Step 7: Finished Product and Observations
Most Lego pieces are based on even numbers (at least the ones I wanted). The fact the outline was 9x13 in Lego profile made it hard to get a strong base which is why there are so many Plate levels.
You may find your RaspPi board fits tighter or more loose than mine. I put a flat 2x2 clear Plate* (see below) up on edge in the corner were the clear pieces are, squished between the wall and the board to stop the board moving when I put the SD card in or removed it. That is also the reason I used the Megaphone, to separate the USB ports and Ethernet port and hold the board in place. I had also had small 1x1 Plate pieces underneath to hold Board off the base but discovered they were not needed.
*1 – 1x2 Flat Plate #3069 Clear
or 2x2 Flat Plate #3068 Clear
Update: I have changed the LDD files to another site as Minus is not cooperating.
Lego Digital Design .lxf file of the project and 4 other Cases I was working on. Stored on uploaded.net.
Really put a lot of time in this and am really looking forward to using my Raspberry Pi. Hope this is useful.
Thanks to Acacia and Sprocket for their help.