lamp sculpture 3d model

Repair the existing 3D model only. Do NOT redesign the overall lamp shape. Preserve the current lamp silhouette, proportions, spiral opening, upper curved form, base shape, thickness and overall sculptural geometry exactly as they are. ONLY modify and improve the recessed groove / inlay channel system. IMPORTANT: The current grooves are too narrow and inconsistent. Make all decorative recessed grooves significantly wider and more prominent. The grooves must look like BROAD RECESSED RIBBON CHANNELS, not thin engraved lines. Increase the groove width so that each recessed channel is visually about 35–45% of the width of the adjacent raised/non-grooved surface band. If real-world scale is approximately 300–400 mm tall, target groove widths around 8–15 mm and groove depth around 2–3 mm. Maintain a consistent groove width as much as possible while allowing only gentle natural changes caused by the curved sculpture. The groove depth must also remain consistent throughout the object.