Thoughts on the
Rear Logic Display Box
There are some serious problems with the current design of the rear logic box..The main problem lies in where the rear logic display box sits on R2. If the rear logic display box was placed on the body, where the walls are straight up and down there would be no problem. As it is currently, the rear logic display box is made to fit a cylinder. The problem is that the rear logic display box sits on the dome.
Because the rear logic display box is curved, as it is tilted back as it has to be due to the dome shape, the lines of the box curve down. The illustraion above shows the rear logic display box in postion slightly exaggerated, so that it easy to see what is happening. Also the display panel ends up pointing up at a 12 degree angle.

To solve this the top of the rear logic display box must be further back than the front.

Here is a rough renderiing of what the rear logic display box should be shaped like. This shape would allow the display to remain perpendicular and yet have an even penetration if the frame through the opening.
Another problem with the plans is that the drawing if machined as shown ends up not looking like the plans. If the mill bit does a straight path along the opening when cutting the angle from opening to border, the border ends up being tapered.

The drawing above shows the angle being cut following the borders radius. Yes it leaves a flat spot in the back, but its less noticable then the border being tapered.