Gridfinity Generator

Why use this online gridfinity generator?

Most printable-storage projects start with someone else's fixed STL. A parametric gridfinity generator flips that: you decide how many grid cells the part occupies, how tall it stands in 7 mm units, how thick the walls are, and whether the bin carries dividers, a stacking lip, or magnet pockets. The geometry engine then computes the exact community footprint — each cell pitches at 42 mm and the whole outline loses 0.5 mm total for sliding fit — so a 2 × 2 bin measures 83.5 × 83.5 mm, not a rounded guess.

Because everything happens locally, the gridfinity generator never queues your job on a server. Change a number, the preview rebuilds in milliseconds, and the STL you download always matches the parameters on screen — the export button re-reads the current configuration instead of reusing a stale mesh.

What the gridfinity generator can build

How the gridfinity generator works

1. 1

   Choose bin or baseplate

   The gridfinity generator opens with a bin preset; switch tabs to generate the foundation plate instead.

2. 2

   Set the grid size

   Enter width and depth in cells. The live dimensions panel converts cells to millimeters instantly: 3 cells wide prints 125.5 mm.

3. 3

   Tune height and features

   Pick height in U units (1U = 7 mm), toggle the stacking lip, dividers, or magnet pockets as needed.

4. 4

   Download the STL

   Press download and the gridfinity generator writes the file locally — the same parameters you see are the ones you print.

Gridfinity generator dimensions cheat sheet

The table below lists the numbers the gridfinity generator uses for every model, so you can plan a drawer layout before printing anything. Widths follow the rule of 42 mm per cell minus 0.5 mm once for the whole outline; heights are multiples of 7 mm with the 4.75 mm foot already included.

Reading the numbers like the gridfinity generator does

• Grid pitch: neighboring cell centers sit exactly 42 mm apart, on both axes.
• Outline clearance: 0.5 mm subtracted once from the total width, never per cell — a 3-cell bin is 125.5 mm wide, not 124.5.
• Height units: 1U equals 7 mm and already contains the 4.75 mm foot, so a 6U bin stands 42 mm tall before its lip.
• Stacking lip: adds 3.8 mm above the rim so stacked bins seat into the bin below.

Print settings for gridfinity generator models

Models from the gridfinity generator print well in PLA or PETG at 0.2 mm layer height with two perimeters and 15 % infill. The foot chamfer prints best face-down on the plate; if you enable magnet pockets, orient the bin so the pockets point up and pause-free insertion stays easy. Because the outline already carries 0.5 mm of clearance, print at your machine's true dimensions — do not add horizontal expansion, or bins may sit loose on the baseplate.

Before committing to a full drawer, print one 1 × 1 bin and one 1 × 1 baseplate from the gridfinity generator and test the fit. If the parts bind, your printer's XY tolerance is tight; if they wobble, check belt tension — the generated geometry itself never changes.

From the gridfinity generator to a full drawer

Measure the drawer interior, divide by 42 mm, and you know how many cells fit. The hub page explains the system, the dimensions tool converts any cell count into exact millimeters, and the ALEX planner splits oversized plates into printable pieces automatically. Start with a baseplate that fills the drawer, then let the gridfinity generator fill each cell with bins sized to what actually lives there — screwdriver bins 4U tall, small-parts bins 2U, and a socket organizer where round tools gather.

When your collection grows, regenerate instead of rebuying: open the gridfinity generator, change one number, and print the upgrade. That is the whole point of parametric storage — the system adapts at the speed of a print.