Parametric Stackable Gridfinity Tray - OpenSCAD

Parametric Stackable Storage Tray OpenSCAD tray with a built-in stacking foot. Set your Gridfinity footprint, partitions, and textures, then print as many as you need. Repository: https://github.com/ToledoEM/Build_your_tray How stacking works Each tray has a foot skirt : a solid tab below the tray body that drops into the inner cavity of the tray below. The floor slab underside of the upper tray rests on the top rim of the lower tray when seated. A 2° draft taper on the foot outer face and a self-centering chamfer on the bottom edge keep nesting snag-free. Footprint is set by gf_cells_x × gf_cells_y (each cell = 42mm). The Gridfinity base is optional, toggled per tray. When on, GF socket cavities are cut into the bottom face of the foot; when off, the foot is a plain solid tab. Features Stacking foot with Gridfinity option The foot fits inside the tray below with a gap controlled by stack_tolerance . Set gf_base = true and the foot bottom becomes a Gridfinity socket: the tray stacks on other trays and sits on any Gridfinity baseplate. Partitioning Set column widths with col_widths (Golden Ratio default: [1, 1.618, 1] ) and define row subdivisions per column independently via col_rows . Sine Wave Fins Set any column in col_fins to true to replace row dividers with corrugated wave fins. Useful for screws, bits, or small parts. Control amplitude, period, count, height, and z-offset. External Ribbing Optional vertical ribs on the outer walls. Adjustable width, depth, gap, and taper ratio. Key Parameters Gridfinity footprint Parameter Default Description gf_cells_x 3 Grid cells in X → width = cells × 42mm gf_cells_y 3 Grid cells in Y → length = cells × 42mm gf_base true Enable Gridfinity socket on foot bottom gf_magnets false Add magnet pockets (6.5mm OD, 2.4mm deep) gf_center_screw false Add center screw hole per cell Tray body Parameter Default Description wall_height 40 Outer wall height (mm) wall_thick 3.0 Outer wall thickness (mm) corner_r 8.0 Outer corner radius (mm) floor_thick 2.0 Floor slab thickness (mm) int_wall_height 30 Internal wall height above floor (mm) int_wall_thick 1.75 Internal wall thickness (mm) Stacking Parameter Default Description stack_depth 4 Foot seating depth (mm) stack_tolerance 0.30 Radial clearance per side (0.20 tight, 0.50 loose) foot_thick 2 Foot wall thickness (mm) Partitions Parameter Default Description col_count 3 Number of vertical columns col_widths [1, 1.618, 1] Relative column widths col_rows [2, 3, 1] Row subdivisions per column col_fins [false, false, true] Per-column fin fill flag Sine wave fins Parameter Default Description fins_enable true Master toggle for fin columns fin_orient "width" Wave direction: "width" or "length" fin_wave_amp 3.0 Wave amplitude (mm) fin_period 14 Wave period (mm) fin_count 4 Number of fin walls across column fin_height 0 Fin height (0 = use int_wall_height ) fin_z_offset 0 Height above floor where wave trough starts External ribs Parameter Default Description rib_enable false Toggle outer wall ribs rib_width 3.00 Rib footprint along perimeter (mm) rib_depth 1.50 Rib protrusion from wall face (mm) rib_gap 1.50 Gap between ribs (mm) rib_taper 1.00 Top/bottom width ratio All parameters accept continuous values. Edit values directly in tray_stack.scad ; no sliders.