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Has anybody built a wooden trestle on an incline? I've got a 3% grade across the span for the bridge. I had two identical bents made when it dawned on me, the top of each bent needed to be at a different height. But this doesn't seem right. All bent tops should be in plane (level) and copies...

Hello, I've built the diamond scale turntable and am trying to decide how to power the rails. One rail is powered by the ring rail, which is fine. According to the diamond scale instructions, the other rail is powered by connecting a power wire to the rotor on the bridge arch (which rotates in a...