Train changes track gauge.
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Previously:
https://www.homemadetools.net/forum/...490#post173773
https://www.homemadetools.net/forum/...116#post168688
https://www.homemadetools.net/forum/...710#post108194
https://www.homemadetools.net/forum/...2811#post97204
https://www.homemadetools.net/forum/...789#post152289
https://www.homemadetools.net/forum/...303#post150335
https://www.homemadetools.net/forum/...050#post149352
https://www.homemadetools.net/forum/...808#post148306
https://www.homemadetools.net/forum/...777#post136901