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Descrição
Compatible with the original Gridfinity system by Zack Freedman.
Overview
This is a lightweight and minimal case designed to hold Gridfinity bins.
I created it with the following goals in mind:
Ultra-lightweight design
Fast printing
Simple and clean linear aesthetics
Fully parametric
Optional transparent window
Easy assembly without screws or hardware
Ability to build very compact sizes (starting from 1x1x3U)
Although I really appreciated and drew inspiration from Matthew’s (Modern Gridfinity Case) and Suit’s (Gridfinity Rugged Case "Light" R3) projects, neither of them included all the features I wanted.
So I decided to design my own version from scratch.
Features
Two-part design (no window version): only Top and Bottom
Window version: includes an additional printed grid frame to hold the transparent sheet
Integrated latches: built directly into the Top (no separate parts required)
Secure closing mechanism
⚠ While the latch holds well, avoid shaking or flipping the case, especially when storing heavy items.
Why This Version?
Reduced material usage compared to most cases
Faster print time
Clean aesthetic without external hardware
Fully parametric for easy customization
Available Sizes
1 x 1 x (3U, 4U, 6U)
2 x 1 x (3U, 4U, 6U)
2 x 2 x (3U, 4U, 6U)
3 x 2 x (3U, 4U, 6U)
3 x 3 x (3U, 4U, 6U, 9U)
4 x 3 x (3U, 4U, 6U, 9U)
4 x 4 x (3U, 4U, 6U, 9U)
5 x 4 x (3U, 4U, 6U, 9U)
6 x 5 x (3U, 4U, 6U, 9U)
6 x 6 x (3U, 4U, 6U, 9U)
Others on request
Materials
No screws or hardware required.
For the window version, use clear binding cover sheets (commonly used for spiral-bound documents). Recommended thickness: 0.3 mm
Print Settings
Layer height: 0.20 – 0.32 mm
(All my prints were made at 0.32 mm without issues.)Infill: 10% (15% for increased strength)
No supports required
Assembly
Transparent Cover Version
To install the transparent cover:
Place the lid upside down on a flat surface.
Lay the transparent binding film evenly inside the lid frame.
Press the retaining grid into place until it snaps securely into the lid.

To connect the Lid and Bottom
Insert a piece of filament through the hinge.
Optionally melt the filament ends slightly to prevent it from sliding out.
Adjustment Tip
If the latch feels too loose after printing:
Warm it slightly using a hair dryer.
Gently press it inward to increase resistance and improve the locking strength.
Filament Usage Comparison
Model | Size | Filament (g) | Notes |
|---|---|---|---|
Gridfinity Ultra Light Case (This Model) | 3x4x6U | 155 g | Minimal design |
3x4x6U | 241 g | Reference model | |
3x4x6U | 230 g | Reference model |
Gridfinity Minimal Case / Box Light - 60+ Sizes
Publicado em 26 de jul de 2026
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