tide shade 3d model

Create a 3D printable lamp shade called “Tide Shade”, inspired by layered ocean waves during high tide. The shade must look like several soft horizontal wave layers stacked above each other, with organic flowing edges, like sea water moving toward the shore. Dimensions: height 160 mm, maximum width 180 mm, maximum depth 170 mm. Construction: single-piece shade, hollow inside, bottom neck integrated into the shade as one solid part. Mounting: bottom integrated cylindrical neck with internal female thread. Internal thread diameter 68.35 mm, thread pitch 3 mm, thread height 12 mm. The thread must match a lamp base with external thread diameter 68 mm. Bottom opening must remain clear for E14 LED bulb installation. Wall thickness: 1.8–2.0 mm. Add a hidden top ventilation hole, diameter 20 mm. Style: eco minimalism, Scandinavian, soft translucent PLA, no sharp edges. Requirements: watertight manifold mesh, STL-ready, optimized for FDM 3D printing, no supports if possible.