Toaster Oven Recipes - Need this category in FOOD

There needs to be either a contest for cooking stuff in a toaster oven, or a category in food for cooking in a toaster oven.  I'm going to college in a few months and I need yummy recipes and how to make them cook right in a toaster oven, since I can have one in my dorm.

Posted by hlagas 7 years ago


Help..."raising the floor"

Ok so i want to raise the ground level in my room by about 4 feet. so making a box that can hold proubly 200+ pounds and has carpet attached to it just like the floor. also it needs a way to rerout a air vent. feel free to ask questions about anything and thanks for any help

Posted by yuckzee 10 years ago


Instructables Build Day at MIT CPW

Couldn't make it to the last Instructables Show & Tell, Build Night, or Maker Faire? Host your own - it's easy!I just got a note from Amanda at Simmons Hall at MIT, who held an Instructables build day during Campus Preview Weekend. It looks like they had fun, and made some awesome stuff!Here's what Amanda has to say:A few weeks ago the Simmons Hall dormitory hosted an Instructables event at MIT geared towards welcoming the incoming class of 2012. As part of Campus Preview Weekend, we wanted to communicate the culture at MIT and my co-chair Marcella and I thought doing some instructables would be a great way to show that. We enjoy doing really hands-on and creative things in our spare time that span a huge range of talents and knowledge, and this knowledge is communal and we want to share it!We set up a few stations in our dining hall for a few different instructables, including bleach design tees and packing tape decals, and we had a great turn out... We've been getting really positive feedback from the original event and we're going to be doing it again during Orientation in late August.

Posted by canida 10 years ago


Security Camera For My Dorm Room

I was hoping to find some guidance here about how to make a special surveillance system.   I would like for a web cam(or some other camera of sorts) to monitor my vehicle out front of my apartment though my dorm room window.  I would like for that cam to run independent of a computer, and dump it's video files onto a usb/sd card.  Is this even possible?  I also need help shopping for which webcam would be most suitible(cost effective) for my purposes.  My car is about 20-30 feet away.  I'll attach a pic.(its the red jeep) More Specs: I have an outlet right next beneath the window, so ac power would be great. I have soldering equipment available to me if necessary, but keep it simple if possible. I have 100 bucks to spend. Thanks, Jello-Jigglers

Posted by Jello-Jigglers 7 years ago


Good Plants to Grow in a Dorm (1 Gal Container Limit)

What are some good plants to grow in a dorm room? I am limiting the container sizes to about 1.5 gallons (About 6.825 liters). Preferably something that would bear fruits or something. No herbs because I can't do any cooking anyway. East facing window. I've though of -Cherry tomatoes (A bit too big) -Strawberries -Black Pepper?

Posted by crestind 11 years ago


Clone Trooper Pops, Keyboard Wallet, Dorm Decor

Clone Trooper Pops Keyboard Wallet Dorm Decor EL Wire Guide Camping Crescent Rolls Natural Playdough Dye Evaporative Drink Cooler DIY Air Ionizer EL Wire Spiderweb Slow Baked Bread Money for Old Rope Micro TV-B-Gone CD Pendant Charm USB Laser Duck Desktop String Art

Posted by randofo 8 years ago


MIT Preview Weekend

Hi! My brother got into MIT and is going to the preview weekend. He said there is an instructables pimp your flash drive thing in one of the dorms. Who from instructables will be there?

Posted by zjharva 10 years ago


Preventing Kicked-in Bike Wheels?

After purchasing the toughest bike lock I could find, I got the wheels kicked in by a frustrated would-be thief who could only get through the plastic coating with whatever tool he was using. (he incidentally got all of the other bikes locked up outside my dorm.) The closest lockers are a 30 min walk away, and they only allow for a small, easily cut padlock. I have an uncharacteristically small dorm room, so racking it in my room isn't really plausible. Any ideas? Maybe a couple of spokes reinforced with steel bar, or a cheap homemade bike shed?

Posted by langleyLGLF 10 years ago


Man constructs 16-XBOX mobile LAN gaming center.

This giant Winnebago showed up outside our dorms today. There was a maker inside. More photos at the blog.

Posted by JamesRPatrick 7 years ago


Man constructs 16-XBOX mobile LAN gaming center.

This giant Winnebago showed up outside our dorms today. There was a maker inside. More photos at the blog.

Posted by JamesRPatrick 7 years ago


miracle in my dorm room?

Ok i'm no genius, so this might be a stupid question i goto to boarding school, and i have one of those plasma globes with the electricity inside, and when you touch it the electricity move to your fingers anyway, my roomate has this lamp, and i swear to god how it works is beyond me the lightbulb sits in the bottom of a tall metal box frame , the sides of which are covered with lampshade paper and the top of which is open it has three intensity settings, and to switch it through the three you lightly rap on the metal of the frame with your finger BUT: it doesnt work if you shake it, and if you tap it with plastic, metal, or a magnet nothing happens in addition to all that, if i sit the plasma globe near it and flick it on or touch it, the jesus lamp switches up to the next intensity (after the third it turns off) i think it might be a midget in my desk drawer, but if anyone knows better PLEASE enlighten me as to whats going on...

Posted by sethex 11 years ago


Sneak Preview of CameronSS's Evil doings

Here's a preview of what I'm keeping busy with while locked away in a dorm room. That motor on the far right is borked, I think a bit of solder got inside when I was attaching the hookup wires. It just sort of twitches. Turn down volume before hitting play... Apologies for the lousy picture, left the camera at home.

Posted by CameronSS 7 years ago


Replacing alarm speaker with vibrating motor (for sleeping with earplugs)

I just started college and have found sleeping with earplugs to be indespensible in a dorm room. I have a radio alarm that is pretty loud. I was thinking of ripping out the speaker and attaching a vibrating motor to it. Then I would mount the vibrating motor to my bed post or something, and hopefully it would be annoying enough to wake me up. Does the alarm send enough power to the speaker to power an electric motor? Thanks! -Cedric

Posted by polar8 10 years ago


Twitter Mood Light, Bacon Fruit Cups, Maker Faire 2010

  Twitter Mood Light Bacon Fruit Cups Maker Faire 2010 Moisturizer for Eczema Make Your First Robot Mobile Veggie Garden Ear Spa betacup Coffee Cup Challenge WInners Scorpion FX Makeup Elevator Stick Linux-Controlled Sprinkler Quick Resin-Cast Parts Keyless Dorm Entry Tableless Cloth DIY Mouse Trackball  

Posted by randofo 8 years ago


cheap hammock stands

I want to make a relatively small hammock stand no more than 6 to 7 feet in length for my dorm room. It should also be able to collapse easy for storage purposes. done any one have any plans that would allow me to do that? i was thinking about building it out of 1-11/4 PVC but that might be too flexible and break. ( i weigh around 170 lbs). thx guys

Posted by srikar06 10 years ago


Artistic project with bulk cd/ dvd cases?

Couldn't decide if this was more of an art question or a craft question... but... You know the ones... the clear cylindrical cases that encase the 50 count blank cds/ dvds? I've seen a few projects here and there, but most look pretty ugly/ college dorm-ish. Guess I'm hoping for some magical suggestions for something kind of artistic? Modern art-ish? Esthetically pleasing in some way? Just plain fun? Doesn't have to be practical at all if it's interesting enough. I've got quite a pile going if it helps the juices. Any suggestions gladly accepted! Thanks!

Posted by kranders 9 years ago


Games for LAN play?

So, I live in a dorm now with a few other students. We'd like to play a game together on our personal laptops, but we don't know which ones would be good to play. Requirements: 1. No internet access required. 2. 2-16 players or more. Multiplayer-only games are OK, but single player would be nice too. 3. Mainstream games are fine, but if you know of any indie games, that would be even better. 4. It doesn't have to be new. In fact, from 1990-2008 would be just fine. 5. Most of all, it has to be fun to play. Any help would be appreciated. Thanks!

Posted by Tomcat94 7 years ago


Post a Pic - Get a Patch

I've got a few patches to give away, so I thought I'd start a contest that would allow me to see some of your faces. Just post a photo of yourself doing something out of the ordinary before the 15th, and I'll send a patch to my favorite entries. That means you've got one week to put up a photo of yourself being the weirdos I know you all are. Oh, and if your picture needs explaining...please explain it.To start it out, here's one of me mattress surfing in the UF dorms. It's pretty much exactly what it sounds like:

Posted by Weissensteinburg 9 years ago


College Room Help

Hello. I've been sleeping in the same room for a while and I'm getting bored of it. I want to get a contemporary sofa bed because my room is kinda small and i think i can save some space by getting this instead of a bed. I would like to create/buy things to furnish my room that no one else has lol. I just want awesome DIY art and tech stuff that will make my room more personal and just feel like I made this room what it is. I want the theme to be like a urban/graffiti contemporary college dorm room type of feel. If anyone can help me out that would be super cool! -Rolling

Posted by rollingminority 10 years ago


Longest Comment on Instructables (Possibly)

Https://www.instructables.com/answers/What-essential-tools-should-I-include-in-my-dorm-r/The longest comment on this site is one by Guardian Fox on the "What survival tools should I keep in my dorm room tool box?" If anyone can find a longer one, please PM me the link.Keep in mind, he typed this with his own fingers, not by holding down the paste command for a day. If that's what you want, then go to https://www.instructables.com/community/the_forum_for_spam/ Source: Guardian FoxFor the dorm room, you only need a few tools. You're not going to be renovating, and you're not going to be doing much woodworking. You aren't allowed to do anything at all to the room beyond hanging pictures (if that), and most dorms forbid power-tools in the rooms no matter what you're use them for. Here's my take on what you'll need for the dorm. I've included a lot of things that seem unnecessary, and you can probably live without some of it... but the kit will get you through nearly any problems you'll encounter at school or in an apartment:-At least one decent multi-bit screwdriver. Look for something with a comfortable grip and sturdy construction. Avoid gimmicks like built in flashlights. I recommend the Piquiq brand which comes in a few different sizes and can be found in many hardware stores in North America. You can usually get their three-piece set for less than $20.-A set of jeweler's screwdrivers. Get a cheap set because these little things WILL get lost. Look for something with at least a few unusual bits as well as the usuals. Get a 30ish-piece set for less than $20. Most handy if you've got a thing for messing with your electronics, but also great for changing a watch battery, fixing glasses, etc.-A basic hammer. Nothing fancy needed here, and I've always preferred an ordinary wooden-handled hammer anyway. Go for a smaller hammer if you only plan on hanging pictures, get a regular-sized hammer if you plan on using it to do real work later on. Stanley is a good brand with decent prices, but there are lots of good budget-priced hammers out there. Drop by a hardware store and pick one that feels good in your hand. Less than $20 for a brand name. $10 or less for a bargain hammer. Make sure the head of the hammer is securely attached to the handle, no matter what brand you pick but a little tiny wiggle is ok. Hang a picture or tap a few finishing nails into a small project. Very handy, even when you use it wrong.-Two utility knives with snap-off blades. One with the small size, and the other with the larger size. There are hundreds of brands of these on the market, and a lot of them are junk so spring for an Olfa (the best i.m.o.) if you can find it. Richard is a decent low-cost brand which is often found in paint stores. Again, avoid gimmicks. The most important thing you need to know is if the locking mechanism works well or not, as a utility knife can become dangerous if the blade is going to slide around while you're using it. Good knives can be around $10-20 each. Cheap, "disposable" knives can be found for less than a dollar, but be sure to buy something that seems sturdy. Add a self-healing cutting mat from the dollar store, and while you're there get a metal ruler for cutting straight lines. Smaller utility knives are good for light-duty applications like trimming photographs or opening packages. Larger utility knives are good for harder work like cutting lots of cardboard-A measuring tape. You probably already have a ruler for school, but a measuring tape is much more useful for around the house. Get a 16' tape for good versatility. Choose one that has a sturdy housing and a tape that slides in and out easily. Bennett is a good budget brand you can find for less than $10 and I recommend theirs over any of the name-brand tapes out there. If you can't find that brand, go to the building supplies store and ask what brand the clerks and outside staff use around the shop. You could skip this one during college, but you'll need it one day and it's the kind of thing you can make uses for.-Pliers. For around the house and crafting I find a pair of long-nose pliers more handy than a pair of linesman's pliers, but both tools have their place. Locking pliers (aka vice grips) are also super-handy. Get one or a set, but avoid the bargain brands. Look to spend at least $7 each for basic pliers, and at least $12 for a good pair of locking pliers. -An adjustable wrench (aka thumb-wrench). Pick a smaller-sized model for your toolbox. Most of the nuts and bolts in the house will be small anyway. Go for something that opens up to 1" or 1 1/2" Brand isn't an issue, but make sure it operates smoothly and won't jam or work loose. Spend less than $10. -Scissors. A usable, general purpose pair of scissors can be found at the dollar stores or in an office supply store. Make sure they open and close smoothly and that the blades don't wiggle. Look for one with a metal screw at the pivot so you can tighten it if it works loose. If you're using it routinely for cutting fabric or any other specific task, spend some extra money and get the right kind for the job or at least a good pair of general purpose ones. Less than $5 for cheap ones, $20+ for quality ones.-Sewing notions; A pack of needles, a roll of white thread, a roll of black thread, and a roll of transparent thread, a few safety pins and any spare buttons you find. That should get you through any wardrobe fixes you may need. Each item in the kit should be a dollar or less, and you can save money by starting with a pre-made kit from a dollar store and adding a few of your own extras. Also highly recommended is this, http://www.dealextreme.com/details.dx/sku.1352 , but keep in mind it is cheap for a reason and needs constant attention.-A soldering iron if it's allowed in your room, and only if you're working with or fixing electronics or jewelry. Get a scrap piece of plywood or something to use as a work surface. $15 for a basic 30w iron. Another $10 for a safer stand.-A toolbox that holds everything. I like the ones that double as a step-stool, which you can find for $20-$30 if you look hard enough (mastercraft and rubbermaid brands). You might like something different, but small plastic toolboxes and even small plain steel ones are all quite cheap so go look and see what you like. You can even use your imagination and just use a plastic tote, a tacklebox, a backpack/messenger bag, shoebox, etc. Just pack your tools in it neatly and avoid putting the heavy or sharp ones on top of the ones that might break.-A plunger. If your dorm room has a bathroom, this is a must even if you never have to use it. It's an insurance policy against one hell of a mess. $10-$15.Anyway, that's all I can think of for tools. Craftier folks need more gear, and less DIY-prone folks need less. Use your best judgment and buy only what you can afford and might actually use. Pick up a few fasteners and adhesives too, usually as needed. Here's what you should probably keep on hand.-A package of assorted picture-hangers and hooks (if hanging pictures is allowed in your dorm). Buy a pack at the dollar store. A few extra finishing nails and small screws would be a good addition to this as well.-Thumbtacks. Buy a pack at the dollar store or office supply store.-Scotch tape, packing tape, duct tape (or Gorilla tape).-Twist ties. Get a bunch from a pack of trash bags.-A package of superglue. Rather than one large tube, get the pack with several tiny tubes so you don't lose your entire supply when one dries up.-Craft wire. Use it wherever you might use a twist tie, but also can be bent into whatever shape you need to become a tool or a piece of art. Dollar stores carry rolls of it often at 2/$1

Posted by M4industries 9 years ago


Science of Irrational Behavior

A lovely book review from The New Yorker. The book sounds like fun:In "Predictably Irrational: The Hidden Forces That Shape Our Decisions" (Harper; $25.95), Dan Ariely, a professor at M.I.T., offers a taxonomy of financial folly. His approach is empirical rather than historical or theoretical. In pursuit of his research, Ariely has served beer laced with vinegar, left plates full of dollar bills in dorm refrigerators, and asked undergraduates to fill out surveys while masturbating. He claims that his experiments, and others like them, reveal the underlying logic to our illogic. "Our irrational behaviors are neither random nor senseless -- they are systematic," he writes. "We all make the same types of mistakes over and over." So attached are we to certain kinds of errors, he contends, that we are incapable even of recognizing them as errors. Offered FREE shipping, we take it, even when it costs us.Another review from The NYTimes with an entirely different set of examples. This is definitely starting to sound like a fun read.

Posted by canida 10 years ago


Bunk Beds Dangerous for Kids, Hopefully Safe for Interns

A new report shows that bunk beds may be pretty dangerous things that can lead to broken toes, bloody noses, ceiling fan entanglement (!), falls, strangulation and more fun things. Thinking back on my own experience growing up on the top bunk as a kid and in school dorms, I think I can claim about three of those injuries. But it was fun and sometimes we combined the injuries like the time I pushed a kid off the top of a bunk (an accident, I swear) and as he was falling off he chucked a plastic squirt gun and nailed me in the forehead making me bleed all over the place.He landed on a cushion and I proudly went to the hospital. Good times.Well, here at Instructables HQ we have our own bunkbeds for interns and visitors and so far there have been no accidents. But, as this study from Nationwide Children's Hospital in Columbus, Ohio seems to say, it's only a matter of time before we add to the 36,000 reported injuries a year. Link

Posted by fungus amungus 10 years ago


Your Earliest Creations

What were some of your earliest creations? My first year in the college dorm, I hacked an alarm clock to turn on a light, and/ or radio in my bunk. Although there were existing light timers on the market, they were noisy, and inaccurate. My design had the option of switching on the light by the alarm, or with a toggle switch. It also had a low power neon bulb with which to check the time. It was all very easy to switch by touch.  Looking back, there were some funny things about it. I knew nothing about wirenuts. All the connections were soldered, then insulated with silicon caulk. All the switches and connections were installed in a box which had  held my crayons in elementary school. Hah. I still like physical buttons. I still have buttons on my cell which I can feel. I like that. I may have ta give that up soon to get a phone with the features I want. That whole braille operation thing, however, goes back to wanting to operate the thing in the dark, or while my eyes are on somethin else (like the road?)  All in all, I'd rather have a microwave with 2 intuitive dials than with fancy features which need 100 watts of lighting when I just want a midnite snack. But I ramble. Back to the original question: What did you make when you were young(er)

Posted by Toga_Dan 4 years ago


wifi receiver/repeater??

Hi everyone, i looked at the instructable of the wokfi antenna and the site of where it all started on that topic ( http://www.usbwifi.orcon.net.nz/ ).i found a free wifi access in my area, i got 1 pc (ethernet card+ usb wifi dongle), one laptop (wifi), a nintendo wii (wifi) and an old pc (233mhz, ethernet card) also a spare ethernet pci card and a pcmcia wifi not in the laptop, laying around .here's what i would like to do to have internet for free:- get the signal from the free wifi access point to the 233 mhz pc- use that pc as a firewall- then send the signal thru the ethernet cable and with another wifi (the pcmcia in the pc with a pcmcia to pci adapter or another usb wifi dongle, witch ever is cheaper) because my laptop can't reach the free wifi access point, it's to far..i'm looking for help on this please, i'll do an instructable with it because i think it could also be usefull to other. that whole idea of free wifi to anyone could be used here. because, let's say in a block, dorm, appartment a far away wifi connection could be shared localy. i've been digging for an intense 2 days now but my knowledge about networks and english (my first language is french) aren't that good so if anybody got an idea where to start looking it would be very appreciated.

Posted by novielo 10 years ago


Finally getting more pieces

I'm not exactly big on money at the moment. College student and all with limited working hours. Luckily, I have parents paying for a lot of expenses so I really only have to cover food that isn't under my meal plan and any other misc things that I want on the spot for supplies or entertainment. But I recently just got $25 online from doing surveys which I decided I'll put toward getting more pieces. I can't be bothered to buy all the pieces in one bulk, so I'll just probably be ordering big things of yellow connectors, green rods, and white rods to start. When I get more money I'll get other pieces, but those will already help me create a lot more things. Yes, I'm finally actually being bothered to get more K'nex in the 3+ years I've been K'nexing. So of course then the question is what things should I build now? There are a lot of things that I want to make just for the sake of putting my own spin on them. For example, I recently rebuilt my UMP from a lack of patience and a need to have something around the dorm room again (possibly using it in a video my friends are making with nerf guns). I was thinking I might have a go at making a personal assault rifle. That is, those weapons (can't think of the names of any examples) that people built mainly to have a lot of features, look somewhat like a real assault rifle in style though with their own design, and not built exactly to be great in function. I figured I'd use my UMP as a starting point. I actually wanted to make mine look decently realistic. So yeah, that'll be a just-for-fun weapon. Any other suggestions? I'm thinking less about new concepts and more about things I can put a personal spin on or perfect.

Posted by TheDunkis 6 years ago


Ch. 1 In which SHIFT! comes to Instructables and is very excited to begin

Hey Instructabrarians, So here I am.  Headquarters of Instructables.  In 82cd Second St, San Francisco.   AND IT'S FREAKING AWESOME! Seriously, I still can't believe I get to come here every day!  While the outside may appear small, the entire facility is huge.  Immediately upon entering the building you are greeted by a long  ascending brick encased stairwell, which gives a very good impression of a classic London bookstore, which lead up to about a 15 foot high rise above the SF Streets.  Then, at the top of the stairs the whole building unfolds to reveal the entire HQ of Instructables, a place where you can instantly tell there's always something new going on.  It's quite filled with different projects, and various workshops that decorate the interim of the facility.  Exactly like an oversized engineering student's dorm room might look.   This place is amazing!  As soon as you enter you can immediately tell this is a place where DIY and homebrew are the norm.  Each room is actually organized like the Category section on their site- they've got a Kitchen for Food and Cooking, an awesome Workshop (complete with Laser Cutting Printer), Electronics and homebuilt ardruino Robot table, shelves filled with Arts and Crafts.   As a huge fan of the site I couldn't help but point out how many classic 'ibles I recognized.  Another awesome fact about instructables. While most companies would provide the usual simple shed or bike rack to employees, Instructables is smarter and more creative.  They hang their bikes on the wall. WOW.  I can say I never would've thought of that. Even their bathrooms are awesome- they decorated one of their doors with a Portal Cake sign! Honestly that alone is worth several points on the TV Tropes "So Cool It's Awesome" factor.    And I haven't even come CLOSE to describing the rest of the facility!   However, most important to me, is that the people are so friendly.  I was really worried about my first day job, but everyone was extremely nice and welcoming to me and I can't wait to begin work!   But the truly best part is that they're not just awesome Instructabrarian Employers, they themselves are also huge fans of the site and have their own personal instructables.  Tuesday is show and tell day where everyone presents something new they're working on and I can't wait to see it!  They're also completely understanding and are even giving me some time to work on my DIY PIXAR booth for the Maker Faire!   Thanks!  Anyway, today is Wednesday so not a ton of people are in today.  Luckily I got a chance to talk with Instructables gurus such as Sarah, Christy and Eric Wilhelm (yes, THE Eric Wilhelm!).  Right now a NBC new crew, or is it CBS?, is filming a special report on Fenix on their latest project- a portable power generator for the Middle East!  Overall, this is such an amazing introduction for me.  I'm still totally geeking out about all of this and I hope this dream doesn't end soon! -ME PS I'm sorry if I forgot to mention anyone.  Also, 3-DMO (my N3DS) pictures will be uploaded on my flickr site soon.

Posted by SHIFT! 7 years ago


Spy Glasses, Animatronic Lion Mask, Speed Up Your PC...

Sign-up for our newsletter here. Jan. 10, 2008 Welcome back. Instructables is a finalist for Best User-Generated Content Award in the Crunchies over on techcrunch. We'd love to win so vote for us! The Homemade Holidays Contest closes this weekend. Enter now or wait till next year! The Laser Cutter Contest finalists have been announced! Check out these cool instructables! WinXP Overhaul Guide: How to make it look like Vista & run like lightning Give your Windows XP installation a complete overhaul with an updated interface, speed tweaks, and free software. Who needs Vista? posted by CharredPC on Jan 9, 2008 Pipe Loft Bed Get more space in your cramped dorm room with a trip to the hardware store and some quick construction.posted by nerdologist on Jan 5, 2008 Realistic, Animatronic Lion Mask with stereo night vision and amplified hearing Build a realistic lion mask with moving jaw, stereo night vision/color vision system, and amplified hearing augmentation. posted by Solion on Jan 8, 2008 Covert Spy Sunglasses Make your own sunglasses that secretly record video and audio for less than $50. Remember to use these powers for good and not evil, OK? posted by Kipkay on Jan 9, 2008 Making an army of Gromit's (Claymation Mold making) Fancy making a stop-motion animation Aardman style? Chances are that you will need more than one clay figure. You'll likely need an army. posted by edwatkins on Jan 8, 2008 Show off your project and win Lion Brand yarn!Contest closes this weekend! Shadow or Illusion Knitting Shadow knitting, or illusion knitting, is a process of knitting such that the finished piece has a hidden image only viewable from an angle. Learn how.posted by ERNesbitt on Jan 7, 2007 Give your loved one a real "fallen star" It may be romantic to name an anonymous dot in the sky after your loved one, but how about catching a real "fallen star" for them? posted by Kiteman on Jan 6, 2008 Perfect English SconesA recipe for the perfect rustic english scone which goes with sweet or savory foods like clotted cream and jam or parmesan and spinach... yum.posted by dancook on Jan 5, 2008 Noise Free HDD Does your computer's hard drive sound like it's getting ready for lift-off? Use this trick to bring some peace back into your life. posted by liknus on Jan 7, 2008 Turn a TI Graphing Calculator into an Intervalometer and Create Time Lapse Videos A quick and cheap way to make time lapse videos with a DSLR and a calculator that is quick, cheap, and requires little time or skill. posted by yonderknight on Jan 5, 2008 Laser Cutter Finalists! We looked at over 600 entries for the Laser Cutter Contest and decided on 14 finalists for the VersaLaser worth over $15,000. Now the voting is open to Instructables users until Jan. 31. Vote for your favorite Instructables! Check out the 2008 Instructables and Universal Laser Cutter Contest Finalists Announcement to see all the finalists and 20 second prize winners. Or you can go straight to the Voting Page to cast your votes now.   Now go make something awesome, and I'll see you next week! - Eric

Posted by fungus amungus 10 years ago


Arduino knock sensor with a twist

Hey there! I live in a dorm and there's no preinstalled doorbell so i thought i'd do something funkier. I've used the stock Arduino Knock code and modified it a bit so agitating the piezo will make a connected buzzer beep. The problem is that while the entire setup is working, the buzzer itself is very very quiet. With a pure tone making script the buzzer will make a loud BEEEP, but combined with the knock code it's extremely quiet. I'm new to Arduino's so please bear with me when i show my code (most is copy/paste to fit): /* Knock Sensor      This sketch reads a piezo element to detect a knocking sound.    It reads an analog pin and compares the result to a set threshold.    If the result is greater than the threshold, it writes    "knock" to the serial port, and toggles the LED on pin 13.      The circuit:     * + connection of the piezo attached to analog in 0     * - connection of the piezo attached to ground     * 1-megohm resistor attached from analog in 0 to ground    http://www.arduino.cc/en/Tutorial/Knock       created 25 Mar 2007    by David Cuartielles    modified 30 Jun 2009    by Tom Igoe  */   // these constants won't change: int speakerPin = 9; int ledpin = 13; const int ledPin = 12;      // led connected to digital pin 13 const int knockSensor = 1;  // the piezo is connected to analog pin 0 const int threshold = 10;  // threshold value to decide when the detected sound is a knock or not // these variables will change: int sensorReading = 0;      // variable to store the value read from the sensor pin int ledState = LOW;         // variable used to store the last LED status, to toggle the light void setup() {  pinMode(ledPin, OUTPUT); // declare the ledPin as as OUTPUT } void loop() {   // read the sensor and store it in the variable sensorReading:   sensorReading = analogRead(knockSensor);        // if the sensor reading is greater than the threshold:   if (sensorReading >= threshold) {     // toggle the status of the ledPin:     ledState = !ledState;       // update the LED pin itself:            digitalWrite(ledPin, ledState);     buzz(9, 2500, 500); // buzz the buzzer on pin 4 at 2500Hz for 1000 milliseconds   delay(100);    }     // delay to avoid overloading the serial port buffer } void buzz(int targetPin, long frequency, long length) {   long delayValue = 1000000/frequency/2; // calculate the delay value between transitions   //// 1 second's worth of microseconds, divided by the frequency, then split in half since   //// there are two phases to each cycle   long numCycles = frequency * length/ 1000; // calculate the number of cycles for proper timing   //// multiply frequency, which is really cycles per second, by the number of seconds to   //// get the total number of cycles to produce  for (long i=0; i < numCycles; i++){ // for the calculated length of time...     digitalWrite(targetPin,HIGH); // write the buzzer pin high to push out the diaphram     delayMicroseconds(delayValue); // wait for the calculated delay value     digitalWrite(targetPin,LOW); // write the buzzer pin low to pull back the diaphram     delayMicroseconds(delayValue); // wait againf or the calculated delay value   } } If i get this working i'll see if i can make an instructable out of it (and make a "secret knock identifier"). I ended up using this code: [url]http://vimeo.com/groups/arduinoprojects/videos/1940394[/url] which works (code can be found by following the links) And it works! I'm still wondering what was wrong with my (pasted) code though.

Posted by Eirinn 9 years ago


Kite-powered proa (boat) collaboration/comments

Added 5/26/07: Please read the comments below to see how the project is evolving. Design specs, goals, etc, have been modified after discussion.Hi Folks,For several years I've been wanting to build a kite powered proa. A proa is a kind of boat with a narrow hull and a smaller outrigger. These Instructables are about building a proa with a traditional sail:https://www.instructables.com/id/ERIIBDCCOTEPUCHZ1K/?ALLSTEPShttps://www.instructables.com/id/EZN8M3OCWZEV2Z7IR5/?ALLSTEPSThese are kite-powered proa-like vehicles for land and ice:https://www.instructables.com/id/EPKZ5O80HQEQZJI20F/?ALLSTEPShttps://www.instructables.com/id/EPWWSYZNWIEV2ZKLCH/?ALLSTEPSGoals for the project:1. Make at least one good boat.2. Publish a good Instructable.3. Work with interesting people.I am definitely going ahead with #1 & #2. #3... anyone interested?The Boat: Generally it should be appealing/attainable by as wide a range of budgets and circumstances and skill levels as possible.a. It should be fun to mess around with starting in about 6 or 7 mph of wind (3 m/s).b. A beach boat, not an overnighter. Should be able to carry one or two people, a paddle, personal flotation device and maybe a sandwich and a water bottle.c. Storable in a typical apartment (maybe even a dorm room?). I'm thinking a 2-part bolt-together hull like Wade Tarzia's above. Two halves, each under 8 feet long so they can be stored on end, maybe used as bookshelves as suggested by TimAnderson. What is a typical ceiling height? Mine is about 91"d. Possible to build on a restricted budget ($200? is that possible? $400?). I'm budgeting about $500 but as a cheapskate packrat scrounger type I am hoping not to spend it all. Should also avoid necessitating rare and expensive tools.e. It should be possible to make a "good looking" version if the builder chooses.... sort of financially and chronologically(?) scalable. Someone might want to build something as quickly and cheaply as possible, and another person might want to spend all summer working on the fine details and finish. The boat should be worth building in either case.f. Should be able to take a passenger (is that possible if we rely on weight-shifting for steering?), but be sailable single-handed.g. Possibly be adaptable to a traditional sail? Would this be hard? This is something I don't need for myself, but I bet someone will ask that question as soon as we publish it. If someone doesn't already have a kite, is it easier to build a kite, or a sail and associated mods to the boat?h. Probably plywood stitch-and-glue construction main hull, but maybe carved from a couple of Styrofoam billets with a plywood stringer and/or deck? Leaning towards all plywood. If we fiberglass the whole boat can we use 1/4" interior luaun at $9 per 4x8 sheet? Is that more practical and cost effective than something like occume at $60 per sheet with glass on just the keel and joints? We'd need 3 sheets. Need to do some calculations on this.i. Usable in flat water, chop and small waves (and bigger waves?). Mine will be used mostly at an ocean beach.j. Steerable by weight-shifting, i.e. moving towards the front or back of the boat. No rudders or daggerboards. Maybe paddle-assisted steering when carrying a passenger/helmsman?The Instructable:a. Should be a good read, even for folks who won't undertake the project. b. Doubles as an Instructable on how to collaborate to make a great project and a great Instructable.c. Represents everyone involved in the project in some way.d. Gives the potential builder a rough "how to sail it" as well?e. Presents the reader with several options for materials and/or construction.f. All the regular "what makes a good Instructable" things.The Interesting People:a. Everyone is interesting in some way or another, right?b. Some people like to do research on the web.c. Some people have built boats.d. Some people some know about wood, or glue, or paint, or kites, or sails, or writing, or... e. Maybe someone will build the boat concurrently so we'll have pictures of two or more versions at various stages when we publish the Instructable.Let me be the first to sign up :) I have been using kites to get around fields, beaches, frozen lakes and the ocean for 10+ years. I make my own kite boards and have made my own kites (I use commercial kites now but still love my homemade plywood boards). I've done a fair amount of web research on proas and plywood boats (and some on tarp boats, canvas covered canoes, surfboards, etc.) but I have never built a boat. I experimented with a busted up, rudderless old hobie 14 for a while, but my homemade foot-steerable rudders broke almost instantly, and shortly after that I had to abandon the boat because I moved to a place where it couldn't be stored. It was enough to get me interested. I'm pretty confident I could build a usable boat as a solo project but I want to see how much better it could be as a collaboration, or at least having a few folks commenting on my ideas.I have a small assortment of cheap power tools. I've used epoxy and fiberglass a few times and I have some on hand.I have permission from my lovely bride-to-be to use part of the kitchen, part of the time, as my workshop (that's true love). I also have a small are outside where I can work but I can't leave anything there.The pictures are my initial hull ideas. For each hull one pic shows the hull from 3 angles and the other shows how the side pieces would fit on two sheets of plywood. A third sheet would be needed for the deck and a fourth (of thicker stuff, I would guess?) for the frames, bulkheads, etc. I'll attach the files for the hulls too. You can get the freeware to view and edit them at www.carlsondesign.com.The simple V hull would mean less cutting and joining. The other one looks better (in my opinion) and can float more weight with the same amount of plywood.Could instead go with a flat bottom like Wade's.Let me know what you think.Thanks!

Posted by flywoodkb 11 years ago