🔑 Key Case – 100% 3D Printable Key Organizer

The Key Case is a compact and modular key holder, designed for practicality, simplicity, and full 3D printability. This project is entirely 3D printable, with no screws, springs, or metal parts required. Just print, assemble, and it’s ready to use.

It keeps your keys silent, secure, and easy to access, all in a lightweight and modern design.

📦 Available Versions

KeyCase Mini 2 Keys
Ideal for carrying just the essentials.

KeyCase Mini 4 Keys
A slightly larger version with space for more keys.

KeyCase Big 4 Keys
Wider and more comfortable for larger hands or bulkier keys.

🖨️ Printing Recommendations

To ensure durability and smooth functionality, it's recommended to print using:

PLA+ – easy to print and more durable than regular PLA
PETG – strong, flexible, and heat-resistant, ideal for daily use

All models are optimized for standard FDM 3D printers, with tested tolerances to provide snug fits and reliable assembly.

⚙️ Features

Fully tool-free assembly
Integrated clip for attaching to keyrings, bags, or belts
Includes spacers of different sizes (washer-style) to place between keys, preventing rattling and making rotation smoother
Ergonomic and portable design
Customizable and printable at home

🛠️ Assembly Tip

If the bottom connection feels slightly loose after printing, you can insert a thin strand of filament (like a leftover PUP support line) into the slot to tighten the fit and eliminate any wobble.