QH 1390 100W Single Head CO2 Laser Engraving Machine for Acrylic and Wood Description The QH 1390 is a fixed-configuration 100W single head CO2 laser engraving and cutting machine with a 1300×900mm working area, set up for acrylic and wood production. The 100W tube cuts 10-15mm acrylic cleanly and handles wood, MDF and plywood at production speeds, while the 10.6µm wavelength is absorbed efficiently by these non-metallic materials so edges come out smooth and engraving stays