Safe – First Aid Box with NFC lock

Safe – First Aid Box with NFC lock

Exterior Design 

The safe is designed as a stylized wall-mounted first aid box. The housing is two-colored – white with black accents (e.g., frame, handle, hinges). On the front flap there is a distinctive green cross, exactly like the symbol found on first aid kits. The cross is durable (powder coating or plastic insert).

Construction and Purpose

The safe is designed to accommodate a popular, low-cost RFID/NFC card lock (available on Chinese platforms such as AliExpress, Temu, etc.). The design includes factory mounting points and a cable feed-through for the reader (in case the lock requires battery or external power). When closed, the lock remains invisible from the outside – only the reader plate or card slot is visible.

Hinge – Important Assembly Note

For assembly, I recommend using a metal rod with a length of 25 mm and a diameter of 4 mm, which serves as the hinge connecting the front flap to the main body of the safe. However, a 3D-printable version of such a rod is also included in the model – this gives you a choice: you can use a stronger metal rod or, if needed, the printed version (though the printed one will be mechanically less durable).

Applications

Ideal for storing:

• cash,
• documents,
• spare keys,
• jewelry,
• or, on the contrary – first aid supplies (in keeping with the form).
• alcohol :D

📢 LICENSE – PLEASE READ CAREFULLY

LICENSE FOR PERSONAL USE ONLY.
This project (including the description, concept, drawings, dimensions, green cross graphic design, and NFC lock mounting layout) is provided exclusively for private, non-commercial use.

Prohibited:
– copying, selling, or sharing project files with anyone,
– commercial manufacturing of safes based on this description,
– using the first aid box design with the green cross for any commercial purpose (including custom orders).

Permitted:
– making one (1) unit of the safe for your own personal use, at home or in a non-commercial workshop.