Sunday, October 30, 2005

my speakers are done!!!










alrighty folks, the moment you ve been waiting for. my speakers are done. yep thats right, finally done. they are 27'' high and the front is 18'' wide. the handles are enclosed and airtight, and the entire thing was entirly designd by me. the crossover is a 12 uf 100 volt non-polarized capasitor in line with the tweeter, with a resistor across the terminals because it is a piezo tweter and is viewed by the circuit as a capasitor. there is a 5-amp 250-volt fuse in line with everything, and the inputs are either 1/4 inch jack, banana plug, or bare wire. i added the 1/4 inch jack to the plug, as you can see in the pictures. the box is stuffed with cotton stuffing to reduce echoing within the box. the corners all have hard plastic corners, and there are feet on the bottom. the grill and evrything is on and works quite well. now, about the sound. they sound really good, very rich and full base with clear uppers from thee tweeter. they are also really loud. with the little amp you see in the pictures you can pump out enough sound to hear it several blocks away while playing halloween music, but it stays clear with very little distortion, and any that is heard is probibly caused by the amp. thats about all i got for ya now, im really excited that they're done.

Sunday, October 23, 2005


this is the awesome float my friends and i made for homecomming. all told, it took roughly 14 man-hours to build, spread over 3 days and 3 people. note me, the dude in the awesome hat, darren, all the way on the left, rickey with his back to us, and dan carp, the other dude.

Thursday, October 20, 2005

current stuff

alrighty, time for a post about what im up to. first, in case you didnt kow, i am building a pair of speakers of compleetly my own design, that are similar to http://www.americanmusical.com/images/d/p25797d.jpg, with a 12 inch woofer, 7x3 inch horn tweeter and trapazoidal carpeted box. the crossover is all soldered, everything fits, all the holes are cut, everything has been put together and carpeted, all that is left is to carpet the bottom of one of them and glue the edges, attach the corners and screw in the speakers. I have probibly spent over 30 hrs designing, makeing, ordering the parts for, designing the crossover, etc for this speaker and im really excited that its all comming together. I am building it in wood tech.

My second projct is a launch box for model rockets for physics. our project is to design a rocket that goes up to a certain feet up and is in the air a certain length of time with a payload of an egg, and i am designing and building the launch box. It is has 4 chanels in parallel that can be launched individually or simultaniously, i ahve 2 battery bankd for a test circuit to check that the llines are attachesd well, i have 2 6 volt lantern batteries powering the launch circuit, with a master keyswitch and redundent safety backup on that. all the wires leading to the launch pad are just short wires (3 inches) with alligator clops on the end to attach long wires to lead to the pad. There is a voltmeter to est the main battery bank, led's around that illiminating that, several other led things, etc. it is all in a briefcase thing made of wood and painted black that is approx 3'' deep with a 2'' lid, and 10 x 14 top-down. there are led status lights for just about everything. according to those who have seen it, the wiring diagram looks like a mess of spaghetti.

other projects on the drawing board are a dj box that is essentially a cube where the sides and front fold out to make a shield like thing, and the inside holds light panels, amplifiers, mixers, ipods, comuter, etc. also in the works is a dj light stand for my various things. i have a strobe light, fog machine, lazer light, moonlight, spotlight for disco ball, etc that would go on it.

i am considering painting my ipod, on the inside, much th way this guy did with his mac laptop. http://geektechnique.org/index.php?id=203. feedback on this???