This 3D printable storage box is designed in the shape of a classic custard cream biscuit and provides a compact, decorative container for small items. The design prints as a three-part assembly consisting of a top lid, bottom shell, and removable inner tray. Once assembled, the box forms a functional storage container suitable for jewellery, craft supplies, small tools, or desk accessories.

The design includes optional magnet pockets for secure lid closure and integrated hinge features that slide into place during assembly.

Features

Three-part design for straightforward printing and assemblyCustard cream biscuit-inspired decorative exteriorIntegrated hinge system designed to slide into the lid slotsOptional magnet pockets for secure closure (10 × 3 mm round magnets)Removable inner tray compartmentSuitable for storing jewellery, craft materials, small parts, or desk itemsScalable design for alternative magnet sizes or custom dimensions

Technical Details

Assembled Dimensions: 100 mm (W) × 80 mm (L) × 38 mm (H)Inner Compartment Size: 86 mm × 66 mm × 18 mm usable spaceMagnet Size: Designed for 10 × 3 mm round magnetsDesign Format: STLAssembly Type: Multi-part assembly with sliding hinge components

Files Included

Lid STL fileBase STL fileInner tray STL file

Usage Notes

The top and bottom components are oriented upright and tilted approximately 20 degrees in the provided files so they import into most slicers in the intended print orientation.

A brim is recommended for bed adhesion. Tree supports are suggested to support the inner upper edges of the lid. Printing without supports is possible but may increase the risk of print failure depending on bed adhesion and printer tuning.

The inner tray is a simple print-in-place component. Hinges should release easily once removed from the build plate if print settings are properly calibrated.

During assembly, the inner tray snaps into the bottom shell. Small amounts of adhesive may be used to permanently secure components if desired. Magnet pockets in the lid are sized for optional 10 × 3 mm round magnets to provide a snap-shut closure.