Here is the method for constructing the rails.
The jigs are made from plastic card, the lower one is mine and the others were made by Tony B - much more precise than mine, but mine did the job, Tony allows for different spans and so on.
The top rail is 20 thou plastic rod.
The uprights are also 20 thou rod.
I tried solvent and superglue, not sure which I prefer?
One shot shows the superglue applicator - a cut off eye end of a needle in an old paint brush handle.
I place the superglue on some double sided tape and use it from there, it takes hours to go off.
The horizontal rails are made from stretched sprue, again I tried solvent and glue and think that solvent is best here.
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