Build Your Tray

Parametric storage trays in OpenSCAD. Three scripts, each for a different use case. Edit values at the top of the file, no sliders.

Scripts

tray.scad — free-size tray

Set any width and length in mm. No Gridfinity dependency.

• Outer dimensions via tray_width / tray_length
• Gridfinity sizes as commented presets (42mm–252mm)
• Ribbed external wall texture (always rendered; adjust with rib_* params)
• Diagonal hatch texture on the outside bottom face (toggle with hatch_enable)
• Internal columns and rows with golden-ratio width support
• Per-column sinusoidal fin surface

tray_gridfinity.scad — Gridfinity base, always on

Snaps onto any standard Gridfinity baseplate. The GF socket cannot be disabled.

• Size from gf_cells_x × gf_cells_y (each cell = 42mm), no free width/length
• Magnet pockets at every cell corner, on by default (6.5mm × 2.4mm)
• Optional center screw hole per cell
• Same partition, rib, and fin options as tray.scad
• Hatch cut into the interior floor face (bottom is the GF socket profile)

tray_stack.scad — stackable tray with optional Gridfinity base

Upper trays stack into lower ones via a foot skirt that drops into the receiving tray's cavity. Size in Gridfinity grid cells; GF socket optional.

• gf_base = true/false adds the GF socket to the foot bottom face
• When GF is off, stack_depth sets foot height
• stack_tolerance is the radial gap per side between foot and lower tray (0.20 tight, 0.50 loose)
• foot_thick controls foot wall thickness
• Ribbed external wall texture (toggle with rib_enable)
• Same partition, column, and fin layout as tray.scad
• No bottom hatch (foot occupies that face)

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Parameters

Shared across all three scripts

Parameter	Default	Description
wall_height	40	Outer wall height in mm
wall_thick	3	Outer wall thickness
corner_r	8	Corner radius
floor_thick	2	Floor slab thickness
int_wall_height	30	Internal wall height above floor
int_wall_thick	2	Internal wall thickness
col_count	3	Number of vertical columns
col_widths	[1, 1.618, 1]	Relative column widths
col_rows	[2, 3, 1]	Horizontal subdivisions per column
col_fins	[false, false, true]	Per-column fin toggle
fins_enable	true	Master fin toggle
fin_orient	"width"	Wave direction: "width" or "length"
fin_wave_amp	3.0	Wave amplitude in mm (3–7)
fin_period	14	Wave period in mm
fin_z_offset	0	mm above floor where wave trough starts
fin_steps	32	Wave resolution (reduce for faster preview)
rib_width	3.0	External rib width in mm
rib_depth	1.5	External rib protrusion in mm
rib_gap	1.5	Gap between ribs
rib_taper	1.0	Rib top/bottom width ratio (1 = uniform)

tray.scad only

Parameter	Default	Description
tray_width / tray_length	200	Outer dimensions in mm
hatch_enable	true	Bottom hatch texture on/off
hatch_width	0.8	Hatch groove width
hatch_depth	0.5	Hatch groove depth
hatch_gap	3.5	Spacing between grooves

tray_gridfinity.scad and tray_stack.scad

Parameter	Default	Description
gf_cells_x	3–4	Grid cells in X — width = cells × 42mm
gf_cells_y	3–4	Grid cells in Y — length = cells × 42mm
gf_magnets	false / true	Magnet pockets per cell corner
gf_magnet_od	6.5	Magnet hole diameter
gf_magnet_depth	2.4	Magnet hole depth
gf_center_screw	false	Center screw hole per cell
gf_center_screw_od	3.0	Screw hole diameter

tray_stack.scad only

Parameter	Default	Description
gf_base	true	GF socket on foot bottom face
stack_depth	4	Foot height when gf_base = false
stack_tolerance	0.30	Radial gap per side between foot and lower tray
foot_thick	2	Foot wall thickness
rib_enable	false	External rib texture on/off

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Usage

Open the script in OpenSCAD and edit parameters at the top. To render all example variants:

bash render.sh

Output STL and PNG files go to output/.

Requirements

OpenSCAD 2021.01 or later.

Published models

• MakerWorld
• Printables
• Thingiverse

License

CC BY-NC-SA 4.0 — see LICENSE