Definitely cut letter first but you will have to cut through the epoxy to get the shape don't know how the blade will deal with that depends how hard the epoxy is I suppose. Roly
Looks like I have to wait a while for it but hoping to do some cnc signs and add a picture to it to personalise it then the price goes up or could even do bedroom signs with pictures of the kids on them what do you use your k40 for?
I was going to add a laser to my CNC but decided on this one instead ordered today expect to see it in about four weeks from China. New NEJE 20W Laser Engraver it's portable which I like so have to test it when it comes. Roly