All of the parts and headers are soldered, but I still need optocouplers for those sockets, and wire sockets for those headers. I found solder it all, but I wood like to be able to disassemble it later.

I regret not being able to find long pin headers for the long mega 2560 dual socket on the end. It would have been nice to support mega 2560 shields, but the aren't many of those, so I guess it isn't so bad.

I have already thought I'd lots of ways these could be better. But I had to order 5 at a time, so the first 5 will be like this...