This mechanism automatically uncouples carriages from a locomotive or other carriages, adding realism to a model railway layout. It’s hidden under a section of track and activated by a switch after the locomotive is driven into position. It’s actuated by a servo motor with simple control electronics and a relatively straightforward mechanical system that you can make. by Les Kerr
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This Turntable is an excellent addition to just about any model railway layout. It allows you to turn a locomotive engine around at the end of a track and automatically reverses power to the rails, so they aren’t shorted out. The electronics are easy to build, while the other parts can be made with moderate machining skills. by Les Kerr