Pedal Fighter Arduino mounting

I mounted the Arduino Uno board to the underside of the Pedal Fighter today. I added the drill layout to my panel drawing in Qcad.

I added crosshairs so that I could find the centers when I printed out the template. This seems a little bit hackish, if anyone knows a better way to get the centers to show up when you print the drawing out, please let me know.

Here is the mounted board. I used 4-40 threaded standoffs and screws. The standoffs were 7/16″ and the screws were 3/8″ and 1/4″ for the top and bottom respectively. I wish I had found some shorter standoffs, but I was spending too much time at the surplus store.