pcb fabrication and antenna design pcb fabrication and antenna design , equipments for ece department , detailed specifications : ? capability of drilling, milling and routing on bare pc boards. ? provision for usb plug-and –play connection / rs232 ? ability to do step milling and incremental milling ? facility of tool depth adjustment ? the minimum track width that is capable of routing is 4 mils. ? maximum drilling cycle ( cycles / min. ) = 50 ? maximum thickness of processed material ( mm ) = 10 ( 0.4 ) ? the minimum isolation between 2 tracks is 4 mils ? the minimum drill hole diameter [ mm ] = 0.2 - 3.175 ( 8 - 125 mil ) ? the working x-y area is 229 x 320 x 57 ( 9.0 x 12.6 x 2.24 ) ? the power consumption is 100 - 240 v, 50-60 hz, 150va ? the resolution of the machine [ um ] = 0.625 ( 0.0246 mil ) ? the milling machine motor speed 5000-41, 000 rpm ? travelling speed is 55mm / sec. ? the machine can be controlled precisely for all kinds of operation ? the machine is supplied with the necessary software. software works with the ordinary gerber formats ? supports substrates like teflon, rt / duroid, arlon, fr4