Category: Tech

SMD soldering video

Quick like lightning, Andy from Spark Fun demonstrates a neat solder wicking/soldering technique on this SOIC packaged MAX232 chip -
We tried to take some video demonstrating how to use solder wick when SMD soldering. While our video production skills could use some work, we hope we get the point across. Unfortunately the MOV files where so large (50-90MB) we had to down-sample and host on YouTube. They’re still pretty good…
YouTube - Soldering a SOIC MAX232 IC - Link.

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HOW TO - Make a homade puzzle, or “Why I love my jigsaw”

Dmacrae writes -
Inspired by the puzzles made by Staves, I decided to try my hand at making my own with my jigsaw.
This is my third, and because I haven’t seen an instructables about how to do it, I decided i would post about it.
For this you will need:

A small sheet of plywood or scrap. (I used 3/8th” which was definitely overkill and cost me a jigsaw blade)
An image that you want to make into a puzzle,
A jigsaw,
A few extra blades,
Spray adhesive,
Creativity,
A little bit of patience

I got my jigsaw to do simple work with aluminium, using it as a cheap alternative to a bandsaw. besides needing to frequently replace the blades, it has slowly won me over by being able to cut tight curves and by the smaller kerf size(more on kerf later).

Making a homade puzzle, or “Why I love my jigsaw” - Link.

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My take on the Make: birdfeeder webcam

Mjgsr writes -
I was intrigued by the Make: blog “birdfeeder cam” here. I thought the cam should be more weather-proof and came up with this idea. I wanted plenty of action so included not only a suet feeder but a tube feeder for seed and a stand for dried corn cob as well.
My take on the Make: birdfeeder webcam - Link.

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HOW TO - Build a Savonius wind turbine or VAWT to make electricity

Bhunter736 writes -
This is my project to make a semi compact wind turbine that can handle turbulant wind and generate enough power to charge deep cycle batteries. I will cover the rotor construction in the instructable. You will need to download my PDF for the whole project.
Build a Savonius Wind Turbine or VAWT to make electricity - Link.

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RFID experimentation kit

They’re sold out, but this a good bundle to get started with RFID –
Dare You Experiment with the RFID Devil? Depending on who you ask, RFID technology is either the “Mark of the Beast”, or a global panacea destined to rescue the grocery stores and Walmarts of the world from shoplifting. But any good geek knows that RFID is nothing more than tiny microchips powered by RF induction that store and broadcast a small bit of data. Want to learn more? Rather than rip apart your passport you can pick up this nifty RFID Experimentation Kit with over a dozen types of RFID tags, a USB based RFID reader and instructions for tons of insidious RFID projects. You even get a cool bio-implantable type of RFID Tag which you should never ever load into a blowgun and implant in any of your coworkers because it’s not surgically sterilized.
ThinkGeek :: RFID […]

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Multitouch table experiment

The tinker.it blog (and site) has tons of great projects for designers and artists, like this one a Multitouch table -
This is an experiment based on “frustrated total internal reflection” aka FTIR. This is a very basic demo and we did it just to see how it work and it took us just 4 days!
tinker.it » Blog Archive » multitouch table experiment - Link.

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Mouse taxidermy @ homeX

MAKE stopped in to homeX @ Parson’s with James Powderly of EYEBEAM. Last night was mouse taxidermy, the linked photos are of mice taxidermy, so if that is something that you’re not comfortable with please skip this - Mouse taxidermy involves dead mice.
Here’s a bit about the class… the homeX concept is really interesting, it would be great to see homeX classes sprout up around the world, learning some of these skills…
Disruptive Home Economics will take us all through the center and to the fringe of what it means to make-it and do-it-yourself. Through in-class workshops and small group or individual assignments, this course will expose students, instructors and guests to a range of tools and public domain research selected to expand our concept of what we can make ourselves at home. We will start by making or modifying existing DIY and How-to projects and studying the way other makers […]

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PID controlled bio-dome heating pad

Seth writes -
After a month of messing around, I finally got my act together and started working on my PID heating pad controller. Well, actually it is only a P heating pad controller right now, but I will go into that later.
The Goal: Create a PID controlled heating pad to regulate the temperature of a Bio-Dome.
I got two Arduinos for Christmas, so I had most of the hardware to control the heating pad. I was hoping that I would just be able to modify the pad’s circuits, but it is not just an on and off switch and the only IC on it was made in China by some unknown company so I could not find any info on it.

Jerd King - Link.

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HOW TO - Turn your iPod mini into a flash based iPod

Mark writes -
In this little proof-of-concept I was eager to try out if I could swap the Microdrive inside an iPod mini for a Compact Flash-card. These cards are getting bigger and cheaper by the day so my idea was, if this works out, we have a great way of extending the life of this little MP3-player.
geektechnique.org: turn your iPod mini into a flash based iPod - Link.

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Giant Explosions REPRODUCED IN MINIATURE by home chemists

This is great, a tiny grain silo explosion you can make yourself in your home lab, Popular Science 1933 -
HARMLESS, miniature explosions make experimenting with combustibles a thrilling, yet safe, amusement for the amateur chemist. With inexpensive homemade apparatus, he can duplicate the explosions in a gasoline motor and amuse his friends by burning air. When we say a substance burns, we imply that it combines with oxygen to produce heat and sometimes light. Hydrogen and carbon, as well as many other substances containing these two elements, display this property. A candle, for instance, is made of paraffin, a combination of carbon and hydrogen. When the wick is lighted, the paraffin melts and produces hydro-carbon gases, which decompose to form other inflammable gases and carbon.
Modern Mechanix » Giant Explosions REPRODUCED IN MINIATURE by Home Chemists - Link.

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Find and Share Toy Instructions, Mods, and Hacks

Brian @ Hackszine writes -
Jeremiah of Z Recommends has just launched a promising new site for hacking parents called toyinstructions:
a collaborative wiki of deep links to instructions, user manuals, and building guides for toys and children’s games. This site also offers links to blog searches, photos, and Yahoo user groups for toy brands, and a moderated list of top fan sites.
As detailed in the project announcement, search results for specific brands and toys (currently limited to products included at launch, but open for anyone to contribute) link to relevant photo searches (Flickr), blog posts (Technorati), user groups (Yahoo Groups), and DIY project ideas (a Google custom search that currently searches Instructables and the Make: blog).
Here’s what the page for the Super Soaker looks like, with its custom DIY link:

As Jeremiah points out, the site will only be as good as its contributions, so if you have hard-to-find toy instructions to […]

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Bunny rug

Fun, make a bunny rug, from an old rug - NoahW writes…
I used an LCD projector to trace a giant bunny outline onto an old shag carpet. Once the shape was cut out, I dyed it black to hide some of the stains and used a remnant of the original white carpet to make an eye. I used this process to make a bunny rug, but you can do the same thing to transfer just about any outline or shape onto a surface.

Bunny Rug - Link.

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DIY auto vacuum system

This is clever, Bob’s vacuum system turns on whenever he uses his wood working machines…
Woodworker Bob Neidorff bought a vacuum to collect the chips and sawdust from his shop equipment, and plumbed it to the vacuum ports on his power tools and to his homemade vacuum hose ports. But then, he had to turn it on and off every time he used a machine. That is, until he built this gadget. A torroidal power transformer and a handful of electronics detects the load current of the machines involved and controls the vacuum automatically. Now whenever the chips are flying, they’re heading for the vac.
Case #98: Bob Solved His Chip Problem - 2/26/2007 - Design News - Link.

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DIY Inclinometer: The SKYSCOPE

Ken writes -
Here is a link to a model rocket company called Quest. I just found a DIY project on their site that let’s you make an Inclinometer (a tool that allows you to measure the height of an object by angle). I downloaded the files and built one - it works great for telling exactly how high the trees are on our backlot property (admittedly - the “real” use is for telling the height of a flying rocket). I remember building one of these as a kid using a protractor and string. This new type is light years ahead.. and pretty cool!
Our Featured Model Rocket Project of the Month! - Link.

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