BinaryBin – 16-Digit Binary Coded Lockable Container
The BinaryBin is a fully 3D-printable, snap-together locking container powered by a programmable 16-bit binary code. It’s part puzzle, part teaching tool, and 100% nerdy—in the best possible way. What Makes It Special:
- Mechanical DIP-style binary switches (16 total) grouped into 4 nibbles for easy binary → hex conversion
- Orbital gear-driven lock system that only disengages when the correct code is entered
- Programmable mechanism lets you set your own combination
- Non-binary switch state lets you “erase” the visible code after unlocking
- Hexadecimal encoding legend built into the layout (great for teaching or learning)
- Concealed mechanical latches, controlled entirely by the geartrain
- Fully printable — no electronics, no glue, no screws
Educational & Fun Learn (or teach) how binary and hexadecimal systems work—by actually using them. It’s a brainy hands-on demo disguised as a seriously cool lockbox.
Ideal For:
- Puzzle lovers & escape room designers
- STEM educators & students
- Nerdy gift-givers
- Makers and collectors of mechanical marvels
Printing Tips:
- No supports required – all necessary supports are built in
- Includes an optional tool for disassembly
- PLA recommended with standard 0.4mm nozzle
- Full print & slicer settings included in the images
Code it. Turn it. Unlock it. The BinaryBin isn’t just a container—it’s a hands-on lesson in binary logic, gears, and clever design. Post your prints, remix your codes, and share your builds!
Please see the linked video for assembly instructions.
Related Links 3-digit Logical CardLock Case - The Programmable Gift Card Case with a Twist 4-digit Logical CardLock Case - The Programmable Cash Case with a Twist PuzzleLock Box — Lock and Puzzle in a Box Programmable Combination Lock Gift Box StashCan 2.1 - 3D Printed Secret Safe with Programmable Lock Sequential Discovery Puzzle Gift Box #1 (GBS1) Centrifugally Unlocked Lock Box (BXC1) Locking Heart - Spin To Open
Please join the LogicalPlanet Discord community via my linktree to discuss this and any other LogicalPlanet projects, upcoming projects, ideas and anything else related to LogicalPlanet.
https://www.logicalplanet.com/ email me at logicalplanet3d@gmail.com
Revisions and Updates I occasionally update and revise my designs. When I do, I’ll document the changes here. Check back periodically for the latest revision notes or if you’re experiencing any issues with a model.
2025-06-10: I have added non-AMS versions of the lid and switch plate.
BinaryBin – 16-Digit Binary Coded Lockable Container
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Hey man great thing to make and I'm sure I'll have all kinds of fun trying to get this printed and working right. Would have been nice had you made a PDF to come alone with the zip file of the steps and settings so we did not have keep coming back to this page over and over again, so I did you a +1 and did the work of making a PDF of the build based off the pics in your posting. Could you reach out to me to let me know how I can get to you so you can put it up and link it in your posting?
Thank you. Email me at logicalplanet3d gmail.com. Very much appreciated. I have an instructional video coming as well. Hopefully post it tomorrow.
As always, it's just a "head off", I'm horrified by your engineering knowledge. _) It's super cool!!! I'm still very impressed with the Phone Multi Widget.
Haha, thanks. I appreciate the encouragement. :-)