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Flexible plug / lid for 'gridfinity rebuilt'

Flexible TPU plug for standard gridfinity rebuilt containers
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updated December 14, 2025

Description

PDF

When storing many small items such as screws or components in a gridfinity rebuilt bin, there's always a risk of spilling. This lid / plug fits onto the standard 1x1 bin with one or two compartments and a label tab. The plug can be inserted and removed again with little force, making it convenient in everyday use, but stays in place even when shaking the box upside down.

  • Notched edge for secure fit

  • Wider top edge to avoid insertion too far into the bin

  • Angled edge on one side to avoid snagging the label tab

  • Max ~1mm gap, no components can fall out

  • Handle for easy removal of the plug

  • Not stackable (duh)

Printed with (Elegoo) TPU 95A.

Designed in FreeCAD, original CAD file attached. Somewhat parametric using DynamicData workbench.

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Model origin

The author marked this model as their own original creation.

License