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Archive: DIY Projects
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January 10, 2008
HOW TO - Make a cockroach shocker
Mondo made an "electric roach motel" -
Using a PIC for this device provides a lot of useful functionality. The timing for the power pulse to the inductor is critical to getting the best Zap from your nine volt battery. The longer the current is on, the higher the voltage. Once the inductor reaches saturation, however, you are just wasting power. Some versions of this circuit charged up a capacitor (C1) with multiple pulses. This allowed the PIC to monitor the high voltage and produce a regulated output. Here is the current Source File. The version shown here just generates 400 volt pulses at a rate of 10 per second.HOW TO - Make a cockroach shocker - [via] Link.
Posted by Phillip Torrone |
Jan 10, 2008 05:00 AM
DIY Projects, Electronics |
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| Comments (2)
HOW TO - Make a pinhole Polaroid camera
MAKE Flickr photo poll member Duchamp writes -
A few weeks ago I attended a pinhole camera workshop by Dave Kemp at InterAccess. This workshop was a real inspiration, and since then, I've been going a little bananas with this whole pinhole thing. It's also helped me understand a bit more about regular photography. I thought I'd pass along some of what I learned. In the workshop we used photographic paper as a negative in our pinhole cameras, and we had a darkroom setup with all the developing chemicals and timer, etc. I'm a little too impatient and lazy to mess around with that stuff, so I've been toying with using sheets of Polaroid 600 film to get instant gratification.HOW TO - Make a pinhole Polaroid camera - Link.
Posted by Phillip Torrone |
Jan 10, 2008 02:00 AM
DIY Projects, Imaging |
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| Comments (1)
January 9, 2008
Homebrew sled out of skis
Jeff at Out Your Backdoor recreated his brother's fast sled design this winter:
What you do is take a plastic tub sled ($10 hardware store) and screw a pair of XC skis to the bottom of it---if it's a sled for kids---or a pair of metal-edge downhill skis if adults might use it. Use stout, short screws and big washers to avoid pull-thru. Then you glue foam-padding to the inside of the tub.Apparently the only problem is that you can't turn. If I lived in a place with snow, as I once did, this would be on my project list; great for recycling an old pair of skis! - [via] Link.
Posted by Becky Stern |
Jan 9, 2008 04:00 PM
DIY Projects, Transportation |
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| Comments (9)
HOW TO - Build a Polar 3-D printer from LEGO
Gene writes -
Have you ever dreamed of having one of those replicators from Star Trek? Ever wanted to make just about anything at the flip of a switch? Well guess what? You're in luck, because in this Instructable I will show you how to make the closest thing to a replicator that current technology can manage; a 3D printer. Wait a minute, isn't there another Instructable on how to make a 3D printer from Legos? Yep, there is, but this 3D printer is different; it's a polar 3D printer and it's capable of printing out so much more than just chocolate. Now at this point in the intro you're probably thinking what do I mean by polar 3D-printer. Is it a 3D-printer that only works in the in the polar regions? A polar printer is a printer whose principal axes, or how it can move, are radius(in and out), angle(spin clockwise/counter clockwise), and as opposed to a Cartesian printer whose principal axes are X(left/right), Y(up/down). In other words, it moves just like a polar coordinate system.HOW TO - Build a Polar 3-D printer from LEGO - Link.
Posted by Phillip Torrone |
Jan 9, 2008 01:00 PM
DIY Projects, Instructables, LEGO |
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| Comments (4)
Make a "Push-ped"
Nice bike/scooter hybrid great project from a 13 year old maker, nice work! - Link.
Posted by Phillip Torrone |
Jan 9, 2008 12:00 PM
DIY Projects, Instructables, Transportation |
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| Comments (0)
Pedal powered tennis ball launcher
Andrea sent in this awesome pedal powered tennis ball launcher!
This is a chimera tennis ball cannon made from a bike that you can pedal. It is both cleanly powered and built from recycled bicycles. It allows players varying in skill levels to practice to be better at both tennis and cycling. The launcher is towed to the court on its built-in bicycle trailer. A bike is secured to it and functions to drive the device. Pedaling the cycle as one would on a trainer drives the two launcher wheels. The cyclist then aims and pulls the lever to launch balls to the hitter.
Pedal powered tennis ball launcher - Link.
Posted by Phillip Torrone |
Jan 9, 2008 09:00 AM
Bicycles, DIY Projects |
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| Comments (6)
The stribe - touch-sensitive mixers with a LED matrix
Interesting touch-sensitive mixers with a LED matrix under the faders, Soundwidgets writes -
The Stribe's original name was "xenome" - a nod to Brian Crabtree's amazing monome 40h project, which inspired me to build the first Stribe in the summer of '07. For many years, I'd been thinking about and experimenting with alternative interfaces, but it was Brian's monome 40h that made me realize such a project could be successful without needing to be "discovered", then manufactured and marketed by some huge conglomerate. Along the way I changed the name to avoid confusion and to more accurately describe the Stribe's function. Stribe means "stripe" or "striped cloth" in Danish.The stribe - touch-sensitive mixers with a LED matrix, thanks Felixe! - Link.Because Brian's monome is an open project, monome.org contains tons of great information including schematics for their circuits, the firmware source, the Max/MSP applications... everything is there to study and learn. By poking through their designs, circuits and code, and the freely provided
"how this works" Max/MSP examples, I was able to understand the basic ingredients that would be needed for my own project.
Posted by Phillip Torrone |
Jan 9, 2008 07:00 AM
DIY Projects, Electronics, Music, Open source hardware |
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| Comments (4)
DIY Tangible user interface for performing a chemical search by just putting real objects down on a real surface
Andrew writes -
A while back, Roo Reynolds posted about his experiments with Reactivision. Reactivision is a really neat way of building what’re called tangible user interfaces; it’s a bit of software which reads in video being captured by a webcam and tracks the position (and rotation) of special blobs called “fiducial markers”. In other words, it can work out where, in the camera’s field of vision, these objects are, and what way they’re facing.DIY Tangible user interface for performing a chemical search by just putting real objects down on a real surface, thanks Attila! - Link.I’ve mentioned this thing in passing before, actually, but I didn’t think anything more of it at the time. Roo’s post mentioned that the core vision library was open source, though, and there’s a Processing library, so one night on my way home from work, I decided to buy a cheap £20 webcam from Tesco.
Posted by Phillip Torrone |
Jan 9, 2008 06:00 AM
DIY Projects, Science |
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| Comments (0)
HOW TO - Make EDIBLE googly eyes!
Evil Mad Scientist Laboratories write -
After more than a year of painstaking directed research by our Experimental Foods Division, we have finally achieved one of our most important longstanding goals: the production of edible googly eyes. Like many other great inventions, it seems almost simple in retrospect, but in this write up we walk through the process and show you how to make your own.HOW TO - Make EDIBLE googly eyes! - Link & photos.
Posted by Phillip Torrone |
Jan 9, 2008 05:30 AM
Crafts, DIY Projects |
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| Comments (1)
Drag bike micro-controller shifter and NOS control
ChrisP writes -
This started as a project about 2 and a half years ago when I started drag racing motorcycles with a friend who has a bike shop. The original project started as how to make things more efficient, easier on the motorcycle and of course more constistant. Of the bikes we race the fastest when pushed to the edge has been 7.92 seconds at 181mph if I remember the mph correctly, it consistantly runs 8.05 to 8.15 seconds in the 170's so obviously safety is paramount. Now of course this is the disclaimer that has to come with posting a project like this. Racing, Air Shifters and of course Nitrous Oxide can be very dangerous even in a well maintaned and planned system. I highly recommend that only individuals with full understanding and experience work on or operate either of these systems and claim no liability for there use. With that said, on with the project.Drag bike micro-controller shifter and NOS control - [via] Link.
Posted by Phillip Torrone |
Jan 9, 2008 05:00 AM
DIY Projects, Electronics, Transportation |
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| Comments (0)
Retro-future scooter made from appliances and scrap metal
Nemomatic writes -
Ever since I was a kid I have always loved old scooters. However I have never really wanted the responsibility of maintaining a "vintage" machine. I always thought to myself, "why can't we have the convenience and reliability of modern engineering like a Honda with the class and styling of an old Lambretta?" Recently it occurred to me that as an adult, I actually have the skills and facilities to address this important issue that has nagged me all these years. I am a metal sculptor, and have absolutely no experience with scooters at all. What follows in this instructable is my experience of stripping down a mid 1980's Honda elite 125cc scooter, and totally redesigning it with aluminum scrap metal.Retro-future scooter made from appliances and scrap metal - [via] Link.
Posted by Phillip Torrone |
Jan 9, 2008 02:00 AM
DIY Projects, Instructables, Transportation |
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| Comments (0)
HOW TO - Turn a Windows Mobile 6 device into a WiFi router
Jason writes -
WMWifiRouter is a new utility that you can run on your WiFi-capable WM6 device to turn it into a GPRS-uplinked WiFi router. When activated, it will set up your WiFi link in ad-hoc mode and start a DHCP server. Your laptop will see a new network called WMWifiRouter, and connecting to it will funnel all of your network traffic through your phone and its GPRS connection.It used to be that you had to use a separate laptop connected to your phone to do the routing and network address translation side of things. This hack will allow you connect 1 or more WiFi laptops anywhere where you can get a cell connection, and you can do it without additional hardware. All you need is your phone.
Why isn't this available as part of the base WM6 operating system?
More:
Posted by Phillip Torrone |
Jan 9, 2008 01:00 AM
Cellphones, DIY Projects, Gadgets, Wireless |
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| Comments (4)
HOW TO - Upgrade the XO laptop's operating system
Jason writes -
If you've visited the OLPC Wiki, you've probably noticed the box on the right hand side that shows the latest releases (stable and development builds). Although the current stable build listed is 650, there's a newer one (653) that you might want to upgrade to. But if you want the latest, greatest, bleeding edge XO builds, you need to check out the "joyrides". However, these can be extremely unstable, so be warned.If you're ready to install the upgrades, read on - Link.
Before you upgrade, there are a few things to know:
- You can have two versions of the operating system installed at any time. By default, you'll boot into the one you installed most recently. So if you start out with build 650, then install build 653 and reboot, you'll start up in build 653. If you hold down the O key (on the keypad to the right of the screen) as you boot, you'll boot the alternate operating system (in this case, 650). (At this point, I believe that 650 becomes the default and 653 the alternate.)
- At boot time, the XO laptop maps a pristine (see /versions/pristine) copy of the operating system into the running system's filesystem. Any changes you make to the filesystem are in another location (see /versions/run), but it all looks like one filesystem to you. When you reboot into an alternate operating system, any changes you had previously made to it are revived.
- When you use the olpc-update command to update to a new version of the operating system, the alternate operating system is wiped out (both the pristine version and any modifications to it)
- Through all of this, your home directory (/home/olpc) is left unchanged.
Posted by Phillip Torrone |
Jan 9, 2008 12:00 AM
DIY Projects |
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January 8, 2008
Stop robot callers with a tone
Aparently there's a U.S. Special Information Tone signal for a dead phone line, and robot callers (telemarketers, debt collectors, etc.) listen for it, then remove the "dead lines" from their lists. Record it at the beginning of your answering machine messages to make (some) robots stop calling you! [via] Link.
(Photo by Flickr user scriptingnews)
Posted by Becky Stern |
Jan 8, 2008 08:00 PM
Cellphones, DIY Projects |
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| Comments (10)
Multimeter clock
FunnyPolynomial squeezed a modified LEDkit.biz red LED clock into a stylish Digital Multimeter case! - Link.
From the Maker store:
With the LEDkit™ solderless clock kit, you create a giant -- 9" x 5" -- super bright self-standing clock only 1/8" thick that keeps accurate time -- even during power failures up to 1 minute. Change the brightness at the push of a button. The digits fade smoothly when the time changes -- minimizing distraction. Automatically synchronize multiple clocks. Easy to assemble & no soldering required! The unique wiring pattern doesn't need a traditional PCB with tiny parallel tracks on it. You simply twist the LED leads directly to other leads. Only six conductors enter the panel! Also available with Blue LEDs. Requires 60Hz (USA/Canada) electrical power. LED Clock Kit -Red - Link.
Posted by Phillip Torrone |
Jan 8, 2008 03:00 PM
DIY Projects, Electronics, Kits |
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| Comments (3)
DIY Facehugger Alien bag charm
Eva writes in -
I drew what I think is a cute picture of a chubby Alien facehugger, and tried to crochet is as a bag charm. Success! I've written out general instructions for making one, so now you can have a facehugger charm, keychain, or brooch too!DIY Facehugger Alien bag charm - Link.
Posted by Phillip Torrone |
Jan 8, 2008 01:00 PM
Crafts, DIY Projects |
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| Comments (0)
Bristlebot 2.0
A variation of EMS Lab's Bristlebot, with a variable resistor added to it.
And behold!: Mega Bristlebot!
Toothbrush bot - Link
Mega Bristlebot - Link
Related:
- HOW TO - Make a Bristlebot a tiny directional vibrobot made from a toothbrush! - Link
Posted by Gareth Branwyn |
Jan 8, 2008 12:00 PM
DIY Projects, Robotics |
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| Comments (3)
FrostBot - a CNC robot for frosting cookies
Brain made a computer controlled cookie frosting robot, he writes -
The Frost Bot robot consists of a small table-top CNC router kit made by www.fireballcnc.com, augmented with a forth axis stepper motor driving a frosting extrusion device. The four stepper motors of the system are driven by a single board called a Quad EasyDriver, which is based upon putting for Easy Driver boards together and sending them data using two shift registers. (Like a one-directional SPI bus.) This board is driven by a UBW controller board (from SparkFun) using a custom firmware and powered with a standard computer (AT) power supply at 12V. The UBW firmware takes motor move commands over the USB connection from a computer. The computer runs a Liberty Basic application that loads HPGL based vector graphics files, and sends them to the UBW. It also handles homing, jogging, zeroing, offsets, etc. The HPGL input files to the Frost Bot software are generated from Post Script files using GhostScript, and those .ps files are generated from SVG files made in InkScape. Although it all sounds really complicated, it is actually straightforward if you think about each chunk.FrostBot - a CNC robot for frosting cookies - Link.
Posted by Phillip Torrone |
Jan 8, 2008 11:00 AM
DIY Projects, Electronics, Holiday projects |
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| Comments (2)
Roll your own cathode tubes
In a follow-up to the amazing vid of a guy fabricating his own triode vacuum tubes, here's a webpage from a builder who shows how he created his own crude cathode ray tubes.
Homemade Cathode Ray Tubes - Link
Related:
Posted by Gareth Branwyn |
Jan 8, 2008 11:00 AM
DIY Projects, Science |
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| Comments (2)
Cobra Commander USB drive
Simple retro mod, a DIY Cobra Commander USB drive... Link. Spotted @ the "JoeCustoms" site, a community devoted to customizing GI Joes.
Posted by Phillip Torrone |
Jan 8, 2008 10:00 AM
DIY Projects, Toys and Games |
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| Comments (0)
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