Signal Box Set

A Victorian railway signal box in four exports. The lever frame is the centrepiece: twelve colour-coded levers (red for signals, black for points, blue for facing-point locks, white for spares) with catch handles, brass number plates and a floor grating, each on its own published pivot so an engine can pull them. The block instruments carry six brass dials whose needles RADIATE from their centres rather than crossing them, plus a ticking clock. The desk brings an open ruled log book and an oil lamp whose chimney is a ring of glass staves — a union of solids can never be concave, so the chimney is a shell. The semaphore signal ships arm-horizontal, which is the real-world rest state for danger, with red and green spectacle plates and a pair of point blades on a stretcher bar. Built for the Signal Box mini-game in the Unity Lab. Two lessons baked in: a handle curve must continue from the BAR TOP, not from an arc about the lever pivot, or the crowns ship floating beside the frame; and the studio camera looks from +Y, so a cabinet authored facing -Y renders as the blank back of a box and reads as a build failure. Siblings ship as signalbox-instruments / -desk / -signal.glb.