Hi, I dont know if this is helpfull to anyone , but I hope so.
After experimentation with various materials (Wood, solid, veneer etc) I finally set out a test cut on a composite of wood veneer and Straw board backing. I wanted to achieve some depth to the finished articles and finall arrived at the composite material. (Veneer is expensive to laminate into a reasonably thick piece and a single layer is too fragile to work with in delicate details.
I bond the veneer to the strawboard with PVA glue.
Set up a toolpath that consists of 7 rectangles. Each rectangle is cut wit the 4 watt laser @ 8mm/sec @ 100 % power.
You can see that 6 passes will cut through but only just. & passes is selected. * @ 9 passes tends to promote some burning…
I will run a test piece like this for each veneer used.
This give a good indication of the settings I need to get clean cuts.
Hope this helps