Hello people!
I'm getting closer to buying some SS and having it cut. This is the design for the plates I thought of:
(http://geekigt.se/plates.png)
Fig1: Each plate will have 5 holes drilled in it for screwing them together, and one additional hole (upper left corner) for connecting positive or negative plates to eachother.
Fig2: I see now there's a hole missing on the lower plate but just imagine it is there

Fig2 just illustrates how the holes would be drilled and that the cut is with an angle.
Fig3: Isn't that some sweet 3D in Paint, huh? This is an attempt to show how the exact same cut in every plate could produce easy-to-work-with variations. Orange might be negative, green positive and blue neutral, then this figure would show a -nn+nn-nn+nn- configuration.
The question is, how large or small should plates for "normal" electrolysis be? I'm thinking of going for very little spacing between them and about 3x3 decimeter plate size and to work with ~13-14 volts and ~13 amps. Could/Should I use larger plates? or smaller?
I would also appreciate some feedback on if you see something that is flawed in this design, if you can think of an improvement or anything you can think of really.