OMTech CO2 Laser Engraving machine 55"x35" 130W Engraver …
OMTech 130W CO2 Laser Engraver Cutter Marker Etcher Engraving Cutting Machine with 35"x55" Workbed (AF3555-130 ). MOTORIZED AUTOFOCUS WORKBED: The autofocus pen senses the correct focus distance from the laser head to the target material and signals the Z-axis motor to automatically raise or lower the workbed to the perfect focus height.