Small Form Factor Case Mod

I wanted to build a custom firewall/router PC. Something small and compact, and which would use up some of my old computer parts.

Let's see what we have to work with?



What a ridiculously bulbous case! No wonder Packard-Bell went out of business.

Ah, that's better: The metal part of the case isn't too bad. We can work with this!

Drives? Who needs 'em! With the drive bay cut off, I shortened the case by a third. Then I used new rivets to attach the old top at the new height. Very clean - looks almost stock.

Unfortunately, the side panel now doesn't fit.

Mr. Side Panel, meet Mr. Angle Grinder.

I knew I'd never be able to cut a perfect edge with the grinder, so I riveted aluminium bar stock to make a skirt to stiffen the panel and mask the imperfection. If you can't make it, fake it!

Now I just need a face plate.

Look! A perfect fit - other than being ginormously tall. I really like the styling on this face plate better though.

We'll just cut it in half too. Uh oh... I didn't account for that big hole on the top of faceplate after it's cut.

What better way to fix the top of the faceplate than with the, er, top? The steel files in the background: I used those to trim the cuts so they'd glue together flush. I have mad skills with files. You can see here there's still going to be a seam no matter what I do.

Time to pull a design trick with the magician's old standby: indirection! Since I can't make the seam impossible to notice, I'll do the opposite and call attention to the area with a little decoration. Who knew strap iron could be so appealing? Earl Martin calls my style "industrial art deco," which I think has a nice ring to it.

Here's how I laid the parts out to fit them in such a small space.

The finished case mod in all it's glory, sitting as the capstone on my pyramid of computers.

Slashdot Bingo

How to play: Whenever someone invokes one of these topics in the comments on Slashdot, place a token on the corresponding square! Stack two tokens if the subject of the reference has nothing at all to do with the subject of the article. Five in a row and you win!

Remember to shout "Bingo!"

Why Isn't There a 'Presentation Mode?'

After so many years of Power Point presentations and public screens controlled by computers, it is a mystery to me why there still is no such thing as a "presentation mode." You ought to be able to tell the operating system, "No matter what happens, don't bother me. Don't display any message boxes, don't put anything on top of the current application, and don't steal the foreground focus."

It's a big problem when a Windows machine is embedded in an outdoor video display. It's set up to give the impression that it works seamlessly, like a TV. Then a software glitch happens and Windows shows its ugly face. Like this:

http://thedailywtf.com/Articles/Calculatorating-in-Las-Vegas.aspx

You would think that if the operating system cannot be counted on to not interrupt you, presentation software might at least try to give the illusion that the only thing going on is the content of the presentation. Bah! Some of the worst offenders are applications interrupting themselves with update requests. I can't count how many times I've seen a professor try to begin a slide presentation from a PDF file when his slides are covered up with this obscenity:


How come Adobe can't figure out how worthless this dialog is? The person who programmed it seems to think that the user is going to say, "Oh, a dialog box. I love dialog boxes. Let's see what this one says..." And then they think the user is going to carefully read it and consider all the choices.

F**k no, man! Here's what really happens:

User: "OMG! WTF! Did I break something? Where'd this error message come from? Where's my presentation? Update who, what? No! Cancel! Go away!"

Anytime a program shows a dialog message, I think, "ah, this application was programmed by idiots." They're idiots because they don't understand two essential facts:

1. Users do not read message boxes. Ever. Seriously. I'm a computer geek, and I don't read the damn things.

2. The mere fact you're popping up a dialog box carries an unintentional message by itself. Whether you mean to or not, you will lead the user to believe he did something wrong. That message carries the same weight no matter how friendly you make the words inside the box. See rule #1.

Before I go too far on this tangent, my point is that most interruptions are unnecessary. (Adobe, if you need the updates, get them automatically, and if you don't need them, don't ask!) Of the questions that are necessary to ask, well then you're just screwed, because nobody will read it.

So why isn't there a Presentation mode? There are times when an interruption is not just annoying, it's completely unacceptable. How about no interruptions whenever an application is running full screen mode? Or give us a key combination, or a taskbar shortcut, to turn off interruptions? Why not?

I Don't Do House Calls

I wish I could help, but I have to tell you up front that it's unlikely I'll have the time, sorry. With the utmost respect and kindness, I must demur that if I did have some free time, I wouldn't spend it on a service call.

I apologize for this drawn-out "no", but you have opened up a subject which has a long and ghastly history for me. I used to help friends & family with their computers at home, and after much work and frustration I decided it is not something I'm willing to do anymore. I'm sure you would be willing to pay a reasonable amount, but the trouble is the reasonable amount to charge for such a service doesn't come close to the time and stress involved.

I gently suggest that if you knew what you were asking for, you would not ask: the job is akin to separating all the white and black granules out of a pepper shaker into equal piles with tweezers and a magnifying glass. It will require the utmost concentration, but teach me nothing.

I understand the plight you are in, because computers rarely work right, and it is difficult to find someone willing and able to look at them for you. I feel the utmost sympathy for you and the millions of other people like you who have trouble with them; clearly things need to improve. If I am ever in a position to effect a change, I promise I will do what I can to fix those design flaws that cause you so much grief, and try to bridge the disconnect between computers and ordinary people.

But just because I've worked hard to become proficient with computers, doesn't mean I have to feel obligated to do additional work just because I have the ability. I may have the ability, but if I answered every request like this that I get - and I can't walk down the street without being hounded by requests for computer help - then I would never do anything else.

I'll tell you what I am willing to do for you. Send me an email, and describe your problem. If it is something I can advise you on, I will give you all the advice I can - for free - when I have time. Just don't ask for house calls.

Pro Tip: Setting Your Clock

User interfaces of clock radios are so bad, I'll do anything to avoid interacting with them.

Here's one way to avoid having to figure out how to set your clock: if you ever have to unplug your clock to move it, wait until midnight. That way when the clock flashes "12:00 a.m." after you plug it back in, it will already be the right time!

Now I just have to wait until 7 o'clock tomorrow morning to set the alarm...

A Curiously Chocolate Radio

I've been saving Altoids tins for years. They're full of project possibilities: how much electronics could you cram into one? What neat things will people see when they peek inside?

From the outside this looks like an ordinary Altoids tin. But what's under the cover?

Why, it's a shiny pocket radio!

I got the circuit board out of a cheap FM radio, but I added the batteries and speaker. (The original radio only had head phones.) It turned out to be very difficult to get the antenna to work right. The original radio used the head phones to double as a loop antenna, but the speaker I replaced them with doesn't have long enough wires and wouldn't get any reception with the metal tin surrounding it. I solved it by running one leg of the audio out the back as an antenna wire, and I grounded the other side of the audio to the metal case.

Now the radio gets better reception than it did even before I hacked it!

The chocolate brown theme of the tin reminded me of old wooden cabinet phonographs, so I thought it would be neat to make the radio so that you prop the lid open to use it, as if it were from that era.

The speaker is held to the lid with foam tape, which keeps it from buzzing. The circuit board is held on one side with foam tape and screws on the other side, and the batteries are in a Radio Shack AAA battery holder, also secured with foam tape. I used 190 proof Everclear to pre-clean the inside of the tin, so the foam tape would stick tight.

I'm pleased with how this project turned out. It's one of the few projects I've actually seen through to completion in years - a testament to the wisdom of choosing a simple project. And it's something I will actually use!

What Am I Doing Here?

It's been another crazy semester, and I've no doubt lost my readers (all five of you) by not posting in so long. I've been suffering an existential crisis as to just what my blog is really all about.

I started blogging with the intention of writing about the business of software - and I will do so still from time to time - but it has been so long since my employment has dealt directly with coding that I feel I can no longer speak of it as an expert. When you're away from the front lines of software development, your memory of it becomes stale too quickly.

So I have to ask myself, who am I writing for and what would those people want to read? I will admit that I actually am writing for myself, but I do so with the suspicion that what I want to write, someone else may want to read.

For one thing, I think I will move most of my project pages off Google Pages, and turn them into blog posts from now on. Since Google has decided not to continue working on the Google Pages software, I don't know what will become of my website. Blogspot, on the other hand, has continued to improve, and I've learned how to add images to my posts.

I found that the most anecdotal narrative I've written yet, "Looting CompUSA", is also the one that rates highest on a Google search (indicating popularity). Clearly the personal touch does better than an intellectual essay.

One area that I've long neglected on this blog is my personal life. No more! My fiancee has asked why I don't talk about her on my blog, so let me start the new direction of my blog by announcing that I'm super excited because we just got our honeymoon trip booked!