATIA) program is used. Here three independent stepper motors are used for these axes and the forth motor for drilling purposes. The spindle router is carried by depth-axis. Spindle router and depth-axis are carried on width-axis. Which is carried by length-axis. These axes move smoothly using sliding rods and slide bearing. A micro-controller is used to transfer the instructions from the computer to the motors drivers to control the direction as desired. These motors connected with screws which is used to drive these axes. The target designed using CATIA or ArtCam programs. These programs are used to design, draw or edit the desired work piece with the desired dimensions then get the sequential commands that describe axes movement to form the desired piece (G-Code) from these programs. Then transfer G-code to the microcontroller using Mach three which is connected to the computer and the motors drivers. Three dimensional products were produced using this machine with accuracy within 1 millimeter. Due to the machine size its can be used in the educational purposes to produce a simple three dimension products.