Home and desk
This tool generates a slotted rack that keeps food container lids upright in a drawer or cupboard and exports it as STL. Lids stand on edge between the dividers instead of piling up, so you see the one you need without pulling the rest out. You enter slot count, slot width, divider thickness, divider height and base depth in millimetres.
Outer width is slot count times slot width plus the dividers and is shown in the panel. Dividers can be flat, rounded on top or sloped with a low front, and the base can be rounded up to fit Gridfinity cells.
Free, no sign-up. Change the sizes in millimetres and download the STL.
Each variant is the same template with different settings. Follow the link and the editor opens with those values.
Divider shape: Rounded top · Slot count: 6 · Slot width: 15 mm +3
Open this variant: 6 slots, rounded top
Divider shape: Sloped (low front) · Slot count: 10 · Slot width: 12 mm +4
Open this variant: 10 slots, sloped, anti-slip
Divider shape: Flat · Slot count: 4 · Slot width: 14 mm +4
Open this variant: 4 slots, Gridfinity baseThese values are edited in the editor's template panel. A number outside the range is clamped to the nearest limit automatically.
| Size | Range | Default |
|---|---|---|
| Shape | ||
| Divider shape | Flat, Rounded top, Sloped (low front) | Rounded top |
| Slot count | 3–15 | 6 |
| Dimensions | ||
| Slot width | 6–30 mm | 15 mm |
| Divider thickness | 1.2–4 mm | 2 mm |
| Divider height | 30–150 mm | 90 mm |
| Base depth | 60–250 mm | 120 mm |
| Options | ||
| Gridfinity base | On / Off | Off |
| Anti-slip pad recesses * | On / Off | Off |
Sizes marked with a star appear in the panel only when the related shape, style or option is active.
Tall, thin dividers wobble under the nozzle while printing and flex when you pull a lid out. The panel shows the ratio of divider height to wall thickness and warns when it goes above 50 or when the wall drops under 1.2 mm. For a 90 mm divider a 2 mm wall is a good balance.
With Gridfinity on, the tool rounds outer width and depth up to whole 42 mm cells and adds the standard 7 mm base profile. Slots are centred and the spare width is shared equally on both sides. Anti-slip recesses are switched off in this mode because the base sits in a baseplate.
For flat lids add 2-3 mm to the lid thickness. For lids with a tall rim, turn the lid on its side and measure the thickest point; 15 mm suits most plastic containers.
Turn on the anti-slip recesses; Ø10 mm self-adhesive silicone bumpers fit underneath. Above 160 mm width two more pads are added in the middle.
Use fewer slots and place two organizers side by side. The panel warns when the largest dimension goes over 220 mm.
This tool generates a divider box at the outside dimensions you type in and exports it as an STL. Enter width, depth and height, pick the number of rows and columns, and the divider walls split the interior into equal cells while the model updates in your browser.
Sizes and details: Divider box
This tool generates a Gridfinity bin from a cell count and a height in units and exports it as an STL. Switch dividers, finger scoop, label shelf and stacking lip on or off; the model is rebuilt in your browser.
Sizes and details: Gridfinity bin
This page opens the DrawSTL box with lid template: a parametric rectangular storage box with a press-fit lid that you size in millimetres and download as a print-ready STL. Width, depth and height are inner dimensions and the wall is added outside them, so typing 60x40x30 mm really gives you that much usable space.
Sizes and details: Box with lidOpen the template in the editor, enter your values and download a print-ready STL. No account needed.