Stop hanging your life on the floor! 🎒🚫

Tired of those flimsy, plastic bag hooks that snap the moment you hang a real backpack? I designed The Royal Hook for those who need strength, elegance, and reliability.

This isn't just a hook; it’s a high-performance mechanical accessory for your daily life. Whether you are in a classroom, a restaurant, or at your studio desk, this hook keeps your gear safe and off the ground.

Why it’s "Royal":
✅ Extreme Strength: Engineered with reinforced stress points to support heavy backpacks and professional bags. 🏋️‍♂️
✅ Foldable & Portable: A clever mechanical design that folds into itself, making it easy to toss in your pocket or bag. 📐
✅ Universal Grip: Designed to fit perfectly on most tables and desks with maximum stability.
✅ Elegant Design: A bold, royal aesthetic that looks like a piece of modern gear, not a cheap toy. 👑

Technical Note: After 4 iterations of prototyping and stress-testing, the tolerances are now perfect. It’s a smooth, satisfying mechanical movement that won’t let you down.

Stop compromising. Give your bag the throne it deserves! 👑🔥

The files are not permitted for commercial use. Anyone interested can contact me privately.

3D printing settings
The attached 3MF file is already perfectly set up with Orca slicer with all the parameters to guarantee your large regal hook has the right strength and lightness it needs

Foldable Bag Hanger – Heavy Duty Table Hook for Backpack & Purse

Foldable Hook.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)

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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.




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Foldable Bag Hanger – Heavy Duty Table Hook for Backpack & Purse

PuzzleLock Box — Lock and Puzzle in a Box