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Archive: DIY Projects
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July 9, 2007
Grow crystals in a cup
From Pop Sci, Theodore Gray on making bizmuth crystals -
When I was a teenager melting elements in my parents' basement, I noticed that cooling lead would sometimes form a snowflake-like pattern on its surface. Snowflakes are crystals, and I had never thought of metal as crystalline. Metals are shiny, malleable things. You can't bend a crystal into a coat hanger!Grow Crystals in a Cup Melting and cooling bismuth reveals the secret crystalline life of metal - [via] Link.But most metals are crystalline, at least at the microscopic level. For example, iron and its alloys consist of a mixture of microscopic crystal zones interlocked with one another. The difference in properties between cast iron and high-carbon tool steel or the nickel-iron superalloys used in turbine blades are largely the result of the various sizes and shapes of the constituent microscopic crystals and what's in the space between them. Quenching (fast cooling) and annealing (slow cooling) are nothing more than ways of controlling the size of the metal's crystals. In general, the slower a material is cooled, the larger its crystals can grow.
Posted by Phillip Torrone |
Jul 9, 2007 02:00 AM
DIY Projects, Science |
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July 8, 2007
Barebones Arduino on a breadboard
Here is a truly barebones Arduino setup. Just the Arduino chip and a few support parts. This has to be close to the simplest and lowest cost way to play with microcontrollers. The only special parts are the resonator and the Mega168 programmed with the Arduino boot loader. Everything else you should already have as an electronics hobbyist.
Ardunio Breadboard - [Via] Link
Related:
- HOW TO - Arduino breadboard shield - $10 & 10 mins - Link
- Arduino ProtoShield assembly + use - Link
- HOW TO - Control your Mac from Arduino, the easy way - Link
- Arduino variant - Bare-Bones Board - Link
Posted by Gareth Branwyn |
Jul 8, 2007 12:18 AM
Computers, DIY Projects, Electronics, Open source hardware |
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July 7, 2007
HOW TO - Make an aux-in for the Bose SoundDock
Will O'Brien posted this short how-to on Hack A Day because he says the site gets quite a few hits on posts about the Bose SoundDock portable speaker system. On my site, Street Tech, the review of the SoundDock also gets lots of traffic, so there appears to be a lot of SoundDock enthusiasts out there...
There is a solderless way to hack an aux input for the Sounddock.(1) Go to Wal-mart (or elsewhere) and buy the Griffin Dock Adapter for iPod Shuffle (~$20) and a Belkin Speaker and Headphone splitter (~$4). (The Belkin splitter is needed in order to fit properly over the Shuffle plug on the device, but other cables/adapters might work.)
(2) Remove the existing adapter plate and replace it with the Dock adapter.
(3) Set the switch to speaker. (Very Important!)
(4) Plug in one end of the Belkin adapter and you are ready to go! Any input signal automatically activates the Sounddock. Now you have a fully functional female and male stereo headphone input for your Sounddock.-->Total cost ~$25 and no soldering required.
Hack A Day - Link
Street Tech Bose SoundDock review - Link
Posted by Gareth Branwyn |
Jul 7, 2007 10:10 AM
DIY Projects, Electronics, Gadgets, Home Entertainment, Music, Portable Audio and Video |
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Hamster wheel steam train
Crabu sent us a link to this mate of his, David Wegmuller's, latest project, a steam train that carries its own hoop o' rail. Silly... in the most wonderful sense of the word.
Live steam hamster wheel gallery on David's site - Link
Related:
LEGO self tracker - Link
Posted by Gareth Branwyn |
Jul 7, 2007 12:00 AM
DIY Projects, Retro |
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July 6, 2007
Make Your Own Printed Circuit Boards - Make: Video Podcast
This week I teamed up with Xander Hudson to make PCBs. Besides being pretty, making your own printed circuit boards is fun and you can have a prototype board ready in a few hours.
First you need a design. There are a bunch of timer circuits in the latest issue of Make: that are begging for circuit boards. There are lots of designs online at places like discovercircuits.com
Eagle CAD has a bit of a steep learning curve, but it's got a library of parts that you can drag and drop onto the board that make getting everything the right size and proportion easy.
If you don't want to design your own circuit, you can download all the source files, including a pdf, and print them out on a laser printer out to make the Make: Light. - Link (Zip File)
Also, make sure to download the pdf that goes along with this podcast that includes a great article by Andrew Argyle that includes material lists and step by step instructions. - Link
Weekend Projects is sponsored by Microchip Technology. Check out their seminars and the Microchip Masters Conference.
Posted by Bre Pettis |
Jul 6, 2007 07:00 AM
DIY Projects, Electronics, MAKE Podcast, Weekend Projects |
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R2-S2 (Steam R2-D2) gets props on Star Wars Blog
Make pal I-Wei Huang, a.k.a. Crabfu, the steambots guru, was interviewed by Bonnie Burton for the Official Star Wars Blog...
How do your skills as an animator help when you make these cool creations?Being an animator, you tend to see things in a different way, and can't help but notice subtle details of how things move and work, especially in motion of humans and animals. To be an animator these days, you sort of have to have a balance between being artsy-fartsy and techy-geeky. I like seeing mechanical things work, because it's visual. You can watch and study the transfer of power, and figure out how one thing drives another. When it comes to non-visual things, like electronics, I have a hard time grasping concepts of how everything work together.
Satr Wars Blog - Link
Related:
- R/C Steam turbine tank - Link
- Maker Faire: Steam turbine tank- Link
- Make Podcast: I-Wei Huang's Steambots - Link.
- Interview with Crabfu Steamworks - Link.
- RC controlled steam beetle - Link.
Posted by Gareth Branwyn |
Jul 6, 2007 12:00 AM
Arts, DIY Projects, Made On Earth, Robotics |
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July 5, 2007
Drive tray guitar
Jonah writes -
This "Drive Tray Guitar" was built by a workshop participant during our MIDI Scrapyard Challenge workshop held at Eyebeam in NYC last weekend. Basically it was built by integrating an old computer's CD drive into the body of an acoustic guitar and using the "Ejection" mechanism to create a "strumming" function that when moved back and forth connected up the "strings/wires" to produce sounds. Really nice use of an existing instrument mixed with some electronics detritus from the scrapyard!Drive Tray Guitar @ MSC - Link.
Posted by Phillip Torrone |
Jul 5, 2007 04:00 PM
DIY Projects, Music |
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VeloAce - Open source Palm based bike computer
Here's an open source bike computer using an old Palm...
Bike Computer System for Palm OS. Provides detailed data views, logging to database, trip data estimation, trainer with Top 10 laps, graphical speedometer. Supports km/h and mph units. The wheel sensor is simply connected over RS232 or even IrDA.SourceForge.net: VeloAce - Link.
Posted by Phillip Torrone |
Jul 5, 2007 02:00 PM
Bicycles, DIY Projects, Gadgets |
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Auto-recorder project
Amin Rahimi's recorder project...
Being the huge band geek that I am, I decided that my project should involve some kind of musical instrument. Given the limited time that I had to complete the project, I decided to have my computer play a simple Yamaha recorder that was sitting in one of my drawers.Recorder - Link.Because of a limited budget, I used mostly components that I already had. The air compressor came from my car horn, which is capable of producing 138 decibels. This was clearly not the ideal compressor to use, but it was enough to get the project done without spending loads of money. As a result, the sound of the motor drowns out a lot of the recorder pitch as you can hear in the videos linked at the bottom of this page. You'll also notice that the speed of the motor changes with the pitch of the recorder to create the proper tone. This was done using pulse width modulation.
Posted by Phillip Torrone |
Jul 5, 2007 12:00 PM
DIY Projects, Electronics, Music |
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Gyroscopically stabilized CD-player(s) in microgravity
This astronaut shows how to build a gyro-stabilized lighting platform using three CD players for gyroscopes, thanks RayCeeYa! Link.
Posted by Phillip Torrone |
Jul 5, 2007 11:00 AM
DIY Projects, Science |
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Nixie clock build / review
Yngvarr writes -
Well, I built a nixie clock in the past, so why build another one? I saw this nice clock listed on makezine recently, and really couldn't resist...The kit arrived, well packaged. You can see below that the kit maker put a lot of personal effort into this. He supplies as much as feasible. That means wire, shrink tubing, solder and solder wick. Nice touch.Another nixie clock - [via] Link.
Posted by Phillip Torrone |
Jul 5, 2007 10:00 AM
DIY Projects, Electronics |
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Dipping duck orchestra
Kittclark writes in -
Music randomly generated by dipping ducks (AKA happy birds, drinking birds, dippy birds, happy ducks... etc). Using the basic parts of a keyboard, each duck is hooked up to a note of the octave. As their beak touches the water in the glass the circuit is completed and the sound is produced - Link.
Posted by Phillip Torrone |
Jul 5, 2007 08:00 AM
DIY Projects, Music |
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DIY iBook server booklet
Jonas writes -
A little while back i was given an iBook with a faulty screen as in not working at all.The chaos blog 2.0 ยป DIY iBook server booklet - [via] Link.
Having a hard time just throwing it away i was looking for a way to put it to use though it was a fairly old 500mhz G3 ibook.
Things being as they where i thought the only thing to do was using it as a server though it would mean quite a makeover, but thus the fun.First of all we need to take the ibook apart to remove screen, Optical drive and battery. All of these aren't necessary since we are building a server, "but what about restoring of OSX, don't we need the hard-drive for that?" Actually you don't since you can do it just as well in target mode from another hard-drive. Another thing we need to keep in mind is that we really want to keep the footprint of the ibook as small as possible.
Posted by Phillip Torrone |
Jul 5, 2007 05:00 AM
Computers, DIY Projects |
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HOW TO - Make bike gear windchimes
Offspringin writes -
Make your own unique windchime out of bike gears. Of course you can use any bike parts you want but the varying sizes of the gears produce different ringing sounds in the wind. You can use your imagination and come up with whatever you want. Paint, no paint, change the size, change the length, a great quick project with almost certain great results.Bike Gear Windchime - Link.
Posted by Phillip Torrone |
Jul 5, 2007 02:00 AM
Arts, Bicycles, DIY Projects |
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DRO-350
Kit for reading digital scales usually found on eBay (and later for use with a mill)...
The DRO-350 is a three-axis digital read-out (DRO) for import Chinese scales and most quadrature encoders that is designed to be as capable as commercial DROs but be a low cost alternative for the metal-working hobbyist. The DRO-350 is a do-it-yourself (DIY) project, not a complete, commercially manufactured product. All of the components necessary to build it are commonly available at Digikey, Mouser, or other electronics distributors. The printed circuit board (PCB) is specifically designed to use only DIP devices to make it easier for a hobbyist to assemble. The custom components needed to build the DRO-350, the bare PCB and the silk-screened overlay, are available to order on this site. The construction process is shown in step-by-step detail on the construction page and it is easy enough for somebody with basic electronics experience to build.DRO-350 - Link.
Posted by Phillip Torrone |
Jul 5, 2007 01:00 AM
DIY Projects, Electronics, Kits |
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July 4, 2007
NES-style Hydra LEGO casemod
Hydra creator Andre Lamothe sent in this cool link: Michael Zinn posted a gallery of a cool Hydra casemod that combines LEGOs with an NES design. You can read more about it in the Parallax forums
Related
Posted by Brian Jepson |
Jul 4, 2007 05:00 PM
DIY Projects, Electronics |
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HOW TO - Make a LED picnic blanket
Pointcloud writes -
Here in Los Angeles there are a bunch of places to picnic in the evenings and watch an outdoor movie,Portable Water resistant LED Picnic Blanket with hard center serving surface! - Link.
like Cinespia in the Hollywood Forever Cemetery. This sounds scary, but when you have your own vinyl picnic blanket to spread out on the lawn, to protect from damp and spirits, with its own built in light source under a milk plex center table area, everyone can see what they're dishing up and which bottle is the red wine! I've designed this thing to fold up for easy transport to to run for 4-6 hours on rechargeable AA batteries.
Posted by Phillip Torrone |
Jul 4, 2007 12:00 AM
DIY Projects, Electronics, Instructables |
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July 3, 2007
HOW TO - Tie a double fisherman's knot
Here's a video on how to tie a double fisherman's knot [via] - Link.
Posted by Phillip Torrone |
Jul 3, 2007 08:00 PM
DIY Projects |
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iPhone microscope
MAKE Flickr photo pool member Curiouslee writes -
The iPhone camera lens is flush with the back of the perfectly flat back of the device making it easy to hold a pocket magnifier loupe in front to convert the camera into a microscope. Here I am using a Radio Shack 15x 3-lens magnifier on a keycap of my Powerbook. An LED flashlight is adding light to the backlit keyboard symbols. Most any kind of loupe or pocket microscope should work. I'll be trying binoculars and spotting scopes too.iPhone camera as microscope - Link.
Related:
HOW TO - Take macro (close up) photos with a cell phone - Link.
Posted by Phillip Torrone |
Jul 3, 2007 04:00 PM
Cellphones, DIY Projects, Imaging |
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(Free) posters for school science and technology - electrical symbols, circuits and safety
Steve sent in these great (free) posters you can download and print out... Link.
Posted by Phillip Torrone |
Jul 3, 2007 02:00 PM
DIY Projects |
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