How To Add More 3½ Bays

From: overclockers.com

First, kudos to my older brother Mike for showing me this cool add-on. Next, supplies you will need: Scissors , Plumber's Wrap (Can be found at Home Depot or Lowes) , Screws , Screwdriver
Now, start by cutting four short strips and two long strips of the Plumber's Wrap. Cut desired length depending on how many drives you want to add. In this article, we added two drives, so five holes on the two short strips and seven holes on the long strip. Add two more holes to the length to accommodate another drive, and so on. Detail...

How To Make A Fan Guard

From: overclockers.com
I will be showing you how to make a "Fan Guard" for protect your fingers by using only plastic and a super LED.
First, to begin you must prepare instrument and materials as show in table below. Then cut the plastic as your design and should fit with a fan. Next, super LED is added in side of the plastic. Detail...

Constructable CD Sculpture

At the invitation of Prof. Susan Gerofsky, I visited The University of British Columbia (UBC) as artist-in-residence for a week during January 2007. The agreed-upon project was for me to develop a mathematical sculpture that can be replicated in classrooms. I worked with Susan, student teachers in UBC's education program, and visiting students from Vancouver-area schools to test the ideas and write up a lesson plan. In addition I left one example on display, as a reference model Detail...

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VGA over Cat-5 ethernet cable

It's possible to send a VGA "video" signal down an ordinary Cat-5 ethernet cable. This is possible for two reasons: firstly, although VGA connectors have 15 (or 13) pins, only about 8 wires are actually necessary to send the VGA signal; and secondly, ethernet cable is twisted pair, and we can use the magic of twisted pair to push the analog VGA signal further than spec. The diagram above shows conversion from HD15 (VGA) to RJ45 (an ethernet socket). A similar adapter is used to convert back again. Connectors are shown from the solder side. This diagram assumes your Cat-5 cable is crimped in the standard way (not as a cross-over cable). Detail...

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Baybus

The idea here is to produce a small box which should alter the voltage of the fans with some switches. The fans are those that cause most of the noise in a computer, so decreasing their voltage causes a decrease in revolutions per minute, and therefore a reduction of noise. The efficiency is also decreased, but this is taken in consideration by allowing the user to switch between levels of voltage Detail...

LogoMouse

From metku.net
You all have seen these optical mouses with leds and stuff but there is still room for some improvement. Why not mod a mouse and add your own logo/image to it. Let see how you can do that
A standard Microsoft ps2 rodent was more trickier to open than I first thought. Two plastic "hooks" that hold the case together are marked with number 1. This hidden screw you have to remove first is marked with number 2. I removed it but didn't notice those hooks in time so I broke them. Sad. Well, the case still holds together with that screw so no harm done. Detail...

RS-232 Laser Transceiver

From: electronics-lab.com
Laser based projects used to be expensive, until the development of solid state lasers. This project is designed for the entry level laser experimenter. The circuit allows any two computers with serial (RS-232) communication capability to communicate over 200 meters using a laser beam. A low cost transmitter only circuit is also presented here for use in one way communication and other laser based projects. Link...