Can’t remember where I found the link to some Carbide 3d files for making cribbage boards, but use some caution. After messing around with California topographic cut file I found there weren’t enough holes for a proper game, ie 120 plus the single winner hole! Went back and counted some of the other files and first one I found was incorrect as well. No harm no fowl, I learned a lot from the 3d file. I’m knocking out a board from scratch tonight and making sure there’s 120 +1 holes.
cheers