D1 20W 3mm Acrylic - Speed 450 - Pwr 100% - 3 Passes 3mm Ply - Sp 500 - Air on - Pwr 100% - 2 Passes (Makes it cleaner doing more passes/faster speed Engraving is Spd 2800 - Pwr 20% I spray varnish the wood beforehand so it's easier to clean if necessary then glue them together Happy Lasering!!!!!