There are three reflective mirrors inside the machine. The position of the first mirror is fixed, while the motor can move the second and third mirrors to direct the laser beam to any position on the work table. The second mirror moves forward and backward along the Y-axis, while the third mirror moves left and right along the X-axis.
The third reflection directs the laser beam to the surface of the engraving material. A glass focus lens inside the laser head focuses the beam from about 5mm diameter to about 0.3mm diameter (with a 1.5" lens add-on, it can be 0.2mm) to create a higher energy density that is sufficient to instantly burn through non-metallic materials such as wood and acrylic, metal materials after anodizing, or stainless steel after specific spry processing.