Cribbage board 29 shape drilling and routing template

I created this drilling jig to accurately drill holes, and rout out the outline in a hardwood board to make a 29 shape 121-hole cribbage gameboard. The drill holes are sized for a ¼" bit and are chamfered to more easily locate the drill bit. 

I printed the larger template with a 0.8mm nozzle, at 0.32mm layer height (draft quality) in 6 hours and 8 minutes, using an Ender 3 v 2. The smaller template took about an hour less, but I recommend the larger template since the holes in the tighter corers are better spaced.

Make sure you orient the STL model with the chamfered holes side up for better print quality.

I recommend using a center finding drill bit, which you can pick up from most hardware stores (e.g. RYOBI Self-Centering Hinge Cutter | The Home Depot Canada). Once you have drilled a couple of holes, you can use a pair of ¼" pegs or drill bits to keep the template fixed in position while you drill the next set of holes.

The jig allows you to create a full-sized standard board with the traditional layout, on a board @ 4½" x 15".  The ¼" holes are sized for standard sized cribbage pegs.