For relief engraving on wood, the following method is recommended (details are based on the use of the Speedy360, 80 watt laser): In order to create the desired depth of your relief, engrave your graphics in 3-4 passes with high performance and low speed (p 100%, v30%). Follow this with one or two rounds at low power and high speed. (p 60%, v100%), which will allow you to engrave away the smoke residue.
In order to achieve very deep engraving, first engrave the cutting contour, and then only perform the deep engraving in the second step.
Use a toothbrush to clean your laser-engraved relief, using water and soap or detergent. Scrub away the traces of powder by brushing generously over the relief. Do not use too much water and dry your workpiece very well, e.g. using compressed air. This will stop the piece of wood from losing its shape.