medieval crown tower 3d model

Highly detailed shape-shifting helical sculpture for support-free FDM printing. Closed state: realistic medieval watchtower with carved stone blocks, arrow slits, decorative masonry bands, and battlements. Twisting helical segments smoothly transform the tower into an ornate royal crown. Open state: tall crown points, engraved arches, layered rings, and faceted jewel-like details formed directly from the tower geometry. Perfect cylindrical volume, no floating parts, no fragile features, minimum 3 mm wall thickness, continuous connected surfaces, clean manifold geometry, smooth mechanical transformation, strong structural integrity, premium MakerWorld-quality design, dramatic silhouette change, highly detailed, realistic, and fully manufacturable.