Capsule Vault - Combination Lock

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Capsule Vault - Combination Lock

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Print Profile(5)

All
A1
P1S
P1P
X1 Carbon
X1E
X1
A1 mini

0.2mm layer, 2 walls, 15% infill
0.2mm layer, 2 walls, 15% infill
Designer
10.4 h
6 plates
4.8(33)

No Spring, Manual Button Mechanism
No Spring, Manual Button Mechanism
Designer
13.3 h
5 plates

A1 Mini
A1 Mini
11.6 h
7 plates
4.7(3)

No AMS 0.2mm layer, 3 walls, 15% infill
No AMS 0.2mm layer, 3 walls, 15% infill
8 h
3 plates
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Open in Bambu Studio
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Released

Description

Capsule Vault - Combination Lock

The Capsule Vault is a compact and secure storage solution with a combination lock designed to complement the modular Travel Capsule, which is available in various sizes. It features a 4-digit combination lock mechanism with four numbered dials, offering 10,000 possible password combinations for enhanced security. The password can be fully customized by repositioning the outer dials during assembly, allowing for flexibility and personalization.

 

To unlock the vault, dial the correct combination, and the spring-loaded mechanism engages, allowing the cap to lock into the thread. This enables the thread to turn and the container to open. When the wrong code is dialed, the cap continues to slip, preventing the thread from engaging and keeping the container securely locked. To lock the vault, simply turn two of the dial rings in opposite directions, reactivating the locking mechanism.

 

Two options are available for the internal spring: a 3D-printed PLA spring or adapters for metal springs. Metal springs are recommended, as PLA springs will lose their elasticity after a short period of time due to constant compression (creep). The printed spring is intended solely as a temporary solution to get started quickly for testing and experimenting with the mechanism if metal springs are not immediately available.


For the prototype, I used metal springs sized 7.5 x 35.8 x 0.7 mm. Springs from Bambu Lab's Maker's Supply have also been tested and work well with this setup, particularly the 0.6 x 8 x 40 mm springs (BB017).

Video Tutorial


Assembly Instructions

  1. Assemble the Dial Rings
    Combine the outer and inner dial rings. The notch on the top side of the inner dial ring serves as an orientation marker, indicating the relevant number for the pin code.

     
  2. Attach the Core Component
    Place the "core" component, which has the lock pins, onto the bottom plate with the thread around it.

     
  3. Insert the Center Screw
    Pass the center screw through the bottom of the assembly.

     
  4. Install the Dial Rings
    Place the assembled dial rings onto the "core" component. The rings will only fit in one correct position. After placing all the dial rings, verify that your desired pin code is aligned. Here my pin is going to be “8392”.

     
  5. Insert the Spring (two Options)
    Insert the spring into the slot on the center screw. Ensure the side with the beveled edges is facing downwards.
     
    1.  PLA/PETG version (not recommended for permanent use)
      There are two different lengths of the PLA spring in my print profile. It seems the long version works better for most people.
    2. Metal spring (7.5mm x 35.8mm x 0.7 mm)
       


       

  6. Attach the Cap
    Place the cap on top of the assembly. It fits in two positions, so ensure the marking on the side of the cap aligns with your desired pin. When pushing down the cap, it will push out the center screw from the bottom. Hold the entire assembly in your hands during this step. If the assembly is lying on a flat surface, the screw on the bottom cannot be pushed out properly.



     

  7. Secure with the Screw
    Finally, screw in the center screw from the bottom to secure the entire assembly.
     

     

Problem Solving / FAQ

  • Problem: 
    • If turning the rotary dials feels stiff or won’t move at all
  • Solutions:
    • Make sure the inner dial is oriented correctly.
    • If necessary, apply a small amount of lubricant to the middle piece (the “core component”) to reduce friction.

 

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Bill of Materials

Maker’s Supply Kits and Parts
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Download BOM

Comment & Rating (110)

Please fill in your opinion
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I think I'm missing something - the whole thing is printed accurately and assembles fine as per the animation. I get that the thread freely rotates, thus stopping it from unscrewing when in the 'locked' state, but I can't quite work out how the combination is meant to 'lock out' the spinning of the threads so it can be unscrewed. Perhaps my PLA 'spring' isn't springy enough and it's just not engaging properly? A video demo would be amazingly appreciated.
The designer has replied
5
Reply
Yes please, I need a video too.. Im not sure but my container is not locked
0
Reply
Okay, I will make a video to demonstrate it :)
0
Reply
Replying to @_MMM_ :
I'm almost certain my issue is the spring isn't springing back enough - basically as soon as it's compressed, it's compressed. I'll try printing again with 100% infill and perhaps with PETG.
0
Reply
Great model. However the instructions could be improved. The animation does a great job explaining all the easy steps but glosses over some things that really need explanations. Like which way up the inner dials belong into the outer dials (barely visible in some blurry frames) or how to actually choose the combination
The designer has replied
3
Reply
yes it’s missing alot of steps. is there instructions somewhere?
0
Reply
Your are right. I will improve on that :)
0
Reply
I’ve updated the animation to include a zoomed-in section that clearly shows the assembly of the dials and the correct orientation of the inner dial. I hope this makes the process much clearer! Let me know if there’s anything else you think could be improved.
2
Reply
All is well, thank you for sharing the file I have printed the longer spring As soon as my proper springs arrive I will convert to a metal spring
The designer has replied
Show original
1
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Thank you for sharing that picture :)
0
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Boosted
Print Profile
0.2mm layer, 2 walls, 15% infill
Amazing design - works as intended. Thank you
The designer has replied
1
Reply
Thanks for sharing your make :)
0
Reply
Print Profile
0.2mm layer, 2 walls, 15% infill
Super Model
The designer has replied
1
Reply
Thanks for sharing a picture of your printed version :)
0
Reply
Print Profile
0.2mm layer, 2 walls, 15% infill
Nice print. Lock better works with silicone lube
1
Reply
Boosted
Print Profile
0.2mm layer, 2 walls, 15% infill
The designer has replied
1
Reply
Thanks for sharing that picture :)
0
Reply
What PLA is that?
0
Reply
Print Profile
0.2mm layer, 2 walls, 15% infill
This designer is top notch. He supports his design to the fullest. I strongly suggest getting the metal springs. The thing is sweet. !!!
1
Reply
Without AMS make.
1
Reply
Without AMS also good. Thanks!
The designer has replied
0
Reply
Nice! Thank you for showing that :)
1
Reply

License

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