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DIY AlUMINUM LEGO BLOCKS
"The conversion to remember roughly is 1 inch is 25.4mm and 39.37 inches is 1 metre.There is no roughly; 1 inch = 25.4 mm exactly. Every conversion can be made with this simple equation as a base.
LED MAGNET BOX (Light)
Building My Own Butcher Block Kitchen Island
How to Burn & Stain Wood Aka Shou Sugi Ban
Maze Game (Arduino Mega + Leds)
How to Create a Cryptic Egg Hunt for Grown-up Treasure Hunting Fun
Cardboard Cryptex Vault
How to Make a Cryptex
Matchsticks Cube (no Glue)
Three Dial Geared Puzzle Box [gearbox]
How to Install Rollertrol Blinds With Ikea Shades and Setup With Home Automation Systems
EAL - Arduino Laser Harp
RGB Human Circuit
That looks awesome, I would love to try it but I think you set the bar to high now...
Iron Throne Phone Charger
Secret Candlestick Switch
Modern LED Desk Lamp...Powered by 5V USB
How I Make Cool Metal Inlays
Make Your Own Thermocolor (Color-Change) Paint!
Wooden Natural Edge Shelf
Cylindrical Mirror Art
Infinity Mirror Table
How to make an infinity mirror box
Infinity Mirror Table - the easy version
$2 Pop Up Woodworking Bench Dogs
Wooden Bar Combination Lock
LASER Maze 2012 - Halloween Haunted House
Frameless Laser Harp
Electronic Laser Harp - Sensor Edition
Easy and cheap Laser Harp
13 Note MIDI Laser Harp
Arduino Laser Harp
Quick Arduino MIDI Laser Harp
What did you use to cover the nail heads?
DIY Faux Fireplace with Hidden Storage
A Practical Guide to FDM 3D Printing Gears
Make a Wooden Ring With a Drill Press
I love the look of wood anything, so I think this is a great Inst'l. Wish I had found this a month ago, as my wife and I just had our 5th anniversary (Wooden Anniversary for those who don't know) and I was thinking about a wooden ring as a gift, but never got around to making one.
LED RGB Light Painting Light Spinner
Altoids Flashlight - or glowing treasure chest!
Wooden Centrifugal Puzzle
Secret Hole in the Wall
[KeyDuino] NFC lock GIFT box
Night Stand with Locking Secret Hidden Drawer
Cryptex type_c. Flash drive with secret mechanical lock
Candy Vault - wood box with secret mechanical lock
the LockClip (the money clip with lock, aka the FlatSafe)
Wooden 6 Wheel Combination Lock Box
Use a DIY Pressure Plate Switch to Automate Your Haunted House
The Enigma Switch Box
The Mad Wrapper's Lenticular - Gift Wrapping the Hard Way
Ultimate Lego Puzzle Box
Lego Puzzle Box
Lego Box Puzzle
Interactive LED Puzzle Lamp
Layerd Shadow Puzzle: the Cave
How to Make a Wooden Sliding Puzzle
Lego Stacked Sticks Interlocking Puzzle
Wooden Puzzle Lock For Secret Door
Sliding Puzzle Secret Compartment Table
It could be done with some magnetic reed switches or RFID readers but you would need a power supply.
3D Printed Electronic Puzzle Box
How to make Lego Puzzle Box No. 5; Diamonds!
How to Make a Gravity Puzzle (Brain Game)
Puzzle Box - With Changeable Combination
My first puzzle box
Did you ever post a video of your puzzle cube?
Puzzle Alarm Clock
The Enigma Puzzle Box
I was about to say the same thing, but I liked the burning one; I never thought of that one :)
Warping infinity mirror
Black hole table
Arduino Passcode Lock
Easy LCD display With Arduino