I drove by Rich’s workshop on day 2 to get some videos and pictures of the control board. The control board now looked like my template, with everything rounded and perfect, and was all grey as you can see..

That would be the primer. I’m not sure I have ever fully understood why you need primer, but I know now. Primer has no color but a lot of adhesive talents, and paint has lots of color but a lot less adhesive ability (apparently its difficult to make a substance that is both). So you spray the primer on the wood and it sticks to it really well, then you spray the paint on the primer, which also sticks really well, and there you go.

For a professional result, you should sand the primer before painting (with superfine sandpaper). The fine scratches created during sanding provides more surface area for the primer and paint to adhere. Rich is sanding the corners by hand in the picture above and sanding the large flat area using a power sander below.

The actual color painting took 2 days, one for each side. In the picture below, Rich is putting another layer of paint on the board. What is interesting is that he is using a spray gun, even though we purchased several cans of spray paint. Rich actually extracted the enamel from the spray cans, and loaded it into his spray gun. I wish I had gotten a video of that process.

Once the board was dry, Rich delivered it to my home. I would have picked it up but it would not fit in my little car. I thought that this would be the last entry for control board construction, but it turns out that it is not, because I had to make a small modification to the board, which for me was a huge deal.