Construct a simple and reliable helix

Making sure the first level of a helix is as stable, secure, and smooth as possible makes the remaining levels go together easier.

A house, a car, and a layout all have something in common: they turn out better when they’re built on a solid framework. This is especially true of a helix. A helix – a spiral ramp meant to lift a model train from one level of a layout to another – may not be prototypical, […]

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