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invention

Top Secret Safe

by monty_littleBits

Published on August 2, 2016

Keep prying eyes from your prized possesions with a safe that's hidden in plain sight! This trigger-activated box opens when the right book is pulled.

Duration: 40 minutes (minimum)

How To Make It

STEP 1 :

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BUILD YOUR CIRCUIT.

STEP 2 :

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PRESS THE SERVO HUB ONTO THE SERVO AND ADJUST THE SERVO MODE TO TURN.

STEP 3 :

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SLIDE SERVO INTO THE SERVO MOUNT AND SCREW IN.
  • Only 1 screw needed

STEP 4 :

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PRESS YOUR CIRCUIT AND SERVO MOUNT ONTO THE MOUNTING BOARD. Check out mounting board tips & tricks here.

STEP 5 :

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WITH POWER ON, CONNECT THE MECHANICAL ARM TO THE SERVO HUB PARALLEL TO THE MOUNTING BOARD, AS SHOWN.
  • Use a Phillips-head screwdriver

STEP 6 :

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ON THE MAKEY MAKEY BIT, CLIP ONE ALLIGATOR CLIP TO THE SPACE/CLICK PAD AND THE OTHER TO THE EARTH PAD.

STEP 7 :

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TEST YOUR CIRCUIT! TOUCHING THE ENDS OF BOTH ALLIGATOR CLIPS SHOULD CAUSE THE SERVO TO SWING TO THE RIGHT.
  • Touch both alligator clips at the same time

STEP 8 :

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ATTACH YOUR CIRCUIT TO AN OPEN BOX.
  • Use tape or rubber bands to secure your circuit to the box.

STEP 9 :

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ATTACH A PIECE OF ART TO THE MECHANICAL ARM.
  • Use tape.

STEP 10 :

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BUILD YOUR SECRET SWITCH. ATTACH A PIECE OF FOIL TO THE BOTTOM OF A BOOK, AND ANOTHER PIECE TO YOUR SHELF SURFACE.
  • Use masking tape to attach the foil.

STEP 11 :

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ATTACH THE ALLIGATOR CLIPS AS INDICATED.

STEP 12 :

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HIDE YOUR THINGS! PULL THE BOOK TO ACTIVATE THE SECRET SWITCH AND REVEAL YOUR SECRET STASH.
  • PRO TIP: Secure the compartment to the shelf with tape.

STEP 13 : PLAY!

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KEEP IT SECRET! KEEP IT SAFE! Can anyone crack your Top-Secret Safe?

STEP 14 : HOW IT WORKS

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  • The POWER Bit provides electricity to the circuit.
  • The MAKEY MAKEY Bit triggers an ON signal when the space/click pad and earth pad are connected. This happens when the secret switch is pulled and the foil on the book touches the foil on the shelf, allowing electricity to flow through the circuit.
  • When the SERVO receives the signal from the Makey Makey Bit, the mechanical arm turns to open the secret compartment.

STEP 15 : REMIX

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TRY SOME OF THESE IDEAS TO CUSTOMIZE YOUR INVENTION.

  • MAKE DIFFERENT SWITCHES TO OPEN YOUR COMPARTMENT. Can you open the compartment with different objects around your room? Try putting a can on a coaster!
  • ADD EXTRA SECURITY TO YOUR SECRET COMPARTMENT. Use the buzzer to alert you when others try opening the compartment!
  • WHERE ELSE CAN YOU USE THIS CIRCUIT? Try hiding it in the closet, or using it to open your fort.

STEP 16 : SHARE

CAN YOUR FRIENDS FIND THE BOX? Make a treasure hunt out of it and post the adventure online!

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