Iso-Path, is an interesting game conceived of by a YouTuber that goes by Pocket83. He built his game using a tablesaw, but I decided to duplicated it with a CNC router as that's more my style. Video of this CNC build can be found here, or at the end of this writeup.
Step 1: Cut Out Board and Pieces
Cut out the board and pieces on a CNC router, laser cutter, or whatever tool is at your disposal per the provided DXF file. 1/4 inch plywood is used here.
Note that you may want to engrave the board's small hexagons with a smaller bit than you use to actually cut out the material.
The 6 side pieces will need to be taller than the small hexagons in order to keep the second layer in place (approx. 5/16" to 3/8" thickness)
Step 2: Deburr/Finish
Sand and file as necessary to get the pieces as you would like them to be.
Step 3: Test Fit - a Note on Notches
Test to make sure all your pieces fit together correctly.
Note that as seen in the third image I didn't properly undercut the side pieces, so things didn't fit well. Don't forget to cut into the sharp corners a bit as needed.
Step 4: Coat1 - Urethane
Apply some urethane to the board. Depending on how much sanding you want to do in the next step, this may not be necessary.
Step 5: Coat2 - Line Markings
Use a paint pen to fill in the lines that you've engraved with a CNC router. Sand and wipe down as needed to clean up lines.
Step 6: Coat3 - More Urethane
Apply another coat to seal in the paint.
Step 7: Stain and Urethane Pieces, Paint Sides
Stain and paint as desired.
Step 8: Glue
Glue side pieces on. The orange (or whatever color you selected) hexagon lines make a good guide as to where to place things, but it's still a good idea to check alignment by filling in the middle with small hexagons.
Clamp or weight and let dry.