Archive for January, 2007

Whiteboard Whiteboard Interactions

Here are some of the messages that are passed back and forth between my roommate and I…

ASometimes we make up silly things… late at night…

Shaver Sometimes we borrow each others things…

weld And we get the better of each other with our antics…

piano Our true feelings for each other?

todo To do list…

mountain Sometimes we DON’T let each other borrow things…

Compact Flash Replacement

My laptop is a Sharp MM20, which I knew I was going to spraypaint eventually, I just needed a reason to. After about a year of wear and scratches from abuse, it was time.

I’m replacing the harddrive in my laptop with a 4GB flash card.
It should be faster:

/dev/sdb:
Timing cached reads: 3532 MB in 2.00 seconds = 1766.79 MB/sec
Timing buffered disk reads: 58 MB in 3.10 seconds = 18.69 MB/sec
root@kyle-desktop:~# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 3532 MB in 2.00 seconds = 1766.13 MB/sec
Timing buffered disk reads: 78 MB in 3.04 seconds = 25.67 MB/sec

Pros: Faster seeks and sustained I/O. Lifetime Warranty.
Cons: Expensive. 25% Disk Space. Bad blocks over time.

So lets do it! I started with instructions from this guy.

First step, disassembling the laptop:
Opened upAntennaDrive
You can see that this is not a normal size laptop hard drive. This is a 1.8″ drive. So I bought this card and a cheap laptop IDE to flash converter off of ebay. (Sorry I don’t have a picture.)

We used containers with numbers and a legend to keep track of small screws and parts. When we were done, these were left over:
Leftovers
(Don’t ask me whats in compartment 8, I really don’t know what it goes to. But there is the leftover drive and screws)

Second step, spray paint it! Oh, and don’t forget to put in the flash card when you put it back together.
Closed1Finished1
Can you spot the laptop?
Woods1Woods2

Of course, with only a 4GB drive, I will be running my favorite operating system of course, Ubuntu!

Screenshot

And the obligatory screen shot!

Want more? Click here to download every picture we took.
Closing thoughts:
I’m extremely impressed. The camo-finish is beautiful and feels great thanks to the clear coat. Nothing broke, and everything went back together correctly thanks to good documentation and pictures for reference. If you have any questions about what I did, post a comment and I’ll come back and answer them.

Next Piece: Armband

We were thinking it would be cool to have the LCD display be on the arm, instead of the side of the gun.

So we have modified roller-blading wrist-guards for the purpose:

Armband PiecesCompleted ArmbandWearing the Armband

Watch Karl Show It Off!

Karl’s Mom helped with the sewing. Next we’ll add buttons for mode and backlight. I think they will be very thin and unobtrusive.

Our First Real Gun

Here it is, the big milestone: our first real gun!

From this:
The beginning of the first gun

To this!

You can see how we have gutted an air-soft gun, and inserted our led’s and switches to turn it into a lasertag gun. All of our guns will be interchangeable as they will all have the same Cat-5 Pinout. Eventually we will have an array of guns and we can change their properties in software. (Reload times, shots per clip, damage per shot, etc..)