
Tuesday, August 27, 2013
WidgetRunner Puts Dashboard Widgets on Your Desktop

Harry Potter Papercraft

The arm is moved using a lever in the back and the wand is lit up with a 3mm LED. As the lever is pushed in it strikes the inside surface closing the circuit, thus turning on the light. I used conductive fabric for the contact points of the switch and conductive thread running between the LED, switch and battery. Alternatively, you could use conductive paint, tape or regular wire. The template is available in the next step as a pdf file, print full size on 8 1/2 by 11 (Letter) card stock.

Scissors/utility knife Glue Tape Papercraft model pdf (see below) Cardstock and printer Electronics:
Mini BSG Colonial Viper Mk II Popsicle Stick Model
Only nine (9) major sub-assemblies (including the two tiny rear landing gear housing!) makes up this mini Battlestar Galactica Colonial Viper Mk II. This should should be an easy build even for novice hobbyists.
The Viper Mk II was the main fighter spacecraft used by the Colonial Defense Forces against the Cylons in the 2003 remake of Battlestar Galactica. A Mk I from the 1978 series should also make for an interesting one-day build.
The only major challenge in this project was in fabricating the top engine and engine exhaust nozzle. The engine exhaust nozzle should fit snuggly inside the shaped housing at the rear end of the top engine.
James - Your first Arduino Robot

James was made as part of a Robotics Class I teach to a few high school students.
I called him James in memory of my late Grandfather James Henry Edwards who passed away 14-3-2013. He loved teaching and helping kids and died doing what he loved, hopefully this James will carry on that legacy.

If you are looking to buy this Prototyping Shield search on ebay for “arduino prototype shield uno” and you should see it. Alternatively you can buy a similar looking one from Core Electronics: http://tinyurl.com/brxjx5h
How to create a simple rope dog toy


I also have ordered spools of rope from Koch on Amazon: http://amzn.to/15MFPY3
You'll want to get the right size rope for your dog. A 1/2"-3/4" rope would be suitable for a little dog, while 1.5" rope works for very large dogs.
Monday, August 26, 2013
how to revive a first generation Olympic 447 portable transistor radio
pic 2 is of the radio opened up. the radio runs off 9vdc. it has two battery connectors but both are wired in parallel. now is a good time to see if your radio works at all. do not exceed 9v input to the radio. you risk damaging some VERY hard to find transistors. this radio will power up with 6v-9v. you can use a regulated power supply or a 9v battery and alligator clips.
look at the old battery connectors coming out of the radio. on the connector at the end of the cable, the terminal at the very end (not where the wires come in to the connector) is the positive terminal. apply power, turn the radio on at full volume, and tune around. get anything? any sign of life is good. it's possible your radio may play loud, in that case back down on the volume control.
your radio should have a pictorial diagram inside like the one in pic 3. it may be of help here. on a humorous note, the pictorial diagram shows the transistors in transistor sockets. the actual production model just re-used the tube sockets.
are you getting lots of hash and noise but nothing intelligible? is the radio right next to a computer or lithium battery charger? those two things can generate plenty of RF noise on an AM radio. relocate the radio and try again or shut off the possible noise sources. try again.
get anything now? if your radio picks up anything, that's a good sign. tinny, weak, or distorted audio we can fix. if your radio is totally dead you may need to do some simple checks.
take a multimeter and check for continuity from the positive battery terminal to the metal radio chassis. the radio should be switched on for this test. like many early transistor radios, this one uses positive ground. you should have continuity. if you don't, you need to find out why.
look at the volume control. the power switch is built in. it's got two terminals grouped together. those are the power switch terminals. check for continuity here. you should have continuity when the radio is switched on. if you don't, your power switch is bad and that would cause a dead radio.
if you have a totally dead radio, there is still hope but you may want to consider the fact that your radio may have issues beyond the scope of this instructable.
next up, we get inside.
MixDrive: USB Cassette Tapes Made Easy

With the advent of digital music, it's all too easy just to send someone an iTunes gift card and song list. The physical aspect of the gift is lost, reduced to something that can't be seen or touched. As an expression of affection, I feel it's lacking.
I still want to make mixes for people. I love to give the gift of music. But I want it to be something they can hold, something real and tangible that they can take out and look at. A gift that has a physical presence. Thus, the MixDrive..

- a USB stick
- a cassette tape
- a craft knife
- a small screwdriver
- a permanent marker
- a tool for cutting the casing of the cassette (I will be using chisels- a rotary tool would be good for this step as well)
- electrical tape
- scissors
To Make A Label and Case Insert For Your MixDrive (Optional):
- High quality paper for your label and case insert (I am using some free samples of glossy photo paper that came with my last ink purchase.)
- a printer
- adhesive for paper/plastic bonding (I will be using rubber cement.)
- Creativity!
Now that we've assembled all the supplies we will need to make our MixDrives, let's get started, shall we?