March 2008

Bicycle Rim Antenna

  There are all kinds of antenna designs floating around the net and many of them use found parts for their construction. I have never seen a Bicycle Rim Antenna before though! Alan Yates is the creative designer of this antenna. "Several months ago I was walking home from the post office, nearing my place I saw it was "clean-up week", the curb dotted with various piles of junk people

Plasma Tweeter - Audio with no Speaker

  Martin Grebe tipped us about this cool plasma tweeter in the comment section of this article. Timetec did a fantastic job on building this unit! His musical selection isn’t my favorite but the great operation sure makes up for that. "Now built the completed circuit on a single PCB. Made vertical electrode setup from tungsten carbide (bottom) + stainless steel (top). Reflector made from PVC pipe with rear mirror,

New Segway

  Here is a Segway with tires that are two feet wide! Cool hack that is sure to turn heads, but I still have a thing for the Segway Centaur (video below).  

PicOx - Open Source Motor Controller for Electric Bike

 Have a look at the construction details of this Open Source Electric Bike Motor Controller. There are good circuit construction details and diagrams on the creators site. More details are available on these pages: http://www.theworkshop.ca/energy/picox/2/picox2.htm http://www.theworkshop.ca/energy/picox/3/picox3.htm http://www.theworkshop.ca/energy/picox/4/picox4.htm "In brief the PicOx is a PicAxe 08M based digital Controller that performs an ADC of a Hall-effect throttle and an ADC of a Hall-based current sensor. These two parameters determine the “Mark”

Ball Throwing Machine that a Dog can load

  If you have a dog this Ball Throwing Machine could provide hours of fun for him when you are out. It looks overkill for what is needed (just the way we like it). "I built the ball machine because I thought my dog Jerry, might like it and that it would be something fun for me to build. So after two years of on and off work, with many

Name the Thing Contest - 43

  Congratulations to the last contest winner. The prize this week will help you use your computer and look stylish while you are doing it. (It’s a finger mouse) This contest will run for one week (March 22 – 28, 2008) . Ending time is based on central standard time. To enter, identify the item pictured above and give an example of what can be done with it. Please do

Custom Made Steel Pencil

If you are looking for a special steel pencil don’t bother looking for it at your local department store. For something this unique it needs to be custom made! This one for example was made by Nonentity from a piece of solid steel that was removed from an old copy machine. "I decided that my rotring 600 series drawing pencil was getting too scarce to replace if I lost it,