Parametric 2-Tier Stepped Spice Rack Organizer

Design a modern 2-tier stepped spice rack organizer for a kitchen cabinet, parametric CAD model, designed to be universally compatible with most standard spice jar sizes (diameter range 30-50mm). Base width 140mm, base depth 90mm, material thickness 5mm. Two tiers rising toward the back like stairs: front tier height 22mm and depth 45mm, back tier height 45mm total and depth 45mm (step rise of 22mm between tiers). Each tier has a 10mm-high front lip angled slightly backward (5-degree inward tilt) to prevent spice jars of varying sizes from tipping or sliding forward. Instead of fixed-diameter pockets, add shallow oval/elongated recessed grooves (indentations) on the top surface of each tier, 50mm long x 40mm wide, 2.5mm deep, evenly spaced with 8mm gaps between them, to loosely guide and stabilize jars of different diameters (30-50mm range) without restricting jars that don't perfectly match one size. Add side support walls, 5mm thick, with a smooth curved (not sharp-angled) profile connecting the tiers, giving an organic staircase silhouette rather than a blocky one. Apply 3mm fillets on all outer edges and corners for a soft, rounded, modern look. Add a subtle 1.5mm chamfer along the top front lip edge for a refined finish. Overall style: minimalist, smooth, rounded-modern aesthetic, no sharp corners, suitable for mass production via wood CNC machining or plastic injection molding, food-safe surface finish.

Parameters

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