I’ve tried recently to engrave on 3mm thick plywood covered with gold sheets. The sheets are glued on the surface of the plywood. They seem to absorb the laser power, so I needed to increase the power to get the design engraved.
But increasing the power had side effect. The design is visible on the back side of the plywood. But I wasn’t expecting that.
Does anyone know any recipe to correctly engrave on the gold sheets without drilling the wood?
Thanks for your advice…