After cutting out some pieces and seeing how I would do final construction. this mock-up was at a point where I thought I would make the top out of acrylic glass, once again, it was deemed not a good idea in a educational environment to have such a easy to break material in a place where someone could potentially fall on top of it. The frame wood was then re-purposed for the side acrylic glass windows.
The final width of the launcher is 13"
A view of the inside of the launcher, the sides will be acrylic glass, that was spectators can see without taking a huge blast of compressed air in the face.
When I got home, I went right to work assembling the pieces I already had. The solenoid plate measures 13"W x 10"H. The 45 degree piece is a little more than 0.75" on the edge... which causes a problem which I will have to solve.
I will likely be taking a break from this here to re-focus on the electronics side of the unit provided my programmer is available, if anyone else is interested in writing a program for these Numato boards (RELAY16 and GPIO32). Then leave a comment or something and I'll get back to you.