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,
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”
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
There are two notes below that describe the fantastic video demonstration of the MIT Autonomous Airplane Indoor Flying test. Keep your eye on this page for more info in the future. "In these flight tests, a fixed vertical landing platform was designed and attached to a concrete pole in the middle of the RAVEN flight space to allow the fixed-wing aircraft to land and perch on the pole. This
How can you make coffee more interesting? You could print fancy designs on it. I am not sure how practical this is but WOW does it ever look cool! Many people like to have a cup of coffee in the morning while they read their newspaper and play bingo games online. Latte Art makes your morning coffee more fun than any game you can imagine. "Long time ago, I
Looking to try your hand at reading some mag stripe cards? This Card Reader Project has some great information and some code to get you started. "The Magstripe (Track 2) Reader project can be used to view numerics stored a magnetic data card. Although there is no writeback ability, the device is very useful as a card debugger. The treatise will use an LCD character display to relay
Here is a simple hack to convert a simple (cheap) module into your very own opto-isolated TTL to 110 VAC power source. Since it is isolated you can control it with low voltage circuitry and have no worry about electrocution. The other concern when you control high voltage with a low voltage control circuit (a computer parallel port for example) is that a failure could cause high voltage
