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Build Your Own 3d Printer Filament Factory (Filament Extruder)
Scientific Research High Altitude Balloon for Fun and Profit
Capacitive Fluid Level Sensor
How to get an unlimited supply of electronic components for under $10.
Automatic bike lights
How to use a Stepper Motor
Thermoforming 3D Printed PLA for Use in Prostethics
SmartMesh - Arduino and Android Controlled Pneumatic Facade
Plastic Bottle Mosquito Trap
Nitrogen gas generator
Building your own CNC router/milling machine
Poor man's 200 dollar plastic heat strip for pennies!
Raspberry Pi Water Cooler
The Allen Hydrautomat, a working paint tin model.
How To: Remove Wax Easily
Indoors Fractal HDTV Antenna
Another DIY Vacuum Former
How To Make Briquttes
Arduino-Pneumatic Flight Simulator
Make a UAV for research and photography
Make a poweful (green) railgun!
Radio Controlled Hovercraft.
How to make a magnetic stirrer that doesn't cost like a professional one
Phone Jack Thermometers
555 Crriter Repellent
How to make your own Metal Pulse Magnetizer
Intro to RFID
A Universal RFID Key
Sending Music through a Frequency-Modulated (FM) Infrared (IR) LED
SLAM ROD FIRE STARTER - IGNITION BY AIR!!
Making a Touch Sensitive On/Off Circuit with Bare Paint and a 555 Timer IC
Downloading NOAA satellite images cheaply and easily
My Space Balloon: Project Stratohab Success!! High School Student's Budget