Here’s a test of a vcarved sign in MDF. I painted it black, used oramask then cut. I need to slow the cut down on the larger fonts, as it pulled the mask up a bit and the fonts got a little wiggly. Worked like a charm on the smaller fonts though.
I painted white over the mask, let it dry, pulled it up and cleaned the little bits with an Xacto.
Definitely learned a few things on this.