CNC Aluminum Cribbage Board

Here's a CNC-machined crib board design that I made several years back. Finished length is 13.25", width is 4", height is 0.625".

I made mine out of a 14" x 4" x 0.75" chunk of 6061-T6 aluminum bar stock, machining was done top-down in a single setup.

List of machine tools you'll need:

- Suitable end mill to square off the ends and set the overall 13.25" length.
- Face mill / fly cutter to level and clean up the top surface.
- 3/8" (or smaller) flat nose end mill to cut around the raised track.
- 1/8" drill for the holes.
- 45 degree chamfer bit to finish the holes**
- 1/32" end mill for the track slots and skunk marker.
- 3/8" diameter ball end mill for the inverse fillet around edge of board***

** Optional but recommended. The STL file doesn't have the countersinking in it so you'll have to add it yourself using your CAM software. Use a 1/64", 45 degree chamfer on the hole edges.

*** Or do lots of passes with a flat end mill, bull nose end mill or whatever you'v