The Enigma Puzzle Box

52,786

291

34

<-----UPDATED 2/3/12----->

I now have added a locking device in the form of a solenoid. When the amber LED lights up, the solenoid pulls in its plunger from the "lock" (a piece of MDF with a hole in it) and the box opens. I have updated the images to show this change.

So first off I apologize for not making a formal instructable. When I started this project all I wanted to do was jump right in and get it done. If you have any questions regarding the box's construction, coin slot construction, or circuit design, please leave a comment and I'll try to assist you as much as possible. Also keep in mind the construction of the coin slot is not necessary, you can remove it if you don't want to make it. Also I suggest you make the box, drill the holes, stain (not really needed, but its a nice touch), then solder in the electronics. Trust me, it will take longer but its worth it. Speaking of taking a long time, don not rush this project, take your time.

Materials Needed:
- 1 Rotary Switch.
- 16 SPST Toggle Switches.
- 1 Power Switch (also SPDT, but anything works).
- 1 Green LED 1.5vDC preferred.
- 6 VDC Solenoid.
- 1 Resistor 100 ohms +/-5% (Black, Brown, Black, Gold)*
    *The resistor was 15 ohms, but I changed it so now the LED's won't burn out. 
- 1 Amber (yellow) LED 1.5vDC preferred.
- 1 Battery Pack for 4 AA Batteries.
- 1 Box

Misc:
- Plexiglass or other material to make coin slot.
- Stain
- MDF 1/8 for lock latch.

The "codes" are as follows (refer to circuit diagram):

Puzzle Setting 1 (Yellow Line): B1, D2, A3, A4.
Puzzle Setting 2 (Blue Line): A1, B2, D3, D4.
Puzzle Setting 3 (Orange Line): D1, C2, C3, B4.
Puzzle Setting 4 (Green Line): C1, A2, B3, C4.

Once all the correct switches have been flipped, the amber (yellow) LED will turn on.

Thanks for taking the time to read this instructable, all the best in future projects!
- TXTCLA55

http://www.youtube.com/watch?v=Zn3AT1inbVE

http://www.youtube.com/watch?v=trB55p9vwNc

Supplies:

Share

Recommendations

  • IoT Challenge

    IoT Challenge
  • Woodworking Contest

    Woodworking Contest
  • Classroom Science Contest

    Classroom Science Contest

34 Discussions

0
None
cdh89

2 years ago

Would you be willing to make one for me? If so what's your cost?

0
None
LaurenLaLagarrenmelton

Reply 2 years ago

Just install two of the stiches upside down on the box. That way when they are all switched "on", those two switches would actually look switched on, but they would be switched off.

0
None
TXTCLA55garrenmelton

Reply 7 years ago on Introduction

Well I used the coin slot as a means of needing a certain coin to turn on the power.However I discovered that this can be by-passed quite easily. Your next best option would to use a key switch. Unfortunately, the only real way to ensure a secure locking box would be with a micro controller. Hope this helped.

0
None
JoshG65

3 years ago

Can someone offer me some assistance on the wiring of this box? I am having a little trouble. Please email me @ joshgillettenet@gmail.com and I can send pics of what I've got and what it is or isn't doing. Maybe I'm just having trouble with the wiring diagram but it is frustrating me. :(

0
None
JoshG37

3 years ago

What are the specs for the rotary switch. they are all so confusing. how many pole, how many positions, how many pins?

0
None
lagartonverde

4 years ago

Where can i buy it!!! please!

0
None
Doctor-X17

4 years ago on Introduction

Looks nice. Maybe not a real security solution, but it's certainly a cool gift or conversation starter.

0
None
dmers97

4 years ago on Introduction

how does the key slot work? does it hit a switchor just electrically connect everything?

0
None
merlin867

5 years ago on Introduction

I will try soon. But onw question is on my mind. What kind of solenoid did you use? Push, Pull, both? How did you get it lock after powering off?

Sorry for my english, i'm french!

0
None
djsfantasi

5 years ago on Introduction

Another idea is to use SPDT switches instead. Then for each possibility, some switches need to be down and others up to open the box.

0
None
kchao35

5 years ago on Introduction

How much energy/voltage is needed to run this box? Considering using a solar panel instead of batteries.

1 reply
0
None
TXTCLA55kchao35

Reply 5 years ago on Introduction

It really depends on what voltage the solenoid is. 6V is the standard from what I saw, not sure if you can find something lower than that. A better option would be to find a (or some) solar panels that can put out 9V.

0
None
RolfFishMan

6 years ago on Introduction

If I would switch every one of them, wouldn't the box just open?

0
None
sony52sony52

Reply 6 years ago on Introduction

Also would this be a good substitute?
http://www.ebay.co.uk/itm/3-Pole-4-Position-Rotary-Switch-Non-Shorting-b-2pcs-/261117841067?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item3ccbd60eab