Here's the video I took of their laser. It was making sample cuttings - basically a collection of 25mm squares of various materials, ply, balsa, card, etc etc, with the power & pulse rate used and an example of the cut you get by 'machining' a 20 x 10mm rectangle. Depending on the power/pulse rate this can be a mere scorching of the surface to a complete blast through and all depths in between.