The basic principles of the J-Trak system are remakably simple.
The aim is obviously to create a system of modular tables which is flexible enough to be rearranged, and reconnected to make different Scalextric layouts using the same basic tables, without having to change the actual track pieces at all. This modular approach also allows a track to be transported, stacked, stored and set up again quite easily.
There are only two essential requirements of a J-Trak, and these are the really basic things which we need to define and standardise - namely the track connections, and the table heights. Without these, the modules will be incompatible, and the system simply won't work.
But beyond that, there are very few constraints. You can choose any table size you wish, you could even have differently sized tables, and you can have as many or as few as you like. You can also have a free hand in the track layout of each module. So long as the tables are the right height, and the track leaves each module in the right way, then everything else is down to your choice.
But there are a number of considerations which, although not essential, might well make the all important difference between a functional, reliable system, and one which is a constant source of frustration.
So we'll provide as much practical advice and information as possible, regarding module design, table connections, power taps, and general construction.