A study of data acquisition based computer numerical controlled (CNC) prototype 3-
axis milling machine is presented. The mechanical construction, electrical drive circuits
and the PC-based control system have been experimentally implemented in the Arab
Academy for Science and Technology (AAST) control laboratory. A computer aided
design (CAD) program has been developed using C-language to Off-Line draw the
required milling shape and then On-Line control machine axis motions to get this shape
on the work piece. The overall experimental setup construction and main parts are
presented. Experimental results of the proposed system are demonstrated.