I made this at Techshop using the planer / joiner, table saw, chop saw, router, and laser cutter. Their website is techshop.ws, check them out!
Step 1: First steps with the board
It got a little rain on it, so I started off by drying it in the powder coating oven at 200F for 30 minutes.
I tried to match the dimensions of the 2 blue blocks shown.
For the first pass through the joiner, use the ruler to set the height. Try not to take off more than 1/8" per pass, especially the finishing passes that need to look good.
Make sure not to plane it down to the final thickness, just get it close, but leave yourself room to take more off later.