A print-in-place puzzle box with a mysterious hexagon glyphs!

[https://youtu.be/MZP2tb3nzbc](https://youtu.be/MZP2tb3nzbc)

 

**Customization**
The project comes in a multi-color and single-color variants. Both versions work the same way, the multicolor option just makes it easier to read the symbols included on the model.

 
**Printing**
- This print requires a well-tuned printer that can reliably print 0.4mm tolerances between moving parts.
- This is a long print, but do not rush it. Print at speeds you know will produce mechanically reliable parts.
- Recommended print settings: 0.2mm layer height, 2-3 perimeter walls, average infill.
- Do not print with supports.
- Do not add a brim.
- Do not attempt to scale the print unless you've already successfully printed it at normal scale.
- Monitor the first few layers very closely for curling or other print issues.
- If printing the single-color version, a light color filament is recommended to make reading the symbols on the design easier.
- If printing the multi-color version, select highly contrasting colors for all symbols and parts labeled "raised".
 
**Verify a Successful Print**
There is always a risk that mechanical print-in-place designs will fail to print properly. In this case, a failed print could result in a puzzle that is impossible to solve.

If the following checks pass, you should have a functioning puzzle.

- All six dials rotate freely. If they don't, you may be able to use force to free them up.
- Is the central core of the puzzle (the area enclosed by all six dials) free to wiggle and raise slightly?
 
**Solution**
[Watch the video above](https://youtu.be/MZP2tb3nzbc) for a step-by-step puzzle solution.

**Can I sell copies of this?**

Yes! This project was shared under the [Creative Commons - Attribution](https://creativecommons.org/licenses/by/4.0/) license.

This license allows selling copies, but you must provide proper attribution, as detailed in the license itself.

Please note that any other projects linked here (remixes or related projects) may have a different license. Please respect those licenses.

This license applies only to the model files (STL, 3MF, STEP, F3D) included in this project. It does not apply to photos, videos, my logo, or other supplemental graphics attached to or displayed with this project.

**Recommended Attribution Text**

"Hexglyph Puzzle Box"(https://3dprinty.xyz/project/113) is designed by 3D Printy (https://3dprinty.xyz) and shared under a Creative Commons Attribution (CC BY 4.0) license (https://creativecommons.org/licenses/by/4.0/).

Hexglyph Print-in-place Puzzle Box

Hexglyph Puzzle Box.stl

A high pressure hydrant head-scratcher with multiple hidden compartments.

**Puzzle Solution**
[https://youtu.be/swrISxBe1C8](https://youtu.be/swrISxBe1C8)

**Puzzle Assembly**
[https://youtu.be/w-68HnlEciQ](https://youtu.be/w-68HnlEciQ)


**Recommended Hardware**

While the puzzle box can be assembled with only glue, the following hardware is recommended for improved puzzle box strength, a more satisfying puzzle mechanism movement, and a bonus secondary hidden compartment.

**12mm M3 socket head bolts - Qty 6**
Up to 24mm long is also acceptable
 
**6x3mm cylinder magnets - Qty 6**
Required for the bonus hidden compartment)
 
**3x3mm cylinder magnets - Qty 24**
Adds a satisfying snap to the puzzle mechanism.


**Printing**

- Designed for 0.2mm layer heights and 0.4mm line widths.
- All parts can be printed without supports.
- Add a brim on smaller parts if bed adhesion is an issue. Warping may result in an unsolvable puzzle.



**Can I sell copies of this?**

Yes! This project was shared under the [Creative Commons - Attribution](https://creativecommons.org/licenses/by/4.0/) license.

This license allows selling copies, but you must provide proper attribution, as detailed in the license itself.

Please note that any other projects linked here (remixes or related projects) may have a different license. Please respect those licenses.

This license applies only to the model files (STL, 3MF, STEP, F3D) included in this project. It does not apply to photos, videos, my logo, or other supplemental graphics attached to or displayed with this project.

**Recommended Attribution Text**

"6-Alarm Puzzle Box" (https://3dprinty.xyz/project/124) is designed by 3D Printy (https://3dprinty.xyz) and shared under a Creative Commons Attribution (CC BY 4.0) license (https://creativecommons.org/licenses/by/4.0/).

6-Alarm Puzzle Box

Demo - Exploded.stl

Giant Valentine's Day themed puzzle box: find the hidden heart (or your own custom prize).

[youtu.be/SuOGrPg5MMU](youtu.be/SuOGrPg5MMU)

**Prize Compartment Dimensions**

The prize compartment is 20mm x 16mm x 40mm, not including additional space in the triangular portion of the recess.

**Printing**

- All parts can be printed without supports.
- Some printers may require brims for bed adhesion.
- Print two copies of the side model - one copy will fit on either side of the box.
- If you plan to assemble without any hardware, consider adding a very slight fuzzy skin texture to give the parts a tighter fit.


**Hardware**

This puzzle box does not require hardware to work, but the following additional parts are recommended to help guide pieces when opening and provide a nicer overall feel to the solution. You can also use a subset of the following requested hardware.

- **6x3mm cylinder magnets (qty: 16)**
These magnets provide a springy button feel to the puzzle core and firmly hold the side hearts in place.
- **6-24mm M3 cap head bold (qty: 1)**
This bolt is used to permanently trap the puzzle core inside the case. This makes resetting the puzzle easier.


**Assembly**

_Test fitting and hardware-free assembly_

Go through the following steps to test fit all puzzle parts. These parts SHOULD slide together easily, but sanding may be required if parts are not printed accurately or with a consistent surface.

- Slide the puzzle core into the case so that the small heart-shaped hole at the top of the case lines up with the similarly sized heart-shaped hole that runs entirely through the side of the core.
- Press both side hearts into the case so that the core latches onto the track built into each side part. The heart on the right slides on first, so if both parts are not latching, reverse your assembly order.
- Lock the core in place by sliding the key vertically through the case and core. The key should rest flush with the top of the case.

If all parts fit, you can continue on to hardware assembly - or stop here if you want to use the puzzle without the recommended hardware.


_Hardware Assembly_

- After test fitting all parts as described above, take apart the puzzle
- Insert an M3 cap head bolt into the smallest hole in the puzzle core and tighten it until the cap head sits entirely within the recessed hole.
- Glue one 6x3mm magnet into each of the side hearts. For easier reassembly, use the same magnet orientation for each heart so it will not matter which heart is which.
- Glue one 6x3mm magnet into each side of the core so that the magnet orientation will pull the side hearts toward the core when latched.
- Glue two 6x3mm magnets into the holes near the bottom of the core. Because these holes are closely spaced, it may be easiest to insert the magnets with opposite orientations so they pull toward each while seated in their holes.
- While keeping the magnet orientations from the previous step in mind, glue two 6x3mm magnets into the case so that the magnets will pull the siding core toward its neutral position. This is easy to mix up, so double check the magnets before gluing them in.
- Glue a 6x3mm magnet into the puzzle key. Make sure the magnet is pushed all the way into its hole to prevent future jamming.
- Use a flathead screwdriver or other long flat metal tool to glue a 6x3mm magnet into the recessed magnet hole hidden inside the long heart-shaped shaft that runs through the middle of the puzzle core. This spot is easy to miss, so use a light to find it before attempting to insert the magnet. Depending on the magnet orientation, the key can either be set to jump out to the puzzle solver or snap back to its neutral position. Both options are good, but the latter makes removing the key slightly trickier.
- Once all glue is set, add the puzzle prize to the core then insert the core into the case.
- Slide the puzzle core so that the M3 bolt installed in step 2 is visible through the heart-shaped key hole at the top of the puzzle. Loosen the bolt by a couple turns so it no longer sits entirely within its recessed hole. Verify that the core can still slide back and forth, but automatically stops before sliding out of the case in either direction.
- Continue assembling the puzzle using the test fitting steps from before.



**Can I sell copies of this?**

Yes! This project was shared under the [Creative Commons - Attribution](https://creativecommons.org/licenses/by/4.0/) license.

This license allows selling copies, but you must provide proper attribution, as detailed in the license itself.

Please note that any other projects linked here (remixes or related projects) may have a different license. Please respect those licenses.

This license applies only to the model files (STL, 3MF, STEP, F3D) included in this project. It does not apply to photos, videos, my logo, or other supplemental graphics attached to or displayed with this project.

Giant Valentine's Day Heart Thump Puzzle Box (Easy)

Demo - Assembled.3mf

Prize Compartment Lid.3mf

Prize Compartment Lid.stl

Gift-friendly Valentine's Day themed puzzle box: find the hidden heart.

[youtu.be/SuOGrPg5MMU](youtu.be/SuOGrPg5MMU)



**Printing**

- All parts can be printed without supports.
- Some printers may require brims for bed adhesion.
- Print two copies of the side model - one copy will fit on either side of the box.
- If you plan to assemble without any hardware, consider adding a very slight fuzzy skin texture to give the parts a tighter fit.


**Hardware**

This puzzle box does not require hardware to work, but the following additional parts are recommended to help guide pieces when opening and provide a nicer overall feel to the solution. You can also use a subset of the following requested hardware.

- **6x3mm cylinder magnets (qty: 8)**
These magnets provide a springy button feel to the puzzle core and firmly hold the side hearts in place.
- **3x3mm cylinder magnets (qty: 2)**
These magnets hold the key in place and provide a spring-like feel to its removal.
- **6-12mm M3 cap head bold (qty: 1)**
This bolt is used to permanently trap the puzzle core inside the case. This makes resetting the puzzle easier.



**Assembly**

_Test fitting and hardware-free assembly_

Go through the following steps to test fit all puzzle parts. These parts SHOULD slide together easily, but sanding may be required if parts are not printed accurately or with a consistent surface.

- Slide the puzzle core into the case so that the small heart-shaped hole at the top of the case lines up with the similarly sized heart-shaped hole that runs entirely through the side of the core.
- Press both side hearts into the case so that the core latches onto the track built into each side part. The heart on the right slides on first, so if both parts are not latching, reverse your assembly order.
- Lock the core in place by sliding the key vertically through the case and core. The key should rest flush with the top of the case.

If all parts fit, you can continue on to hardware assembly - or stop here if you want to use the puzzle without the recommended hardware.


_Hardware Assembly_

- After test fitting all parts as described above, take apart the puzzle
- Insert an M3 cap head bolt into the smallest hole in the puzzle core and tighten it until the cap head sits entirely within the recessed hole.
- Glue one 6x3mm magnet into each of the side hearts. For easier reassembly, use the same magnet orientation for each heart so it will not matter which heart is which.
- Glue one 6x3mm magnet into each side of the core so that the magnet orientation will pull the side hearts toward the core when latched.
- Glue two 6x3mm magnets into the holes near the bottom of the core. Because these holes are closely spaced, it may be easiest to insert the magnets with opposite orientations so they pull toward each while seated in their holes.
- While keeping the magnet orientations from the previous step in mind, glue two 6x3mm magnets into the case so that the magnets will pull the siding core toward its neutral position. This is easy to mix up, so double check the magnets before gluing them in.
- Glue a 3x3mm magnet into the puzzle key. Make sure the magnet is pushed all the way into its hole to prevent future jamming.
- Use a flathead screwdriver or other long flat metal tool to glue a 3x3mm magnet into the recessed magnet hole hidden inside the long heart-shaped shaft that runs through the middle of the puzzle core. This spot is easy to miss, so use a light to find it before attempting to insert the magnet. Depending on the magnet orientation, the key can either be set to jump out to the puzzle solver or snap back to its neutral position. Both options are good, but the latter makes removing the key slightly trickier.
- Once all glue is set, add the puzzle prize to the core then insert the core into the case.
- Slide the puzzle core so that the M3 bolt installed in step 2 is visible through the heart-shaped key hole at the top of the puzzle. Loosen the bolt by a couple turns so it no longer sits entirely within its recessed hole. Verify that the core can still slide back and forth, but automatically stops before sliding out of the case in either direction.
- Continue assembling the puzzle using the test fitting steps from before.


**Can I sell copies of this?**

Yes! This project was shared under the [Creative Commons - Attribution](https://creativecommons.org/licenses/by/4.0/) license.

This license allows selling copies, but you must provide proper attribution, as detailed in the license itself.

Please note that any other projects linked here (remixes or related projects) may have a different license. Please respect those licenses.

This license applies only to the model files (STL, 3MF, STEP, F3D) included in this project. It does not apply to photos, videos, my logo, or other supplemental graphics attached to or displayed with this project.

Valentine's Day Heart Thump Puzzle Box (Easy)

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](https://than.gs/m/1464652)
[4-digit Logical CardLock Case - The Programmable Cash Case with a Twist](https://than.gs/m/1467071)
[PuzzleLock Box — Lock and Puzzle in a Box](https://than.gs/m/1439725)
[Programmable Combination Lock Gift Box](https://than.gs/m/1204871)
[StashCan 2.1 - 3D Printed Secret Safe with Programmable Lock](https://than.gs/m/1060354)
[Sequential Discovery Puzzle Gift Box #1 (GBS1)](https://than.gs/m/1227965)
[Centrifugally Unlocked Lock Box (BXC1)](https://than.gs/m/1266146)
[Locking Heart - Spin To Open](https://than.gs/m/1266312)

---
Please [join the LogicalPlanet Discord community via my linktree](https://linktr.ee/logicalplanet) to discuss this and any other LogicalPlanet projects, upcoming projects, ideas and anything else related to LogicalPlanet.   

**[https://www.logicalplanet.com/](https://www.logicalplanet.com/)**
email me at [logicalplanet3d@gmail.com](mailto: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

BinaryBin 1v00a 121 Sun Gear and handle.stl

BinaryBin 1v00a 101 Lid (non-AMS version).stl

BinaryBin 1v00a 111 Switch Disk (non-AMS version).stl

The **PuzzeLock Box** is more than just a container — it’s a fully 3D-printed puzzle hidden inside a working lock. At first glance, it looks like a simple latch-box, but beneath its 2 mm-thick false floor lies a **programmable lock system** built entirely from printed parts.  

To open it, you’ll need to solve a sequence of steps:  
1. **Set the secret number dial** (42 possible positions)  
2. **Spin the box** to release the centrifugal latch  
3. **Slide the hinge into position**  
4. **Release the main latch**  

Only when each step is done correctly will the lid unlock.  
It’s part puzzle, part lock — and all 3D-printed fun.  

**Key Features**  
- **100% printed** – no hardware, screws, or extra parts required  
- **Programmable lock system** with your own secret number  
- **Unique puzzle sequence** – every opening feels like a mini adventure  
- **Snap-together design** with print-in-place latch  
- **Compact but useful**: inside cavity fits cash, cards, small valuables, or even a phone  
- **Great gift or challenge** – part puzzle, part secure stash  

**How it Works**  
- The **Secret Dial** (42 numbers) acts as a combination lock  
- A **Centrifugal Latch** with gravity weights forces you to spin the box on a flat surface  
- The **Sliding Hinge Section** controls both the dial and the latch  
- The **Latch Bar** at the front is the final lock, only freed once all conditions are met  

This layered system prevents “safe-cracking” by touch and guarantees that only the correct sequence will unlock it.  

**Specifications**  
- **Usable inside cavity**: 6.25" × 2.75" × 1" (158 × 70 × 25 mm)  
- **Outer dimensions**: 6.6" × 3.5" × 1.1" (168 × 89 × 28 mm)  
- **Lock mechanism thickness**: 2 mm layer in the floor  

**Printing & Materials**  
- **Box & Gears**: PLA  
- **Spring parts & False Bottom**: PETG (recommended for flexibility & transparency)  
- **No supports required** – built-in where necessary  
- **Print settings**:  
  - Nozzle: 0.4 mm  
  - Layer Height: 0.2 mm  
  - Walls: 4 (1.6 mm)  
  - Top/Bottom: 5 (1.0 mm)  
  - Infill: 40% Cubic (Box & Gears), 100% (Springs/False Bottom)  
  - Orientation: as per STL/3MF  

**Included**  
- STL/3MF files  
- Full 10-page **Instruction Manual** with step-by-step printing, assembly, and usage guide  
- Clear diagrams and pro tips for smooth operation  

---
**Related Links**
[3-digit Logical CardLock Case - The Programmable Gift Card Case with a Twist](https://than.gs/m/1464652)
[4-digit Logical CardLock Case - The Programmable Cash Case with a Twist](https://than.gs/m/1467071)
[BinaryBin – 16-Digit Binary Coded Lockable Container](https://than.gs/m/1354661)
[Programmable Combination Lock Gift Box](https://than.gs/m/1204871)
[StashCan 2.1 - 3D Printed Secret Safe with Programmable Lock](https://than.gs/m/1060354)
[Sequential Discovery Puzzle Gift Box #1 (GBS1)](https://than.gs/m/1227965)
[Centrifugally Unlocked Lock Box (BXC1)](https://than.gs/m/1266146)
[Locking Heart - Spin To Open](https://than.gs/m/1266312)

---
Please [join the LogicalPlanet Discord community via my linktree](https://linktr.ee/logicalplanet) to discuss this and any other LogicalPlanet projects, upcoming projects, ideas and anything else related to LogicalPlanet.   

**[https://www.logicalplanet.com/](https://www.logicalplanet.com/)**
email me at [logicalplanet3d@gmail.com](mailto: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.  
2025-10-10: I have uploaded a revised version of the Box [100] with improved geometry, which should allow it to release more easily.  The new design includes a new small piece of removable support, which is shown in the new PDF document attached.   I have also significantly expanded the assembly instructions with addtional diagrams.




PuzzleLock Box — Lock and Puzzle in a Box

PuzzeLock Box 1v00a02 100 Box.stl

_A cryptex is a portable, puzzle-like container, typically cylindrical, that stores a secret message or items behind a combination lock._


---
This cryptex looks like a Mark 2 hand grenade, with four numbered dials that make up the main shell of the grenade. Similar to [my other cryptex on MakerWorld](https://makerworld.com/en/models/1450159-number-cryptex-configurable-puzzle-container#profileId-1510514), it has ratcheting encoding rings that can be used to set any 4-digit passcode you want! And turning the dials is super satisfying thanks to the ratchet!

There are three different versions of the dials you can print:
- Plain — No numbers at all if you want to paint them yourself
- Inset numbers — The numbers are inset holes on the dial
- Embedded numbers — The numbers are embedded and can be painted in the slicer

If you add a small spring to the fuse, you can make the safety lever, "spoon", to pop off when the pin is pulled, just like in a real grenade!

&nbsp;

---
**Printing tips:**
The parts are already oriented optimally. _Inner cylinder_, _Fuse_ and _Safety lever_ need supports. Use tree supports for the _Safety lever_.

If you're using Orca Slicer or Bambu Studio, a handy project file is included that has my print settings and painted parts ready to go!

&nbsp;

---
**Assembly**
You'll need an optional spring, 0.5x5x25mm recommended, for the safety lever action. But the cryptex works just fine without it, it's just a little fun bonus! You can also use a keyring for the safety pin ring, or use a printable ring.

No other hardware required to assemble! If you have printed the *bolt tool* included with [my previous cryptex on MakerWorld](https://makerworld.com/en/models/1450159-number-cryptex-configurable-puzzle-container#profileId-1510514), it will also work for this installation! If not, the tool is included here as well! Or you can use a flat- or hex head screwdriver too.

See the included assembly guide video!

&nbsp;

---

_**If you enjoy my designs and want to sell prints of them, I have membership tiers with commercial license available! Also if you want to support me while getting access to all my premium designs, I have a cheap personal tier. [Please check out my membership plans!](https://than.gs/u/803093?plans=true&affiliateCode=Jaatinen3D) ❤**_

Hand Grenade Cryptex — Configurable 4-digit puzzle container

Grenade Cryptex - Bambu Project.3mf

This model is a multipart design, which means that you can print the parts in different colors to achieve a multicolor finish using just your single extruder printer.
Inside the file, you’re in for a treat:

Inside the file, you’ll find:
✅ Multipart model
✅ Completed model



🚨🚨🚨🚨🚨🚨

This model is for personal use only, if you want to sell physical prints of my designs, or you want to support me
**PLEASE SUBSCRIBE TO MY THANGS MEMBERSHIP PLAN**: https://thangs.com/designer/pressprint/paid-3d-models

If you want to explore my complete model library, please visit my portfolio and take a tour: https://youness.ezzarqtouni.com/

PUZZLE BOX

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Hexglyph Print-in-place Puzzle Box

6-Alarm Puzzle Box

Giant Valentine's Day Heart Thump Puzzle Box (Easy)

BinaryBin – 16-Digit Binary Coded Lockable Container

PuzzleLock Box — Lock and Puzzle in a Box

Hand Grenade Cryptex — Configurable 4-digit puzzle container