Gridfinity Bin Generator
This gridfinity bin generator builds the box itself: choose the cell footprint, set height in 7 mm units, then tune wall thickness, floor thickness, dividers, the stacking lip and magnet pockets until the bin fits its contents — not the other way around. The gridfinity bin generator opens on a 2 × 2 × 3U default, rebuilds the 3D preview on every change, and exports a watertight STL straight from your browser.
Every dimension comes from the community standard's unified formula: outer size equals cells × 42 − 0.5 mm, subtracted once for the whole outline; height counts in U units of 7 mm with the 4.75 mm foot already included; the stacking lip adds 3.8 mm above the rim. The gridfinity bin generator applies all three rules on every keystroke, so the size panel is always the size you print.
Walls run from 0.8 to 4 mm (default 1.2), floors from 0.6 to 10 mm (default 0.8), and up to ten dividers per axis turn one cavity into a compartment grid. No login, no upload, no server — the gridfinity bin generator keeps geometry and export local, and the mesh is watertight-validated before download.
Why use this gridfinity bin generator?
Most bin libraries hand you a fixed cavity and hope your parts fit. A parametric gridfinity bin generator inverts that: measure the screws, bits or cables you actually store, convert them into cells and U units, and let the tool compute the envelope. A 2 × 3 bin lands at 83.5 × 125.5 mm; a 6U bin stands exactly 42 mm before its lip — 45.8 mm with it.
Because the formula is unified, features respect it: dividers subtract wall thickness from the cavity but never from the footprint, and the lip changes real height rather than a cosmetic flag. The gridfinity bin generator recalculates inner width, inner depth and cavity depth as you type — that is how you know a 1.2 mm wall still leaves a usable opening on a 1 × 1.
What the gridfinity bin generator customizes
How the gridfinity bin generator works
- 1
Set the footprint
Enter X and Y cells; the outer size updates instantly — 2 × 2 means 83.5 × 83.5 mm.
- 2
Choose height in U
1U is 7 mm including the 4.75 mm foot, so 3U stands 21 mm and 6U hits 42 mm nominal.
- 3
Tune walls, floor, dividers
Slide wall thickness across 0.8-4 mm, floor across 0.6-10 mm, and add up to ten dividers per axis.
- 4
Toggle, check, download
Flip the stacking lip and magnet pockets, read the live size panel, and export a watertight binary STL in millimeters.
Gridfinity bin generator dimension table
The table lists the numbers behind the gridfinity bin generator's size panel. Footprints follow cells × 42 − 0.5 mm — subtracted once for the whole outline, never per cell — and heights stack in 7 mm units with the foot already inside. Nothing here is rounded for display.
| Configuration | Footprint | Height |
|---|---|---|
| 1 × 1 bin, 2U | 41.5 × 41.5 mm | 14 mm |
| 2 × 2 × 3U (default) | 83.5 × 83.5 mm | 21 mm + 3.8 mm lip |
| 2 × 3 bin, 4U | 83.5 × 125.5 mm | 28 mm + 3.8 mm lip |
| 6U bin, any footprint | cells × 42 − 0.5 mm | 42 mm (45.8 with lip) |
| Magnet pocket | Ø6.5 mm | 2.4 mm deep |
| Foot height | tapered, per cell | 4.75 mm inside 1U |
Details the gridfinity bin generator never rounds
- Outline clearance: 0.5 mm comes off the total once in the gridfinity bin generator — a 2-cell bin is 83.5 mm wide, not 83.
- Height units: 1U = 7 mm with the 4.75 mm foot already counted, so 3U is 21 mm of real bin.
- Stacking lip: the gridfinity bin generator adds +3.8 mm above the rim and shows nominal and total heights separately.
- Magnet pockets: Ø6.5 × 2.4 mm seats common 6 × 2 mm magnets at the standard press fit.
Print settings for gridfinity bin generator models
Bins from the gridfinity bin generator print well in PLA or PETG at 0.2 mm layers with two perimeters and 15 % infill; the default 1.2 mm wall suits both materials. Orient bins so the foot chamfer prints face-down, and flip them when magnet pockets are on so insertion stays pause-free. Print at true scale — the outline already carries its 0.5 mm of clearance, so horizontal expansion only loosens the fit.
Print the 2 × 2 × 3U default once before batch-printing a drawer of bins. If it drops into your plate with even friction on all four sides, keep the settings; the gridfinity bin generator's geometry is constant, so any bind or wobble traces to the printer, not the model.
From the gridfinity bin generator to a full drawer
A plate's cell count is a budget. One 4 × 3 baseplate holds three 2 × 2 bins exactly, or a mix of 1 × 1s and a 2 × 3 for hand tools. Use the gridfinity bin generator per contents — 2U for small parts, 4U for drivers — and leave a cell or two empty, because collections grow.
When contents change, regenerate instead of rebuying: open the gridfinity bin generator, move one slider, print the replacement. Parametric storage means the layout follows the workshop, never the reverse.
Sources & references
“Gridfinity storage is built on a 42 mm square grid with 7 mm height units” — the community-maintained open specification this site implements and cross-checks against.
- Gridfinity community specification— the community-maintained geometry specification our models implement
- Gridfinity reference documentation— profile reference used to verify the foot, lip and socket dimensions
- Gridfinity Rebuilt (OpenSCAD)— open-source reference implementation we cross-check generated geometry against
Frequently Asked Questions
Is the gridfinity bin generator free?
Yes. Like every tool on this site, the gridfinity bin generator runs in your browser, asks for no account, and downloads watertight STL files at no cost, with no print limits.
What are the gridfinity bin generator's default settings?
The tool opens on a 2 × 2 × 3U bin: 83.5 × 83.5 mm footprint, 21 mm tall, 1.2 mm walls, 0.8 mm floor, no dividers, lip and magnets off — a deliberate middle ground for a first print.
How many dividers can one bin take?
Up to ten along X and ten along Y in the gridfinity bin generator. The cavity shrinks accordingly, and the size panel shows inner width and depth live, so you can stop before compartments get too small to use.
Will bins from this gridfinity bin generator fit plates from other tools?
Yes. The gridfinity bin generator follows the community standard — 42 mm pitch, 7 mm units, 0.5 mm total clearance, standard foot and lip — so bins drop into any conforming baseplate.