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[quote]QUOTE: Originally posted by selector Very interesting! Should provide many hours of development and fun. Centred, low, are two parallel tracks running obliquely, with several switches between. What is the intent of the left-most switch that leads to a track that leads to another switch halfway along the cross-over? [/quote] This is an implementation of John Allen's "Timesaver". A switching puzzle. You'll find some more information here: http://www.wymann.info/ShuntingPuzzles/sw-timesaver.html I don't claim to fully understand this concept, but it sure sounds like something that might be fun to have. [:D]
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