Perigee Foundry

An original portrait-first spatial-automation puzzle. Three mutually perpendicular brass orbit rails surround a miniature moonwork. Each carries a rotatable switch frame with two clasps and one or more moving craft stations. The clockwork courier advances one eighth-turn per beat, transfers between rings only where both frames open the same physical 3D intersection, and must visit three craft processes in the written order before reaching a fixed dock.

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