Cutting and engraving results can be drastically improved by covering the unused portion of the rear exhaust vent, which will focus the extraction on the area being laser processed.
If a vacuum table is also being used, make sure to cover the vacant suction holes as well. This will allow for greater suction when working with thin workpieces (e.g. laminates), and ensure that the materials lie flat on the machines work table. Following this technique will ensure that the appropriate distance between the workpiece and lens is achieved consistently.
We suggest using masking tape and/or magnetic strips to properly cover the laser machines rear exhaust vents. For covering the table, use cardboard, paper or laminate boards to line the areas not being processed.