How-to build your own CNC mill

C&C for the masses. I’ma build me one of these, in my copious free time.

cnc mill
Yes folks it’s true: You can build a computer controlled 3-axis circuit board mill from cutting boards, a pile of printer parts and a Dremel. My coworker [Will] has posted the third and final installment of his CNC machine build on Engadget. This project was launched when Will stumbled across plans for an incredibly elegant and cheap ($22~$30) 3-axis stepper motor controller that originally appeared in Nuts&Volts in 1994. It uses a discontinued UCN5804B chip, but he lists a source for them. Building the controller and scavenging stepper motors from old dot-matrix printers is covered in
Part 1. For the body of the machine Will chopped up a couple cheap 1/2” thick cutting boards from Sam’s Club. The polyethlene probably isn’t as good as say Delrin but it wins out for availability. Steel rod from the hardware store is used for the linear slides
Part 2 covers the constructions of the first axis (the table) which rides on inch long nuts on threaded rod.
Part 3 covers assembling the final two axes in the head and installing the Dremel’s flex head. Amazingly he nearly got the entire thing built in the span of two evenings.

Originally from Eyebeam reBlog by Eliot Phillips reBlogged by micah to tech hardware candc on Jul 12, 2006, 4:22PM

Compare and Contrast: Eco versus Stephenson on Operating Systems

In 1994, Umberto Eco wrote an essay in which he compared the Macintosh to the Catholic Church and DOS to the Protestants. “Indeed,” he says “the Macintosh is counter-reformist and has been influenced by the ratio studiorum of the Jesuits.” DOS, he says, is Calvinistic, as it “allows free interpretation of scripture, demands difficult personal decisions, imposes a subtle hermeneutics upon the user, and takes for granted the idea that not all can achieve salvation.” Eco knows his religions, but his interpretation of DOS as lying on the extreme end of the spectrum of reprogramability is fairly laughable to anyone who’s spent time around real operating systems. Five years later, Neal Stephenson wrote his seminal essay, ‘In the Beginning was the Command Line,’ tracking the rise of the Operating System as a saleable commodity, and providing a set of metaphors for various OS’s structured around cars and munitions, rather than religious movements. Stephenson grants that his essay is “more review than research paper,” but justifies this by noting that “ever since the Mac came out, our operating systems have been based on metaphors, and anything with metaphors in it is fair game as far as I’m concerned.”

These two are some of the most interesting historical thinkers of our age (IMHO), and to see them both addressing the same issue of contemporary culture in historical context but each from their own unique background perspective is fascinating. I’m not sure if Stephenson was aware of the, much shorter, Eco essay when he set out on ‘In the Beginning.’ It is easy to imagine that he was not, as it was published in Italian and as far as I know only provided in translation recently. Still, it is nice to imagine Neal and Umberto sitting down in a cafe and hashing through the issues interface metaphors and reformation politics.

XM Developing A Crank-Powered Satellite Radio

I love the hi/lo of a device you crank in order to receive a message from another device floating in space. More Gibson than Gibson.

eton_crank_radio.jpgAs part of XM Satellite Radio’s expanded EAS initiative, XM is working to develop a crank-powered satellite radio receiver that would allow listeners to receive signal during power outages. So during emergency situations where terrestrial radio networks are down and cell phone networks are rendered useless, you’ll be able to receive emergency notices without any power source. XM’s Emergency Alert Channel (XM 247) is received free-of-charge to any XM receiver. So even non-subscribers have the capability of getting timely updates in disaster situations. :: Via Hugg and Orbitcast

Originally from Treehugger reBlogged by micah on Jun 20, 2006, 12:01PM

Visual Wordnet

This looks fun.

Kyle Scholz has created a Visual Wordnet based on his Force Directed Graph engine written in JavaScript.

Force Directed Graphs are self-organizing, visually appealing tools for representing relational data. The look is organic, because algorithms simulate the way charged particles arrange in space. They work great in user interfaces because the user has access to data nodes while the graph is being organized.

Visual Wordnet

Originally from Ajaxian by Dion Almaer reBlogged by micah to ajax javascript graphs visualization on Jun 7, 2006, 7:42AM

Technorati testing microformats search and “Pingerati”

Tools to aggregate content published in a decentralized manner are king.

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Technorati Microformats SearchOver at the Technorati Weblog, Tantek Çelik has announced two new products, Microformats Search and Pingerati. In case you’re not familiar, microformats are small bits of XML that can be used to describe things like events, product reviews, or contacts in a way that’s easily readible by both humans and machines. Technorati’s microformats search, which is currently in the “technology preview” (i.e. beta) stage, lets you search for microformat-tagged information posted to any of the millions of blogs Technorati indexes. Pingerati is a new site that you can “ping” to get your microformats indexed by Technorati’s microformats search, as well as a service for developers that can send microformats to other sites. For example, if you ran a calendar site, Pingerati could forward all of the microformatted events that it receives to your site, kind of like a Ping-o-Matic for microformats.

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Originally from Download Squad by Jordan Running reBlogged by micah to search technorati microformats on Jun 1, 2006, 9:20AM

Red Hat ships open source MySpace++ clone

Red Hat is looking at Social Networking as desktop environment level software, which is interesting. I’m not that excited about that part, though. This also involves a Java/Hibernate/JBoss Open Source social networking server, which is meant to be extesnible and horizontally scalable and/or clusterable. This could be an interesting platform for neat little bits of social networking functionality which may not have the pull to create a critical mass community on their own.

Cory Doctorow:
Red Hat has developed a new MySpace like site called Mugshot — but it’s open source. I saw a short demo of Mugshot this morning at the Red Hat Summit in Nashville and it was pretty hot; they nicked the best stuff out of all the social networking sites and put them together in an open codebase.

The Mugshot client application is built with a special cross-platform code library developed in C with GLib and GObject. For network communication, Mugshot uses the open XMPP protocol also used by Jabber and Google Talk. The current version of Mugshot is built with Loudmouth, a GLib-based XMPP implementation developed by Imendio. The Linux version of the Mugshot client user interface is built with GTK and uses GConf for storing configuration data, which means it is closely aligned with the GNOME desktop environment. The Linux version uses D-Bus for interprocess communication, and will provide Firefox integration.

Link

(Thanks, Segphault!)

Originally from Boing Boing by mark@boingboing.net reBlogged by micah to social_networks work open_source on May 31, 2006, 4:44PM

Reblog 2.0 Beta 1 released

It took a little bit of poking around in the forum archives, and finally setting REBLOG_REFEED_ROOT_PATH in my config.xml, but my refeed install now seems to be working.

A fresh update to Reblog 2.0 has been released. Be first on your block to install it from http://reblog.org/#download.

This release includes a raft of enhancements, including better documentation for plug-in developers, slightly modified tag behavior that makes it easier to navigate your extensiv feed collection, experimental plug-ins for automatically publishing entries to WordPress, TypePad, Blogger and Del.icio.us accounts, and minor usability improvements too numerous to mention.

This BETA version has been extensively tested, and is recommended for most users. (1 comments)

Originally from SourceForge.net: SF.net Project News: reblog (including full news text) by migurski@users.sourceforge.net (Michal Migurski) reBlogged by micah to reblog php software on Feb 8, 2006, 10:20AM