[Aleksander Zawada] makes vacuum tubes in his home. One of the most challenging builds he has taken on is to produce a working Nixie tube. He describes the process in a PDF, covering his success and failure. It seems the hardest part is to get the tube filled with the proper gas, at the proper pressure, and firmly seal it. In the end he managed to make a tube with three digits (0, 1, and 2) that worked for about 700 hours before burning out.
[Aleksander] joins [Jeri Ellsworth] on the short list of hackers who can pull off extreme industrial manufacturing at home. Kudos.
[Jeri Ellsworth] made this silicon inverter at home, by hand. It took her two years to get the process figured out and achieve something we didn’t think was possible. The complexity of manufacture, and the wide range of tools and materials needed seem insurmountable but she did it anyway. Her home chip fab Flickr set is well commented and details her work area and part of the processing. If you’re hurting for more check out her 40 minute Metalab talk which we’ve embedded after the break.
If her name sounds familiar but you just can’t place it you may know her from The Fatman and Circuit Girl. We’ve also featured some of her hacks, such as her Pinball challenge against [Ben Heckendorn], and her giant Etch-a-Sketch.
Continue reading “Jeri makes integrated circuits”
Why settle for the standard home icon on your browser? If your home button brings you to hackaday.com, why not make the icon reflect that destination? This hack is quick and simple. We’ll take you through it using Firefox 3 and the default theme with standard sized icons. Continue reading “Firefox CSS hack: change navigation icons”
[Kenneth Maxon] is a wizard who only does things one way, beautifully. While out of the average hacker’s production capabilities, his injection molding machine is amazing to behold. The machine has all features a commercial model would. It heats and cools the mold, produces over a ton of pressure to inject plastic with, and ejects parts automatically to name a few.
[Josh] sent in a home automation project he did a little while ago. It has a total of eight switched outlets. The main focus of the project was WAP access for remote control from any cellphone. The control box is based on a design by [Ashley Roll] for controlling eight servos using a PIC microcontroller. A listener app written in Java monitors the control web page and sends signals to the board via serial port. He used opto-isolated 240V solid state relays for each of the outlets. All the pieces are available on the site and he might even do a custom control board design if there is enough interest.
Last week Sony launched the public beta of Home, their virtual world for the PlayStation 3. It wasn’t met with much fanfare and has proven to be quite buggy. Many were less than charmed by scarcity being ported to the virtual world. Others took it upon themselves to hack the service. Connections between the user’s home console and Sony’s server are unencrypted. You can sniff the requests and responses off the wire and modify them live. It seems you need the console to establish the initial connection, but after that you’re free to use builtin tools like Download.jsp, UploadFileServlet, and Delete.jsp to modify any file on the host server. You can also set up a proxy server to modify content, but that will only affect what your console sees.
In part 1 we showed you how to build your own prototype RGB keypad. Today we’ll show off some new ideas we worked on to create the project and turn it from prototype to fully functional battle station er door lock.
Continue reading “How-To: Make an RGB combination door lock (Part 2)”