A computer controlled 25 watt CO2 cutting laser. It uses a single PIC16C74 for the control panel as well as for the pulse width modulation of the beam ( this varies the apparent laser power thus changing the depth of cut). The laser tube was purchased from Synrad. It has an aluminum housing and is air cooled. It's powered by a 30 volt, 30 amp power supply (The laser tube has built in voltage step up circuitry).

The beam is focused onto the cutting surface by optics mounted on a X-Y table. The X-Y table is controlled by a PC.