Capacitors are wonderful things - They allow the release of energy at tremendous rates allowing for endless entertainment with rail-guns, spark-gaps and all sorts of pulsed power applications. Batteries, specifically high power lithium variants, offer...
It's still very much a work in progress, but it does work fairly well as is.The final version will be stackable, so if you need, say, two different sizes of bolts and nuts in each bag you could stack four of them up it will not move on until all are...
Sound Dampening PanelsSound is an issue with any workshop, power tools are cool but make lots of noise. My workshop has the added benefits of being in a garage, close to neighbors and harboring a CNC table. My primary concerns are the air compressor,...
We all know that bees are under threat from modern farming practices, but did we know about the Asian hornet, slowly spreading north through the united states of Europe closer and closer to the Land of Dragons (where I live) ? The Asian hornet is a voracious...
Perhaps you've seen a few other electric-powered vehicles, so what makes the CitySpur different?1) Power. The CitySpur has almost 5 hp delivered by two brushless motors and has the highest horsepower to weight ratio on the market. What does this mean?...
How it works:Current 3d metal printers work by using a laser or an electron beam to melt layers of metal powder together:Image credit: http://en.wikipedia.org/wiki/Selective_laser_sinteringThis one works the same way, except it replaces the dangerous...
The two cool features in this project; maneuverable 3d viewing of the robot's vista and a bluetooth controller with wifi range. I am just tickled how this turned out. Perky is a robot head that can be transplanted onto different vehicles. Those...
A metronome is a device used in music to help musicians keep a consistent tempo or beat while playing or practicing. It produces a regular, steady sound, typically in the form of clicks or beats per minute (BPM), to aid musicians in maintaining...
The General IdeaI want a vacuum pump. Mainly so that I can aluminize my own mirrors. Yes I know you can send them off to a company and get it done for pretty cheap. But I want to do it myself, in my garage, and this being Hackaday I trust that you are...
MetaTrader 4 is a trading platform for trading on Forex. Also, it is ageat software for automated forex trading and building up a passive channel. Well, I am not going to describe the MetaTrader 4 application (or MetaTrader 5 – the...
I will examine several different methods to fabricate PCBs from Dupont Pyralux - a flexible PCB material consisting of a copper layer glued to a Polymide film backing. These experiments are performed on 1oz single-sided Pyralux purchased from Ada Fruit....
So if we’re going to design and build a tube headphone amplifier that will work reasonably well with a variety of models, what should we consider?Damping factorProperly loading the tubesSufficient listening levelsFrequency ResponseSimplicityDamping FactorDamping...
Getting the stock radio out was easy. I am not a total stranger to doing car audio installs so I figured this was a piece of cake. As it turns out not all cake is sweet nor easy to swallow. Think stale carob. I used to have a...
The Chain of CommandIn order to make the kindle interacts with your home automation system, you have to :guess what both globally and precisely user is going to doimagine a way to transmit user's precise choice to an underlying piece of softwaretrigger...
Conway's Game of LifeThis project implements well known Conway's Game of Life.Note that this implementation uses Periodic Boundary Conditions to simulate a field of an infinite size, i.e. each boundary is connected to the opposite boundary. This makes...