Rendered from the file you download.
About this model
Turning the knob on the lid swings a small linkage that slides two bars out past the lid's edge and into the box, locking it shut; turning it back draws them in. Nothing shows from the outside, so opening it becomes a small puzzle for whoever receives it.
This plain version suits any occasion and holds a standard gift card. It prints in eight pieces without supports: the linkages snap together and only the knob needs a dab of glue.
What you need
From the creator’s instructionsIn this download
- Container, lid and knurled knob STLs.
- One STL holding all five linkages: one inner, two mid and two outer.
You also need
- A small amount of glue for the knob.
Before printing
- Print every piece in the orientation it comes in, with no supports.
- If the mid linkages break, print them in PETG.
Assembly
- Turn the lid upside down and place the inner linkage and both outer linkages. The outer linkages have one flat face and one slightly tapered face: the flat face goes against the lid.
- With the inner linkage horizontal and the outer linkages sticking out about 5 mm past the lid's edge, press the two mid linkages straight down onto them until they snap in. Pressing at an angle can snap them.
- Fit the knob onto the inner linkage on the top of the lid and check the mechanism moves smoothly, then fix it with a small amount of glue. Too much glue can lock the mechanism; drying the assembly upside down keeps glue from running.
How to use it
- Turn the knob to retract the locking bars, lift the lid, place the gift card inside, close the lid and turn the knob back to lock it.
Licence and attribution
The file remains available under its retained source licence. These permissions and obligations come from IteraMesh’s supported licence profile.
No attribution is required. You may still credit JamesThePrinter as the creator.
Notices retained with this model
- The mechanism is a simpler version of the creator's own Mechanically Locking Container, with the gift-box idea inspired by frikarte3D.
A copyright licence covers the file. It does not grant rights to a trademark, design, patent, person’s likeness, or safety-critical use depicted by the model.
Source and provenance
Licensed import- Original creator
- JamesThePrinter · profile ↗
- Source page
- https://makerworld.com/en/models/74951-mechanically-locking-gift-card-box
- Original download
- https://makerworld.com/api/v1/design-service/instance/844899/f3mf?type=download&fileType=3mfstl
- Added to IteraMesh
- 22 October 2026
- Licence checked
- 22 October 2026, on the source page
- Changes
- None — the file is hosted as acquired
- File fingerprint
- sha256:789cb…10b9c5
IteraMesh hosts this copy under its licence. JamesThePrinter made it; IteraMesh did not.
Printing and safety
- File check
- Geometry validated before publication
- Units
- Not stated in stored evidence
- Printer and material
- Not verified by IteraMesh
- Assembly
- Not verified by IteraMesh