Sabtu, Oktober 10, 2009

Bike Scrounging


Bike Scrounging
Thomas Arey | Make Vol. 12- 2007 | Pdf | 2 pgs | 1 mb
I'm going to venture a guess that many makers' earliest
experiences working with tools and trying to figure
out machines involved a bicycle. Eden today it's the
rare kid who hasn't tried to fix or even modify their
bike. It's one of the reasons I still have great hope
for humanity.

Cycling is good basic transportation, a boon to the
cardiovascular system, and most of all, fun! But have
you ever considered that cycling can also be free?

In the course of the trash picking and dumpster
diving I do to bring these occasional articles to MAKE,
I often run across bicycles left at the curb with other
signs of our society's tendency to toss away what
might be repaired or repurposed.
...
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Beetlebot


Beetlebot
Jerome Demers | Make Vol. 12- 2007 | Pdf | 4 pgs | 2 mb
The Beetlebot is a very simple little robot that
avoids obstacles on the floor without using any
silicon chip - not even an op-amp, and certainly
nothing programmable. Two motors propel the
bugbot forward, and when one of its feelers hits
an obstacle, the bot reverses its opposite motor to
rotate around and avoid it. The project uses only
2 switches, 2 motors, and 1 battery holder, and
it costs less than $10 in materials (or free, with
some scrounging).
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Shoe Shine


Shoe Shine
Andrew Milmoe & Melissa Gira | Make Vol. 12- 2007 | Pdf | 4 pgs | 2 mb
...
While we designed the shoes with women's safety
in mind, they're also intended as a vehicle for self-
expression. The video shoe is essentially a portable
media player (PMP) placed in a platform shoe, and
can be configured to show whatever movies, images.
or messages you put on it. The other shoe has a
120dB siren, for when you feel like sounding the alarm.
...
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Lego Recharger


Lego Recharger
John Edgar Park | Make Vol. 12- 2007 | Pdf | 5 pgs | 2 mb
On a recent trip to Legoland. I saw a neat product
in one of the stores: a Lego key rack with Lego brick
keychains. What a great idea. I thought. With this
I could come home, empty my pockets, and have a
consistent place to hang my keys. But wait, what
about all the other devices I just pulled out of my
pockets. where do they go? And. for that matter,
how will all their batteries stay charged?

Then it dawned on me. If I attached a powered
Lego brick to each gadget to provide life-giving
juice for their thirsty batteries, I'd solve 3 major
problems in my life: lack of gadget organization,
lack of battery power, and lack of Legos attached
to all my possessions.
...
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The Atlatl


The Atlatl
Daryl Hrdlicka | Make Vol. 12- 2007 | Pdf | 4 pgs | 2 mb
Before the bow and arrow there was the atlatl^, or
spear-thrower, an ancient weapon that could throw
a spear or dart with enough force to penetrate a
mammoth's hide. It was used in North America for
about 10.000 years, and used by native Australians
and Aleuts as recently as 50 years ago.

It's easy to make your own atlatl, and throwing
with it is fun and very satisfying. Here's how to make
one in the style of the Kuikuru (kwee-KOO-roo) of
the Amazon Basin, who still use the spear-thrower
today. I'll also explain how to make darts for it, and
how to throw. But never forget that the atlatl is a
weapon. It is dangerous. A dart will go through a side
of beef. So I'll go through some precautions as well.
---------
^Most people say "at-LAT-I," or "AHT-laht-I" but pronuncia-
tions vary. Find one you like, get your friends to pronounce
it the same way, and you'll be right.
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Your Electronics Workbench


Your Electronics Workbench
Charles Platt | Make Vol. 10- 2007 | Pdf | 5 pgs | 2 mb
First, you will need a breadboard. You can, of course. call it a
"prototyping board," but this is like calling a battery a "power cell."
Search RadioShack online for "breadboard" and you will find more
than a dozen products, all of them for electronics hobbyists, and
none of them useful for doing anything with bread.

A breadboard is a plastic strip perforated with holes 1/10" apart,
which happens to be the same spacing as the legs on old-style
silicon chips --- the kind that were endemic in computers before
the era of surface-mounted chips with legs so close together
only a robot could love them. Fortunately for hobbyists, old-style
chips are still in plentiful supply and are simple to play with.
...
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Tight-Fit Workbench


Tight-Fit Workbench
Todd Lapin | Make Vol. 10- 2007 | Pdf | 2 pgs | 1 mb
It's hard to be a maker if you don't have a good place to do your making. Yet two things often stand in the way of building out a basic home workbench: high cost and limited space.

Industrial-grade fixtures and spiffy garage storage systems cost a pretty penny. Likewise. domestic real estate is a scarce commodity - garages must still be used for parking cars, basements for storing stuff. and utility rooms must shelter washing machines and assorted whatnot.

I faced those constraints and a little more when I set out to build a simple workbench in my narrow garage. To avoid getting in the way of my car, the bench had to be shallow - no more than 2' deep. I needed lots of storage for tools, small parts. and bulky boxes of big stuff.
...
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Jumat, Oktober 09, 2009

Hydraulic Flight Simulator


Hydraulic Flight Simulator
David Simpson | Make Vol. 12- 2007 | Pdf | 4 pgs | 2 mb
One time I saw a desktop gadget filled with
colored liquids that see-saws back and forth, and it
reminded me of the exchange between airspeed
and altitude, aka kinetic and potential energy.
I wanted to put a control stick on that gizmo to show
the cadets I taught, and this inspired me to build a
more complete flight simulator that used colored
water to represent energy. So I created my Hydraulic
Flight Simulator, which models the behavior of fixed-
wing aircraft in flight along the vertical or "pitch" axis.
...
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Boomerang


Boomerang
Cy Tymony | Make Vol. 12- 2007 | Pdf | 1 pgs | 1 mb
Have you ever wondered how birds fly or how sailboats can sail into the wind? In the last issue, I showed how to make a flying disc using the Bernoulli principle to generate lift; now let's use the same principle to create a boomerang out of ordinary stuff like cardboard.
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Boing Box


Boing Box
Mark Frauenfelder | Make Vol. 12- 2007 | Pdf | 1 pgs | 1 mb
A 1951 book called Radio and Television Sound Effects, by Robert B. Turnbull,
shows how to make a "boing box." (It's reprinted at bizarrelabs.com/boing2.htm.)
I made a modified boing box using a wooden cigar box and some scraps
I had around the house.
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Wealth Without Money


Wealth Without Money
Matt Sparkes | Make Vol. 10- 2007 | Pdf | 2 pgs | 1 mb
QUIETLY AND DILIGENTLY, IN LOCATIONS
all over the world, an organization is working to bring the means of
production to the masses. Their motto. "Wealth without money."
implies a political motivation, though they're not socialists, Marxists,
or communists --- they're hardware hackers.

Adrian Bowyer, at Bath University in the U.K., leads the RepRap
project (reprap.org) to develop a design for a very special
rapid-prototyping machine. The device treads a fine line between
being capable enough to produce complex goods, and simple
enough in design that it can produce its own parts. The result is
a self-replicating machine, with the potential to spread across
the planet at an exponential rate.
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Vibrobot


Vibrobot
Mark Frauenfelder | Make Vol. 10- 2007 | Pdf | 1 pgs | 1 mb
When my 3-year-old daughter dropped the $1 battery-powered fan I bought her, the plastic case cracked, ruining it. I promised her I'd make something even better using the fan's motor. I'm a fan of Chico Bicalho's wonderful windup toys, so I made a robot inspired by his designs. I call mine the Vibrobot, and you can make one in a couple of hours or less.
Download...
Mirror
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Tire Sandals


Tire Sandals
Tim Anderson | Make Vol. 10- 2007 | Pdf | 2 pgs | 1 mb
Solve multiple global problems at once when you
make your own sandals from an old tire.

An accumulation of old tires is an increasing problem
in the United States. Tires can't be easily recycled,
and mosquitoes breed in the water that collects in
them. But you can solve multiple problems at once
when you make your own sandals from an old tire.
...
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Making it with The Make Controller:


Making it with The Make Controller:
Our board does art, robotics, music, and more
William Gurstelle | Make Vol. 10- 2007 | Pdf | 3 pgs | 2 mb[/center]
The MAKE Controller Kit is a powerful and easy-to-use hardware platform that can interact with the physical world. It's based on a microcontroller, which is essentially a computer-on-a-chip. Unlike general-purpose microprocessors. here the memory and device interfaces required to run a simple (or not-so-simple) application are integrated onto a single board.
...
Download...
Mirror
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Kamis, Oktober 08, 2009

20-Watt Solar Panel


20-Watt Solar Panel
Parker Jardine | Make Vol. 12- 2007 | Pdf | 8 pgs | 3 mb
The sun is a renewable energy source that's free
and plentiful. Some people power their entire
home with solar energy. A few even sell back the
energy to the electricity grid for a profit.

I decided to start small and built my own solar
panels to supplement my workshop power needs.
Here, I'll explain in detail how to build a 16.5-volt,
20-watt solar panel.

In the next volume of MAKE. I'll show you
how to integrate the solar panel(s) into your
electrical system.
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The Biggest Little Chip


The Biggest Little Chip
Charles Platt | Make Vol. 10- 2007 | Pdf | 6 pgs | 2 mb
Back in 1970, when barely half a dozen corporate seedlings had taken root
in the fertile ground of Silicon Valley, a company named Signetics bought
an idea from an engineer named Hans Camenzind. It wasn't a breakthrough
concept, just 23 transistors and a bunch of resistors that would function as
a programmable timer. The timer would be versatile, stable, and simple, but
these virtues paled in comparison with its primary selling point. Using the
emerging technology of integrated circuits, Signetics could reproduce the
whole thing on a silicon chip.

This entailed some handiwork. Camenzind spent weeks using a drafting table
and a specially mounted X-Acto knife to scribe his circuit into a large plastic
sheet. Signetics then reduced this image photographically, etched it into tiny
wafers, and embedded each wafer in a half-inch rectangle of black plastic with
the product number printed on top. Thus, the 555 timer was born.
...
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The Sweet Sound of Particleboard


The Sweet Sound of Particleboard
David Battino | Make Vol. 10- 2007 | Pdf | 2 pgs | 1 mb
After transforming a record player and some plumbing
parts into a spinning speaker (seeMAKE, Volume
05, page 24), George "the Fat Man" Sanger is back
with a new way to enhance yourguitar sound.

His Goodwill Amp Enhancer is a DIY version of
the commercially available Enhancer. which beefs
up the tone of open-back amps by redirecting the
"lost" sound to the front.

The nicely finished commercial versions start at
$150 (soundenhancer.com), but the Fat Man built his
enhancer out of a $15 computer desk he scavenged
from a thrift shop. "It took just an hour or two," he
reports, "and adds wonderful tone to my amp."
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Sketchup Workbench


Sketchup Workbench
John Edgar Park | Make Vol. 10- 2007 | Pdf | 5 pgs | 2 mb
Google SketchUp is my favorite design tool, and if
all goes according to plan. it'll soon be yours, too.
Even though I use higher-end 3D software all day at
work, SketchUp still blows me away: it enables fast,
fun, and accurate 3D sketching unlike any other
program (it's free too!).

Makers will find SketchUp useful for all sorts of
things. from furniture design to workshop layout.
from project enclosures to robotic exoskeletons. It's
good for this kind of stuff becauseyou can rough out
your designs quickly. using real-world dimensions.

I decided to use SketchUp to design a much-
needed workbench. The first phase was to create
the conceptual model, which is a rough 3D sketch of
the form. The second phase was design engineer-
ing, where I figured out the real-world materials list
and construction plan for the project.
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Roomba Hacks


Roomba Hacks
Phillip Torrone & Tod E. Kurt | Make Vol. 10- 2007 | Pdf | 2 pgs | 1 mb
In May of 2006, Robot. makers of the Roomba
robotic vacuum, announced they had shipped
more than 2 million cleaning robots, making Roomba
one of the (if not the) most successful domestic
robots in history. With 2 million of anything that can
be taken apart, it was only a matter of time before
dozens of Roomba hacks hit the net.

Courting this audience, Robot opened up the
interface to all current Roomba models. and released
an educational version called the Create. With so
many ways to hack these suckers. makers responded
by building more projects and developing software.
Here's a roundup of some of the interesting projects.
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Propeller Chip


Propeller Chip
Dale Dougherty | Make Vol. 10- 2007 | Pdf | 9 pgs | 3 mb
The head guy at Parallax, Chip Gracey, is truly self-taught, which means
that he has had to find his own way. Twenty years after teaching himself to program the first generation of personal computers, the creator of the new Propeller microcontroller still speaks with the enthusiasm and amazement of a bright teenager: "The tools are out there. These days with the internet, it is so easy; you can learn anything. What used to be obscure stuff that only a few people were interested in - well, today those people put it on the net to share among themselves, and the rest of us have access to it."
...
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Nice Dice


Nice Dice
Charles Platt | Make Vol. 10- 2007 | Pdf | 5 pgs | 1 mb
For me, a good construction project should create an object that is fun, functional, and pleasing to the eye - and if it teaches me something interesting along the way, so much the better. I managed to satisfy all these requirements when I designed and built a pair of electronic dice. Although dice simulations have been around for many years, I was able to simplify the project while at the same time making it more interesting.
...
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Rabu, Oktober 07, 2009

Solar-Powered Bike GPS


Solar-Powered Bike GPS
Brian Nadel | Make Vol. 10- 2007 | Pdf | 3 pgs | 2 mb
I've spent much of my adult life dealing with either
computers or bicycles. Writing about computer
technology has put food on my family's table and a
roof over our heads, while riding helps me unwind,
clearing my head of the jargon that accumulates
throughout the workday.

During the summer. I'll disappear for hours on
long rides to nowhere and back. But I have to admit
on some rides I've gotten so lost I have trouble
finding my way home. Happily, I was able to build
a solar-powered GPS mapping machine, mostly
from old computer parts and software I had sitting
around my office. I've seen motorcycle-mounted
GPS navigation screens. but have never come
across one on a bicycle, even though it seems
like a natural mix of appropriate and functional
technology.
...
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Happy Blastoff


Happy Blastoff
William Gurstelle | Make Vol. 10- 2007 | Pdf | 6 pgs | 2 mb

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Origami Flying Disc


Origami Flying Disc
Cy Tymony | Make Vol. 10- 2007 | Pdf | 1 pgs | 1 mb
Understand Bernoulli's principle of flowing fluids and gases with a paper flyer.
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Lucid Dreaming Mask


Lucid Dreaming Mask
Nathan True | Make Vol. 10- 2007 | Pdf | 1 pgs | 1 mb
YOU'RE SITTING IN YOUR CAR, DRIVING to work. Al a stoplight, the car across the way starts flashing its lights al you. Squinting, you think: What's thisguy's problem? Lazily, you recall something about bright lights ... and then you remember. Flashing lights mean I'm dreaming? You take a moment to confirm it (yes, your glove compartment is filled with goldfish, as expected). then step calmly out of your car and decide to fly through the air.

This is the "lucid dreaming" state, which lets you interact consciously with your dream worlds and break the rules of reality. Lucid dreaming is fun, and enthusiasts have developed many ways of trying to induce the phenomenon, from simply repeating statements of intent ("I will realize I am dreaming tonight") to using hypnosis and brain wave analysis.
...
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Selasa, Oktober 06, 2009

RoboHouse


RoboHouse
Andrew Turner | Make Vol. 10- 2007 | Pdf | 5 pgs | 2 mb
My house is a robot. It thinks, reacts, predicts, and informs. Throughout the day it lets me know how its inhabitants are doing and takes care of all the little things I forget. If I'm worried that I left the front door open or that the heater is turned up too high, I can view my house's website or RSS feed through a browser or my mobile phone.

In addition to making my life easier, my house is concerned about saving the planet and my wallet. It can turn off unused appliances and lamps and
intelligently control my heating and air conditioning systern according to when someone is home and where it's coldest or hottest in the house.
...
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Radar Speed Detector


Radar Speed Detector
Ken Delahoussaye | Make Vol. 10- 2007 | Pdf | 5 pgs | 3 mb
I was browsing through a department store one day,
in search of a gift for my 8-year-old daughter, when
I came across Mattel's Hot Wheels Radar Gun
($30). The box said that this toy could clock the
speeds of not only miniature Hot Wheels cars. but
also full-sized vehicles.

I figured the toy must have severe limitations, but
decided to buy one for my daughter anyway. It turns
out that she (we) loved it, and we found that it could
accurately measure the speeds of toy cars. cars on
the road, even joggers. To my amazement. the detector
even measured the speeds of spinning objects
like bicycle wheels.
...
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Plastic Fantastic Desk Set


Plastic Fantastic Desk Set
Charles Platt | Make Vol. 10- 2007 | Pdf | 10 pgs | 4 mb
ABS* TO THE RESCUE
Last night I dreamed of a magical material
that would be bendable like metal, as easy to
shape as wood, and would never warp, split, or
splinter. It would be washable, would never need
painting, and would last almost forever.
...
*)Acrylonitrile Butadiene Styrene
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Wealth Without Money


Wealth Without Money
Matt Sparkes | Make Vol. 10- 2007 | Pdf | 2 pgs | 1 mb
QUIETLY AND DILIGENTLY, IN LOCATIONS
all over the world, an organization is working to bring the means of
production to the masses. Their motto. "Wealth without money."
implies a political motivation, though they're not socialists, Marxists,
or communists --- they're hardware hackers.

Adrian Bowyer, at Bath University in the U.K., leads the RepRap
project (reprap.org) to develop a design for a very special
rapid-prototyping machine. The device treads a fine line between
being capable enough to produce complex goods, and simple
enough in design that it can produce its own parts. The result is
a self-replicating machine, with the potential to spread across
the planet at an exponential rate.
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Mini High-Power Laser


Mini High-Power Laser
Liberate a 200mW Laser from a DVD burner
Stephanie Maksylewich | Make Vol. 10- 2007 | Pdf | 5 pgs | 3 mb
High-speed DVD burners are mass-market commodities now.
Most new computers sport DVD-RW drives, and discount shops
sometimes carry upgrade burners for less than $30. They're cheap,
but inside every one lies a hidden secret that many of us would
have killed for 20 years ago: a high-powered, solid-state, visible
red laser. This means that with a pretty small expenditure and
a little hacking, you can have a portable. handheld laser that's
powerful enough to ignite matches, burst balloons, and melt
plastic. Here's how to do it.
...
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Art Work: Illuminated Circuits


Art Work: Illuminated Circuits
Douglas Repetto | Make Vol. 10- 2007 | Pdf | 2 pgs | 1 mb
The art and craft of circuit design is an openended endeavor, with
enormous potential for both pragmatic invention and playful creativity.
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Downhill Makers


Downhill Makers
Jason Verlinde | Make Vol. 10- 2007 | Pdf | 3 pgs | 2 mb
SOME MODES OF TRANSPORTATION WERE destined for garage builders.Think of the thousands of wooden canoes, dune buggies, and steel-framed road bikes that hobbyists have created over the years. Modern, high-performance downhill skis, on the other hand. seem to be an entirely different beast. the kind ofstate-of-the-art product that only a big factory production process could churn out. Who else has the ability to fuse together all those exotic materials into a sturdy package that will safely get you down icy slopes, powder runs, and even the occasional cliff huck?
...
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Minggu, Oktober 04, 2009

In the Beginning was the CRT


In the Beginning was the CRT
George Dyson | Make Vol. 10- 2007 | Pdf | 3 pgs | 1 mb
Introduced in 1897, the cathode-ray tube brought us oscilloscopes, television. radar. computer terminals, the electron microscope. and, 110 years later, YouTube. But the hum of flyback transformers, by which so much code was written, is at an end. As the last generation of armblooded monitors vacates our desks, let us remember that the cathode-ray tube's contribution to digital computing began as internal memory, not external display.

Conventional CRTs display the state of a temporary memory buffer whose contents are produced by the central processing unit (CPU). Once upon a time, however, cathode-ray tubes were the core memory, and they stored the instructions that drove the operations of the CPU. This was one of those sudden adaptations of pre-existing features for unintended purposes by which evolution leaps ahead.

By 1953 there were 53 kilobytes of random-access memory in the entire world, with 5kB in the original IAS machine.
...
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Cool Photo Websites


Cool Photo Websites
Mark Frauenfelder | Make Vol. 10- 2007 | Pdf | 2 pgs | 1 mb
Thanks to the rise of inexpensive digital cameras and photo sharing
sites like Flickr. photography is more popular than ever. I've come across a number of useful and free web-based services that make it easier to save. share. organize, and edit your digital photographs.

How can I download many Flickr photos at once?
You can batch-download multiple photos from a Flickr set with a free utility. It's tedious work downloading a bunch of full-resolution photos from a Flickr account to your computer, requiring a lot of back-and-forth mouse clicking. Windows users have it much easier: they can grab a copy of FlickrDown (greggman.com/pages/flickrdown.htm), a nifty utility that makes it easy to download dozens or even hundreds of photos from Flickr in one fell swoop.

After launching FlickrDown, enter the Flickr username you're interested in. After the thumbnails load. you can check the ones you want. or select "All photos" (if the user has lots of photos this could take a lot of time and consume quite a bit of hard disk space, so be careful). Then select a directory to store the files in, and click Download.
...
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Electronic Test Equipment


Electronic Test Equipment
Tom Anderson & Wendell Anderson | Make Vol. 10- 2007 | Pdf | 9 pgs | 3 mb
Take a look at a printed circuit board. You can see components such as resistors and capacitors, but where is the voltage? Where is the signal? How do you tell if the circuit is working correctly? What if you want to change it?

Electronic test equipment lets you probe and "see" the voltages and currents running through electronic circuits. This article covers four basic devices: oscilloscopes, power supplies, function generators, and multimeters. Learning to use these tools - especially the mighty oscilloscope - requires patience, but it's an absolute requirement for building, trouble-shooting, and hacking electronic gizmos.
...
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Make0806: DIY - Home


Make0806: DIY - Home
Pdf | 9 pgs | 2 mb
MY LOVE AFFAIR WITH LEDS
Build a bright, low-powered desk lamp. By Charles Platt
TV SPINNER
Motorized lazy Susan aims the screen where it's needed. By Alan Mellovitz
SMART HVAC
Energy-efficient A/C knows when you're in the room. By Dave Mabe
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Windup Car


Windup Car
Paul LeDuc | Make Vol. 09- 2007 | Pdf | 2 pgs | 1 mb
When my pickup truck broke down, a friend lent me her Geo Metro convertible for 2 weeks. Well, I'm a good-sized guy, and at first I felt a bit silly driving this tiny car, but quickly tell in love with it. It's easy to park, great on gas, and o blast to drive. I decided to buy my own, and I though that if I'm willing to be seen driving this toy sized car, why not go all the way and put a big windup key on the back?
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