The excimer and CO2 lasers are powerful industrial tools for the micro-machining of non-metals.
Masks of various shapes are often put in the beam and demagnified onto the component. The shape of the mask may be a rectangle or a round shape. Then X-Y tables can be used under CNC control to develop intricate shapes and contours. High speed CO2 lasers from lightmachinery can be used to cut and machine directly using a small focused spot.