Model Rail (UK) - - Workbench -

The three-way point is best con­sid­ered as two points that are in­ter­laced to­gether. Two point mo­tors are re­quired, but only two switches are needed. Us­ing the asym­met­ric ver­sion as an ex­am­ple, the heel-end mo­tor only needs to switch one frog and the other mo­tor switches two frogs. As there are four frog ends, four in­su­lated join­ers are re­quired. Again, it makes sense to con­nect one frog first and test as you go along.

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