It started out as a Pepakura model that I designed for the project. I modelled the faceplate and dome in 3D, then unfolded it using Pepakura.
Though the card build wasn't bad, the lid has gone through many changes along the way to get it more accurate. Both the dome and faceplate have been modified along the way.
The last few days have been spent getting a rough pattern for the cowl. I think I've nailed it but I need to make a few more mods to the faceplate before I know for sure.