So as one of the main reasons I bought the Emblaser was for cosplay projects I've been working on the best settings to use to get a nice clean cut.
This EVA foam is from Halfords in the U.K. and is around 12mm thick. It is sold in a pack of 10 mats.
From left to right as you can see the faster the laser moves the uglier the cut
My best results (using 4w unit powered to 100% current) were as follows:
I may consider 2 passes next time just to see if it cleans up the edge as there is a slight distortion when the laser begins its cut.