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2008/11/28

[MAKE Magazine - daily] - MAKE Magazine


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Hello there, here are your daily updates from the MAKE blog - 2008/11/28.





3D printed business card holder

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From the MAKE Flickr pool, user pixl8ed printed his own business card holder out of FDM plastic from his own 3D design. Neat! Read more | Permalink | Comments | Read more articles in Computers | Digg this!

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Nerf Atom Blaster from concept to production

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Barry Kudrowitz, a Ph. D. candidate at the MIT Toy Lab, has a great page on his website that chronicles the design process that lead him to create the Nerf Atom Blaster.

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DIY oil change...


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There are many Instructables about changing your oil, but only one starts like this:


I learned to do oil changes in high school speech class. One of the boys worked in a garage. He gave a really great how-to demonstration/speech about changing oil. He gave another about rotating tires, but there isn't anything complicated about that. After each speech the teacher had the other students critique the performance. I didn't understand one of the speeches given by a boy who had polio or cerebral palsey. He thought I was unkind to his speech when I asked what it had been about, so he beat me up after class. My karate was not effective against polio-based techniques.

Check out the rest of Tim Anderson's oil-changing Instructable here. In addition to catching the rest of what happened with the "fight," pay attention to how Tim turns a mundane topic into an engaging Instructable!

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Waterfigures

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Spikenzie pointed out these excellent high-speed photos by Flickr member Fotoopa - beautiful stuff! - Waterfigures

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Precisely rendered paper synth

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Flickr user Gardenque created this exacting replica of a Korg MS-20 synthesizer in white. Elegant! - Paper Sculpture: In a Quiet Corner of Sussex [via Matrixsynth]

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Straight up chess

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These vertical wall-hangable chess boards seem like a good idea. Imagine playing a game with someone over time via casual walk-by moves -

There are no time clocks when you play on a Straight Up Chess Board. This is a casual game. As you pass by the Straight Up Chess board, you make your move, mark it with the "last move" marker and continue on your way. Later, your opponent passes by, makes their move and marks it as "last move".
A normal board could likely be converted easily with the help of some acrylic and a frame. - Straight up chess [via Neatorama]

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Tiny fender benders

71Chevelle.jpgNeed to spice up your greenhouse? Start a Crash Bonsai garden!

CrashBonsai is the creation of John Rooney, an artist who is torn between the desire to create and destroy. Recently, he has been making bonsai plants, and combining them with model cars and trucks which he has creatively smashed and melted, to create "CrashBonsai," little living car crash sculptures.

via Zoomdoggle

My first car was a 72 Chevelle, just about exactly like the one above, except for the tail lights. In it, I learned the value of not braking in an icy parking lot with light poles. It wound up looking eerily similar to the photo at the top of this post, but mine was smashed on the passenger side front, and still driveable for about a year longer.

Have you created unconventional ornamental arrangement? Does the term Junk Yard mean the same to you as to most people? Add photos of your disaster recreations to the Make Flickr pool.

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Instructables DIY gift ideas

Instructables has put together a list of suggestions for make-it-yourself gifts. I bet there's going to be a lot of handmade gifts this year. Great! A wonderful silver lining to leaner times.

I have a scarf that a friend knitted me for my last birthday. I was so touched that someone had taken that much time to make something just for me. It felt as though her affection for me was actually encoded in the scarf, in the many hours of knitting it. I think about this every time I grab it from the closet and put it on. I'm not sure any purchased item would communicate the friendly love and devotion, the true notion of "gift," the way this scarf does.

I'm hoping to make most of my gifts this year. In fact, my son and I are planning on doing one of the projects from The Best of Instructables and giving one to all of our family members. (I'm not going to say which one 'cause I don't want to spoil the surprise.)

Here are a few of the ideas for gifts that the Instructables team put together:

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Make a Custom Lift-the-Flap Book for a Toddler
I provide childcare in my home for three toddlers and I've noticed that they really love board books with flaps that open. So for Christmas I made three customized lift-the-flap books for them. This instructable will explain how to make your own and give some tips on how to make the process a little easier.


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Munny SpeakersGive your speakers some extra personality by making them out of a vinyl doll. Kid Robot makes the easily hackable Munny doll and I've been meaning to cut one up. The combined need for some new speakers created a happy union of doll and speaker.We included this speaker project in The Best of Instructables and Instructables had them at their booth at Maker Faire Austin. They looked pretty cool online, they look A LOT cooler in person! Really unique and beautiful. Of course, this isn't a cheap project, but one the recipient will never forget.


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Trendy note card gift set
Black and white is totally trendy right now, and what's hotter than adding a little "bling" to your life? So here's a super quick (only six steps!) note card design that you can make as a gift for that really hip gal in your life - or keep for yourself and use them as thank you's for all the not-so-hip gifts you'll be getting for Christmas!
There are so many amazing things you can do with paper products and crafting supplies. A trip to a Micheal's or places like PaperSource will give you all sorts of great ideas, for both presents and wrapping and packaging ideas. This Instructable shows just how easy and cheap it is make very swanky stationary with just a few special craft supplies and materials.


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Photo cube - frameless, cheap and easy!
I made this as a birthday card for my sister, but it's also a great cheap way to display photos without having to buy a frame. It would also make a lovely personalized bauble or gift box.
You could also use these as gift boxes.


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Audio Visual Art....FOTC Style
This guy made a LED back-lit, singing painting for his wife, as an homage to the Flight of the Conchords. You could obviously take the idea somewhere else entirely.



Gift Ideas

From the Maker Shed:
These are just some of the great ideas for homemade gifts. Instructables is a giant treasure-trove of ideas. And so is The Best of Instructables.


 Makershedsmall-1

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Best Of Instructables
Our Price: $34.99
Sale Price: $29.99
You Save $5.00!

Instructables.com has become one of the most popular magnets for makers and DIY enthusiasts of all stripes. Now, with more than 10,000 projects to choose from, the Instructables staff, editors of MAKE: Magazine, and the Instructables community itself have put together a collection of home, craft, food and technology how-to's from the site. The Best of Instructables Volume 1 includes plenty of clear, full-color photographs, complete step-by-step instructions, and tips, tricks, and new build techniques you won't find anywhere else.

Highlights from the book:

* 336 pages, 6-5/8 x 9-3/8, same dimensions as The Best of MAKE and MAKE magazine.
* Over 120 projects!
* Projects cover everything from food hacking and making home furnishings from junk to building robots and CNC milling machines. And in-between you'll find projects on arts, crafts, costume-making, tool tips, themed photo galleries, and tons more.
* There are also the results of the Community Choice contest winners (the best of Instructables as voted by its members) and links to their projects.
* There are key user comments from the site throughout, called User Notes, and even a section in the back for you to keep your own User Notes as you build the projects.

We tried to involve the Instructables community as much as possible in the creation of the book (we were in direct communication with several hundred authors!). We hope the results do this maker community proud. It was a thrill ride to be sure.


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Hand turkeys

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This is one of our Thanksgiving traditions - we have card stock and colored pencils out for people to make hand turkeys. Yep, just like you remember from grade school, you trace around your hand and fill in the features. Kids and adults both really enjoy themselves, and it's fun to see people get creative with it. I've also noticed that the grown-ups are often compelled to write their name, age, grade and teacher's name on the back. I hope everyone has a great Thanksgiving!

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Dorkbot NYC: the 110208th dorkbot-nyc meeting


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The 110208th dorkbot-nyc meeting will take place at 7pm on Wednesday, December 3rd, 2008 at Location One in SoHo.

The meeting is free and open to the public. Please bring snacks to share.

We're always looking for (and playing) more dorkbot theme songs! Bring or email one and we'll play it at the meeting.

+++++++

Featuring the alkaline and perchlorated:

Fang-Yu Lin: Political Science 101
Political Science 101: A Crash Course in Civil Discourse on Political Blogs is a net art installation that constantly scans and monitors hundreds of political blogs for headlines, keywords and trends. The "learnings" are presented as slides that are generated in real-time, using textbook style charts and graphs. A hacked slide projector projects these virtual slides to the screen in a simulated classroom setting. Hence, the class is a study of blogs as a political medium, and an appraisal of its traits and uses.


Alicia Gibb: Bug Labs
Bug Labs is a new kind of technology company, enabling a new generation of engineers to tap their creativity and build any type of device they want, without having to solder, learn solid state electronics, or go to China. Bug Labs envisions a future where CE stands for Community Electronics, the term "mashups" applies equally to hardware as it does to Web services, and entrepreneurs can appeal to numerous markets by inventing "The Long Tail" of devices. We believe everybody is an inventor at heart, so we've developed a platform for users to create and forever modify their favorite gadget, allowing for ultimate customization and use.


Jeremy Rotsztain: Media Impressionism
Media Impressionism is just one possible term for the practice of remixing cinematic imagery using well known practices from painting (such as collage, pointillism, and action painting), but using software-based tools. In this dorkbotty presentation, I'll discuss a few of my recent video art and computational imaging projects and share my working process.

Check out last month's presentations here. Good, dorky stuff in the Big Apple!

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Mac mini Apple pie

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Mac mini Apple pie - it doesn't get better than this folks.

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Heritage turkeys - Scalding and plucking to your table...

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Wow, Terrie (previous MAKE webmaster) has a great write up on Hertitage turkeys! Warning the page has dead turkey, the source of turkey meat...

I like to support the efforts of farmers who are raising heritage breeds of animals. Heritage breeds of livestock are often in danger of becoming extinct, because industrial livestock breeds create a monoculture of animals. Industrial breeds were developed for size consistency or volume of production, but unfortunately many of these breeds are not as hardy and require antibiotics or other measures to sustain them long enough to reach the age of slaughter. Heritage breeds are often sturdier, healthier, and are well-suited for particular niches of climate or other factors which make them great for non-industrial farms. The increased biodiversity that results in having more heritage breeds leads to a great resiliency in the food system.

It's shocking how different a heritage turkey can be from a commercial breed. Commercially bred turkeys can't even mate themselves because their chests are so oversized to produce more breast meat...they all have to be artificially inseminated! (Yup, remember that episode of Dirty Jobs?!) Check out this Definition of a Heritage Turkey for more details.




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Happy Thanksgiving from MAKE

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We have a lot to be thankful for this year--but most of all, we're thankful for our readers and community of makers who make MAKE what it is. Have a great holiday folks, and enjoy this Thanksgiving-themed post filled with projects and more for turkey time...

  • Liquid Nitrogen ice cream? Fractal pecan pie? A recirculating gravy fountain? - Link.
  • Make Video Podcast: Make Your Own Thanksgiving Turkey Out of Paper! - Link
  • Hack the Paper Turkey - Link
  • Make Your Own Turkey Plans! - Link
  • Thanksgiving Turkey-Making Instructions - Link
  • Hundreds of hand draw turkeys... - Link
  • Interview with a turkey fryer - Link
  • HOW TO - Harvest a turkey - Link
  • Making a thermocouple (measure turkey temperature with a multimeter and calculator!) - Link.
  • Thanksgiving calculator - Link.
  • DIY Thanksgiving: How to fry a turkey, turkey fryer kits, safety and more... Link.

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Make a Trebuchet in 2 hours


Who said making a Trebuchet has to be an all day project? This version took less than 2 hours to build and the results are great. The tennis ball flew 30', which is fairly impressive. You should be able to get even better results some slight modifications.

The purpose of this project was to design and create a working model trebuchet - capable of launching tennis balls - and manufactured from scrap materials in as short a time as possible.

With that in mind, it's not going to be a beautiful, efficient or durable machine, but hopefully it will still work...

How to Make a Trebuchet in 2 hours

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DIY Harmonic Table Keyboard

Aris is building an alternative to the usual black and white keys of music -

This is another project I just started working on. It is a keyboard/MIDI controler based on the harmonic table (like the c-thru music controler). This one is just switches which all connect to a midi core module (from ucapps.de) which translates the various keypresses to midi signals. There are 50 keys/notes and although I'm going to use letra-set rub-ons to write the notes onto the keys, you can make out which note is which from the blue keys. They are in pairs and one of each pair (the low/right) is an A (La for europeans) and the other is a C (Do). In the harmonic table layout that the C-thru axis uses (and others) , if you choose one button, the button above it is a fifth, the one to the top/right a minor third and the top/left a major third. (you can see c-thru's chord calculator here).
- Harmonic Table Keyboard

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Intersteller Visions

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Photograph by David Olsen

Down a lonely stretch of Sonoran desert highway south of Tucson, Ariz., lies the washboarded pull-off for Interstellar Light Applications. Visitors don't have to wait for the dust to settle to lay eyes on ILA's majestic moonlight collector, towering 6 stories high and 60 feet across, and weighing in at a healthy 25 tons.

Science enthusiast Richard Chapin conceived of the collector when a close friend was faced with a terminal illness. Chapin was intrigued by research on full-spectrum light therapy, which had been conducted mostly using artificial light sources.

Chapin wondered if the unique spectrum of moonlight might have been overlooked. The sublime lunar glow carries slightly different frequencies than sunlight, with more reds and yellows. It's no secret that moonlight is essential to a variety of life forms on Earth, but could it be used to aid the ailing?

Chapin collaborated with a crew of passionate engineers, telescope makers, and astronomers to design the collector. Comprised of 84 mirrored panels, each 4 feet by 8 feet, the "non-imaging optical array" is parabolic, hydraulic, and rotates 360

degrees with a mere 5hp motor. To weather the harsh desert conditions, the panels are made of a unique sandwich construction, with materials like aluminum honeycomb chosen for lightness, rigidity, and stability.

The collector is steered with amazing precision; the light can be focused on an area as small as 1mm or as large as 10 feet across. Due to the high volume of visitors, folks are allotted only a few minutes in its light, longer for those with serious illnesses.

Richard and his wife, Monica Chapin, are focused on promoting research and gaining scientific backing. They've worked with University of Arizona geoscien-tists who documented molecular changes in quartz crystals exposed to the collector for 45 minutes.

Believers abound, as witnessed by the exuberance of visitors and the testimonials on the ILA website. On any given full moon, folks from far and wide make the pilgrimage, hopeful that a solution could really be that simple, natural, and abundant.

>>Interstellar Light Applications: starlightuses.com

From the column Made on Earth - MAKE 15, page 21 - Goli Mohammadi.

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Turkey upgrade with Arduino!


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Yes - it's true. There is absolutely no item in existence that the Arduino microcontroller platform cannot enhance! Matt stepped up his Thanksgiving experience by adding a plethora of Arduino tech to his pre-cooked holiday centerpiece -

I'm always looking out for new ways to add more shields and components to my Arduino, and this felt like a natural (and festive) experiment, so I gave it a shot: it's an Arduino, Potentiometer (for user input), accelerometer (to know it's bearings), and compass (so the turkey's always facing due north), Lithium Backpack (for mobility of course), and TouchShield Stealth (for output) wired through a fairly large turkey :)
Now he can monitor vital Turkey orientation data with ease - and of course he outlined his process step-by-step - Introducing the 8-bit embedded TurkeyShield

More:
Wirebirdcopy
Arduino based turkey temperature probes

Makershedsmall
Mksp4-2
Arduino Duemilanove

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Game of life materialized in light and sound art

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Bill Vorn's "Evil/Live 2" is an interesting sound and light installation based on the algorithm Game of Life where each light represents an individual in a simplified version of life's self-organization. The project was built using a matrix of 256 halogen lights (16 x 16) is hanging from the ceiling on an aluminum structure. Audio speakers are also fixed on the structure, just behind the lights. Another speaker is located behind the viewers, up on the wall. Check it out in person at the Electrohype festival in Malmo, Sweden.

Bill Vorn

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Instruments of Invention

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Photography by Sam Alvar

Bob Dylan was born in his hometown, but Duluth TankPodDrum's shell is a hollow, 6"-diameter, performance artist Tim Kaiser has a different musical 14"-tall stainless steel vessel that Kaiser scored for hero: Harry Partch (1901-1974), an underappreciated 70 cents at a salvage yard. In his home studio, he composer who invented new microtonal scales for used stove bolts to add a right angle fitting from a instruments he built himself. hot water heater, brass bells from a rotary phone, a

"He was a curmudgeon and a brilliant musician comb of rods from a toy piano, music box tines, bits who couldn't stand convention and created his of chrome, and rack handles. When Kaiser bangs on own," says Kaiser, who also coaxes foreign sounds the attachments with a mallet, the drum acts as a from far-fetched equipment made by hand. resonator. A pickup epoxied to the barrel's interior As a teenage musician, Kaiser discovered a new connects to an amp or, if Kaiser is playing, a modu-auditory universe at the University of Minnesota lation delay that echoes and fades not only the pitch and began assembling avant-garde noisemakers but also the frequency. to suit his sonic tastes. His technique? Scrap parts After Partch died, the American Composers Forum and a junior high school electronics class. inherited the rights to his work and released more Some 20 years later, Kaiser has made more than than 100 of his recordings on the Innova record label.

150 instruments, including a stenography key- "I've always dreamed of being on Innova," Kaiser says. board wired with the guts of a mini teaching piano, Dreams apparently come true. In June 2007, a green effect box with beehive lenses that loops Kaiser's latest solo album, Analog, was released on a 2-second delay, and an old espresso bin called -- you guessed it -- Innova.

TankPodDrum, fitted with all things pluckable and tappable. Kaiser takes commissions, but saves his favorites for his own live shows.

Watch and listen to Tim Kaiser: timkaiser.org

makezine.com/go/eriksub

From the column Made on Earth - MAKE 12, page 15 - Megan Mansell Williams.

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LEGO powered Bluetooth printer


This is a plotter-type printer that is powered by a LEGO NXT. The website has a bunch of pictures and some videos. There are even screen shots of the code, but that's about it. I hope there is more information posted soon.

A little More about the LEGO powered Bluetooth printer [Let's Make Robots]

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Take apart: X-Ray Control Panel

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This is a really interesting tear-apart of an X-Ray control panel. There are a lot of nice components that could easily be hacked into something new. What would you use those amazing rotary switches for?

One of the electricians at work gave me a bunch of circuit boards from decommissioned equipment this week. It's usually elevator stuff, so I hadn't paid much attention to it other than to note the pretty colored wires. Then I was taking it out of my trunk to put into a "process later" pile when I noticed the front. "X-Ray." 60kV tube voltage. "Fine focus." Whaaaa???

More about Take apart: X-Ray Control Panel

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Materials: sheet goods

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We all need materials to make things with, right? Well here is a basic list of a lot of the materials that might be good for making or crafting projects. This list is not intended to be a final list, but rather a starter list. Sources for purchasing these materials were intentionally left out, because I think that most everything on the list can be pulled out of the waste stream and reused. If you have to buy it, do so sparingly so you can save up for the things you might actually need to purchase. If you see something missing, just add it into the comments. You might even see a material on the list that you haven't heard of or used before. Here it goes!

organic/pulp based
Tissue paper - Thin, not very structural, it can be taped or glued. It comes in lots of colors, and you can get it by saving up from all those bridal and baby showers you get invited to.
Newspaper - Every day another one shows up. Made of wood pulp and covered with ink, if you roll it, you can make tubes, or it could be folded or torn, or...
Printer paper - If you need a decent piece of paper, there is usually at least some of this stuff around. Maybe you have to go into the recycling bin looking for old memos, but there is more to be done with it than paper airplanes. You can also get designs that you print that have the fold marks right on them.
Magazine pages - The covers are heavier than the pages. Nice pictures, glossy paper.
File folders - Sometimes you can find them around with nice colors. The material is stiff, easily cut and can be taped, stapled or glued. Tab and slot designs work well.
Paperboard - Cereal boxes are a great source for this stiff, light cardboard. It seems like it is usually made of recycled paper and is gray or brown, short fibers.
Milk cartons - After you finish your cereal, save the milk carton, because you can make lots of great stuff with the water resistant cardboard that carried your cow juice.
Corrugated cardboard - Boxes, appliances, everything from amazon or ebay provide a ready supply.
Balsa - Light, soft and structural. Balsa gets used for lots of model making projects. Many model airplanes have been made of balsa, but the highest balsa adventure of all time has got to be Kon Tiki.

Plastics
Report covers - Going to a conference? Bring back some nice clear stuff. It measures about 11" x 17" when a report cover is flattened out.
Plastic sheet - This comes in a variety of thicknesses. Cheap plastic dropcloths, and all the way up to thick black landscape plastic or more.
Plastic jugs - Milk, water or apple cider jugs can be cut with a utility knife.
Salad containers - Use these clear containers to form clear sections of your constructions.
House wrap - Usually made of polyethelyne fiber, it comes in rolls for providing a vapor barrier before the siding goes on your house, this cuts nicely with scissors or a utility knife.
Boat wrap - When your neighbor sets sail in the spring, grab some of the white plastic they used to cover the boat you had to look at all winter. It is neat stuff, and is designed to shrink under heat. Nice and heavy duty, you can actually make yourself a boat of it.
Coroplast - You might know of a store going out of business that has just splashed the news all over town with their "Going....Going....Gone...." signs. When they close the doors, what are they going to do with all those signs? Coroplast is great stuff, structured like cardboard, but weather resistant. It can be scored, cut with a knife, on the bandsaw or with other cutters. You can fasten it with zip ties or tape it, or fold it like a cardboard box. Lots of potential here.
Soda bottles - Cut the top and bottom, slit the side and you have a decent piece of plastic. Suitable for making safety glasses with.

Foam
Take out trays and meat trays - If you cut off the curved parts, there will be some nice flat parts to make things with. You could try a hovercraft, but there are other things to be done after you finish the leftovers.
Packing foam - Some things like picture frames come packed with sheets of white foam. Usually, the packed stuff is made of lots of little foam balls stuck together. It is kind of messy to work with, but has a decent R value, and is kind of rigid.
Foam core board - Cut it with a sharp utility knife, glue it on the edge, paint it, spray adhesive coverings on it, nice to make architectural models from. You can probably find it in leftovers from presentations and science fairs.
Sheet insulation - This stuff is really fascinating. It is sold in building supply stores as an insulation material. Scraps can probably be found near newly constructed buildings. It usually comes in pink or blue and a range of thicknesses. It can be glued with wood or white glue, screwed together, drill it, cut it by scoring with a utility knife, table saw, jigsaw, bandsaw or with a hot wire if you want a nice clean edge. This is a great starter material for CNC tools like the shopbot or mill. It gives very little resistance to the tools, allowing you to build the technique and process before going to more expensive and less abundant materials.

Metals
Aluminum foil - It's in your kitchen, comes off your sandwich, conducts electricity, bends, folds and goes into the recycling bin when you are done.
Pie pan, turkey pan - Thicker and holds its' shape better than foil, pans can be cut with scissors, and if you want to try your hand at boatbuilding, you can even make a press fit mold for the hull.
Aluminum can - This can be cut with scissors once you get it started by piercing a can with a utility knife. Now that those huge, overly caffienated drinks are all the rage, cans can be turned into nice decent sections of aluminum. Sometimes you can incorporate the graphics into your design.
Tin can - Harder to cut, you will want to use aviators' snips to get this flat. It can be fastened with screws.
Flashing - Building suppliers sell flashing made of aluminum and copper. The copper is expensive, but really nice, and can be soldered. Aluminum comes in a zillion configurations, rolls, rectangles and more. You can also get larger sections of it as well, solid, or punched with holes and patterns.
Computer cases - Are you finally done with that 386? After you scrap out all the components, you will find some wonderful sheet steel. Usually the outside is beige, and the inside has a clear coat on it. 1/16 inch is pretty common. Fasten it with sheet metal screws or rivets. you can paint it or leave it beige. There is much to be done with steel.

So there is a semicomplete list of the materials you might want to be on the lookout for. What are your favorite materials to work with? Where do you get them? What is the best free source for materials? How much of these materials can you scrounge out of the recycling bucket? Post your suggestions in the comments and lets share the storage bin!

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DIY: Tilt-shift PC lens

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Tilt-shift photography can be a really expensive undertaking. Then again you can simulate the effect in Photoshop, but it just isn't the same. This is a great project to make that will save you a lot of money compared to the commercial versions.

I know there are people out there who would love to experiment with a PC Shift lens, but the cost of purchasing one is generally prohibitive unless you plan to shoot professionally with the lens. (A nikon shift lens with tilt functions cost over $1000, BTW: The Nikon guys once took a look over this and said, "why would you do that to such a nice camera? We sell that lens you know." I know. That's the point).

More about DIY:Tilt-shift PC lens

From the pages of MAKE:
Make 1100
In MAKE 09 we show you how to make your own! Tilt-Shift Photography - page 144. Subscribers--read this article now in your digital edition or get MAKE 09 in the Maker store - Link.

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HOW TO - Make a "TV-B-Gone Hat"

TVBGone
Turn off TVs by just looking at them - By Mitch Altman....

“Hey, you mind turning that thing off?” Simple enough question, but I got tired of people looking at me like I’m from Mars. When a TV is on in the room, I can’t think. I just stare at the thing and drool.


So I invented TV-B-Gone, a key chain that stealthily turns off just about any television. When the TVs turn off, people turn on, engage in conversation, read, eat, and perform all sorts of human activities. Peace happens.


I recently teamed up with prolific kit maker Limor Fried to create a $20 kit version of the original TV-B-Gone key chain. This version works up to 40 yards away, and it’s totally hackable; the entire project is open source and documented at ladyada.net/make/tvbgone. Here’s how I built one into a baseball cap that lets me look at almost any TV, touch the top, and watch with glee as it shuts off.

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Springatron 3000 - awesome Slinky reverb

springatron3000_20081126.jpg

Braden Stadlman wrote in with a link to the Springatron 3000, a gigantic spring reverb made out of Slinky and cucumber:

This is basically a giant spring reverb made from 10 slinkys. I was trying to make the best sounding spring reverb possible, I think I achieved this but it is probably the most inconvenient spring reverb ever made. The reverb time (sustain) is so long that the springs need damping and I found that the best material for doing this is a slice of cucumber wedged under the end of each spring, other materials like foam or rubber tend to kill all the treble.


...Although it is very inconvenient as a reverb, it is very good for making horror sound effects by playing it with a violin bow.

This is just one of several DIY mechanical synths made by Nick of Nick's World of Synthesizers.

The Springatron 3000

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Designer citrus-powered clock

citrus_clock.jpg

Florian Dussopt & Julie Girard designed this desk clock that's powered by one of my favorite early chemistry experiments: the Citrus Clock has zinc and copper electrodes under the lemon halves and through oxidation and electrolysis, powers the clock. I bet it makes your desk smell nice, too. Via Core77.

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