It takes a thief to make a thief. I "stole" two Weekend Projects from Makezine and combined them into one. The Sympathy Doll and the famous Joule Thief. (BTW-Is anyone else having Weekend Project withdrawal symptoms since Bre moved to Etsy? I'm having bedwetting symptoms.)
What's a Joule Thief? A Joule Thief is a simple circuit that uses the last amount of energy (a joule) in a used battery. In essence, it's a battery drainer. It's a great little project by itself.
I'd like to give a "shout out" to others that have I've stolen from, er I mean, have inspired me.
This is a pretty easy Instructable. If you ignore family and food, you can do this in one day. "Sorry, Daddy can't help you with that broken arm; he's trying to MAKE something. Go ask Mommy to set it for you."
You can put this project together with basic tools:
Embroidery Needle and Thread
Heat gun or matches
Solid Core Ferrite Suppressors - Mouser - PN 875-28B0500-100 - $0.18
26 awg wire - Frys - $2.99/roll
Transistor - Mouser - PN 610-2N3904 - $0.10
White LED 10,000 mcd - Frys - $3.49
Resistor 1/4 watt - Frys - $0.95 4 Pack
Conductive Fabric "Zelt" - Less EMF http://www.lessemf.com/fabric.html
Pieces of gray and pink felt - Michaels - $0.20/sheet
Black fleece - JoAnne Fabric - $4.99/yd.
Googlee eyes - Michaels - $0.89/Pack
2 small strong magnets
Foam rubber or other stuffing
Box of Cap'n Crunch
I swear I put this project together before the "Get the LED Out Contest." It just happens to be great timing because I need to win that t-shirt. I'm actually writing this topless and it's really cold where I'm at. So please leave me a good rating.
Step 1: Design a Sympathy Doll
Pencil out a pattern on paper. I designed a cat burglar because they like to steal jewels.
Get it? Jewels/joules (same pronunciation)? No? Forget it.
Whatever you design, make sure it's large enough to fit all the electrical components. The photo shows the pattern with all the electronic guts laid out. Your design should also be wide enough so that the paws and arms will wrap around a biggie D size battery.
The silver "paws" are conductive fabric called "Zelt." Zelt is great stuff. I use Zelt for many of my projects. Zelt feels good against the skin. I use Zelt as a toga when I go to Tesla coil parties.