Ok, it’s been etching for six hours and got approx. 0.3mm depth (sheet is 0.7mm thick).
Out from the etch tank, dried then soaked in petrol to remove the rest of the paint then washed. Wife will cut these out, clean the etch up, will become the same colour but a very textured matte surface compared to the design which will be flat and shiny and then will be turned into necklaces.
So overall, I’m very happy with the accuracy of the X-Carve driving the laser for detail work. Next thing to try is etching a PCB using this method but chemical etch instead of electro etching.
Cheers
Ian