Undead_Engineering

Easy Fix for Broken Laptop Fan

3.2K Views, 9 Favorites

Powerful Battery Fan

2.1K Views, 28 Favorites

Phone and Tablet Battery Charger (cheap and Rechargeable)

1.6K Views, 13 Favorites

Cheap Mobile Battery Wall Outlet

3.8K Views, 29 Favorites

Fast Electric Circle Car for Cheap

1.0K Views, 13 Favorites

Cheap Electric Boat

1.9K Views, 14 Favorites

Free Powerful LED Flashlight

1.6K Views, 15 Favorites

Free Rechargeable Flashlight From LEDs and Lithium Battery

2.6K Views, 27 Favorites

Portable Arduino Prototyping Box

3.2K Views, 14 Favorites

Cheap Electric Motor Speed Control ($10, 4HP, Arduino, PWM)

9.8K Views, 70 Favorites

Indoor Electric Car (for Cheap Under $5)

9.8K Views, 144 Favorites

Big Lithium Ion Battery Pack Made From Used Laptop Batteries (190+ Watt Hours)

22K Views, 67 Favorites

Hurricane Survival With a Wind Turbine

2.0K Views, 13 Favorites

Free Propeller Bike Mod Update

4.3K Views, 10 Favorites

Free Electric Propeller Bike Mod

36K Views, 124 Favorites

Super Powerful Battery Ducted Fan

7.1K Views, 18 Favorites

Emergency Lamp for Less Than $1

1.3K Views, 12 Favorites

Small Wind Turbine With LED

10K Views, 51 Favorites

Free Drill Powered by a Laptop Battery

5.9K Views, 14 Favorites

Under $10 Solar Box Cooker

4.4K Views, 45 Favorites

Free Solar Box Cooker

9.5K Views, 18 Favorites

Free Whiteboard Fridge to Do List

2.0K Views, 9 Favorites

Free Battery Powered Fan With 20 Hour Life

12K Views, 61 Favorites

Free Lithium Ion Battery Pack

21K Views, 119 Favorites

40 Cent Razor Drawknife

6.0K Views, 62 Favorites