Grid Tie and Induction Motors

Yes, I know it's nearly 3am on the east coast... but and idea struck me. So the idea is to feed small amounts of mechanical power into the power grid. Not necessarily run the meter backwards, but supplement power consumption.I've researched grid tie inverters - which are very expensive. For those wondering, a grid tie inverter is feeds mains power back into the grid by syncing phase angle and phase (no dead shorts :) ) and applying slightly higher voltage. They are very efficient and really not within a college student experiment budget :pSo I was thinking... Rather than go from mechanical to DC to AC to grid - go from mechanical to AC to grid VIA an induction motor. As a proof of concept, use a DC motor + battery to turn an induction motor. Plugged into the grid, in theory, should apply current. Oh, but the phase you say? How do you prevent a dead short?"I've thought of this -- before applying mechanical power - have the grid bring the induction motor up to speed. Then try to turn faster (apply a torque) with the DC motor, for example. In theory, the amount of extra power put into the grid will be related to the slip angle of the motor - which will also control the speed of the input (so you can't go over speed by too much).Keep in mind that this whole battery business is just a proof of concept sort of thing - I'm not talking perpetual motion or any hohaa craziness. In the end, the final mechanical input will be around 200 watts. I expect this to be very low efficiency (likely 50%ish), 100W isn't an answer to the energy issues - but it's an experiment. It's also not going to come even close to driving the meter backwards, but it should run (as supplement) my laptop + two to three 13w CFL's :DI think the theory is feasible -- the inspiration comes from flywheel driven UPS systems. An induction motor is driven while mains power is on to keep a flywheel in motion. When the power goes out, the FW drives the motor and feeds to local grid.I'm thinking of using a "low" rpm induction motor.... If I recall, ceiling fans are 16 pole? So that's 60Hz2*2/16=450rpm... Add ceiling fan motor to the list of things to hunt for :) Looking at the one above my head, it looks like it even has a nice bolt pattern for some sort of pulley shenanigans :DCan someone either throw some ice water on me and slap me for being an idiot -- or let me know if I've found a boat to Valhalla.Oh, and my apologies for dancing around the "mechanical input" details.... There's a reason for this, I promise :) In any case, insight and information is appreciated :)

Posted by trebuchet03 11 years ago


Make a Tie

Does anyone know how to make a tie? I'm planning on going as Slenderman for halo-ween, and I've borrowed my entire suit but I know nobody with a plain black tie. I'm a very poor college student (it's ridiculous) so any help would be great!

Posted by IGETSBORED 6 years ago


water rockets

Would anybody like me to post a Instructable showing how to make a clark cable tie water rocket launcher look at this image for a example;

Posted by rocker9455 11 years ago


FISH BONE IS LIVE!!!

Hey everybody Fish Bone is live! It’s updated to show its quick release feature. I hope you think it’s cool enough to tell your friends about. Of course I’d be thrilled to have you as a backer. Thanks a million. Brent Kickstarter Link http://www.kickstarter.com/projects/699604098/fish-bone-knotless-gear-tie?ref=recently_launched

Posted by Mrballeng 5 years ago


solid state relays

I have four, 5A, 280V solid state relays. They are activated by 3-8V. I need to tie them together so that I end up with a total of 20A. Do I tie them in series, or parallel? Also, do I tie the inputs in series or parallel so that there is one input? Thanks.

Posted by gimmelotsarobots 8 years ago


Star wars X-wing vs. Tie fighter help

Hi, I'm trying to run the game on windows vista 32 bit and It wont load and I need help!!!!!!!!!!

Posted by builderkidj 7 years ago


Want to c ontact the guy who has done the Tie altering thing ... but

There is no way on here I can find to make contact with other members. Either if the guy in question can contact me through the owners please or someone can direct me to how to contact other members ... either would really really be helpful for me (and this ace site too). Thanks, M

Posted by Chav-tie-guy 8 years ago


my new instructable please come check it out!

How to tie handcuffs ---Cameronkcheck it out please!

Posted by Cameronk 11 years ago


Valleyschwag Hoedown

Some of the Instructables team will be at the Valleyschwag Hoedown tonight in San Francisco. If you're there, be sure to introduce yourself. I'll be easy to recognize -- look for the guy in a green tie.

Posted by ewilhelm 12 years ago


How to limit A/C current draw from gird and draw power from secondary grid tied solar inverter ?

Micro grid tie inverters are an excellent power source and can be linked together to generate energy, however they do not function when grid is down, this is for the safety of line workers. In a real world scenario I want to ensure that all power is drawn from the energy produced by the micro solar inverters as the primary source while it can produce power and not from the grid which will act as a secondary power source, this will require some sort of current limiting solution from the grid without reducing the voltage to keep the inverter working.   For the safety of line workers I would like to have an automatic transfer switch which will have both the primary power source from grid and a tertiary inverter backed battery backup so that when the grid is off, the power is drawn from the Inverter and there is no power fed back into the line keeping lineworkers safe and since pure sine wave produced by the inverter can activate the grid-tie inverters and it should theoretically increase the VA of the UPS to the size of the installed Grid-tie micro inverter capacity, the automatic transfer switch should take care of switching between grid when power is on and to the backup inverter when power is off.  TIA for any advice in this regard !

Posted by Ruben GeradM 2 years ago


Tying your shoes.

I wanna know how to tie you shoes cool.I've seen people with theirs with like only the little ends sticking out.no knots. how do i do this? i wanna do this to my nss shoes.

Posted by JesusFreak 11 years ago


PDF-DL is somehow corrupted

I just tryed to DL 2 PDFs of instructables and they didnt come as expected... Stuck at 99%. So i canceled and redid them... See attrachment for result. Canceled again and retryed again, same result... The URLs of the 2 downloads: https://www.instructables.com/pdf/Personal-Mushroom-Farm/Personal-Mushroom-Farm.pdf https://www.instructables.com/pdf/Fathers-Day-DIY-Embossed-Leather-Luggage-Tag-Tie-C/Fathers-Day-DIY-Embossed-Leather-Luggage-Tag-Tie-C.pdf Firefox 29.01 15.5.2014 23:15 CET (GMT+1+DST)

Posted by Orngrimm 4 years ago


Why are there 21 finalist in the Teach-Me-Fast Contest

There where supposed to be 20 finalist and now that they have removed the rest of the videos from the contest home page it is showing 21 finalist. Was there a tie in the voting?

Posted by Deathstick 9 years ago


Noose

So, I've heard from a few people that it's illegal to tie a hangman's noose...and that having 13 loops is illegal from others...what is it really? (I live in FL, if it's state specific) Also, why am I not emailed about a new replies to my topics any more?

Posted by Weissensteinburg 11 years ago


New blog covers clumsy hacks

There are elegant fixes and there are the not-so-elegant fixes. A new blog called There I Fixed It covers the latter with some creative and largely dubious solutions to problems. Check out the link for more, but I did enjoy this one which makes a spoon out of a zip tie and some duct tape. There I Fixed It

Posted by fungus amungus 9 years ago


Tech Poetry/Haiku

This thread will be dedicated to Tech-related poems, or poems of any sort... just tie it into something Instructables-related, somehow...Here's my work of art!Batteries...It seems as if I'm always waiting....waiting for the batteries to chargewaiting for the batteries to chargeand waiting for the batteries to charge again.It's too bad I'm never waiting for the batteries to die,there seems to be much less of that.-Josh Gordonson

Posted by T3h_Muffinator 11 years ago


12VDC to 6VDC converter

Hello all, I'm new to the forum but I love the site and have been inspired by it for a while now. So, I'm working on a project to do GMRS radio communications between my wife and I between our motorcycles. The radio and headset part are pretty well taken care of but the radios don't natively accept vehicle power - only batteries. This is a bit of a bummer if you're on the road for a couple of days or more so I want to tie them into the existing 12 volt power on the bike. The radios have no plug for this but I'm assuming if I can knock the bike power down to the 6 volts normally delivered by the 4-AA batteries, I should be able to tie that in to the terminals in the radio that normally take the battery power. So, what is my best option? Hack a cellphone charger? Build from scratch? Size is a factor as it will be stored in the tiny glovebox in the tail of the bike. Any thoughts or links to appropriate stuff would be helpful! Thanks very much. -Ryan

Posted by compassrose 10 years ago


Knife concealment??

OK, i was wondering about how to conceal a knife, and i remember listening to Nocturnal podcast by Scott Sigler, and one of the gangsters had a knife in his shoe. i was wondering if i could hide a knife in my shoe like this:1. put the knife under that removable pad in the shoe.2. cut a hole in the back of the shoe that looks like this:|..................... | |_ _ _ _ _ _ _| |......................|dont mind the periods, they are just place markers.3. tie a string (fishing line) to one of the holes in the back of the handle, run the line through the above hole in the back of the shoe. 4. drill a hole in a quarter and tie the string to the quarter, then stick it in your pocket. when you need the knife, grab the quarter from your pocket, lift your leg with the shoe and knife, then pull it out. the way you cut it, the flaps will open and the knife will slide out, but will stay closed all other times. could someone please make an instructable on this, or tell me if it would work by testing it out?

Posted by A.C.E. 9 years ago


Variable DC input to a clean AC out put

So here is what I am trying to accomplish. I am trying to take an old Jacobs wind turbine controller that was designed for a grid tie application and make it off grid. There is a 3 phase "wild" ac input from the turbine that is rectifyed but not clipped by the internal SCR's to variable DC (40-180 volts). The sensing was designed to tie to the grid and power sync'd to line power and freq then exported or imported depending on demand. What I would like to do is build a Variable Dc input inverter that will put out a pure sine wave 120/240 vac split phase. Thus imprinting a usable power out put and allowing the cap/choke inverter to do its part. The design need not handle much power as it is only used as an imprint to regulate the power through the controller. If anyone had any idea on a build for this or a manufacturer that is producing such an item I could really use some ideas. Thanks

Posted by nbrooks 7 years ago


time safe circuit

I'd like to make a time locking box that is equivalent in function to this:    http://www.thekitchensafe.com/ I was wondering if there's anyone out there that would be willing to draw up a circuit for it as electronics is not something that I know how to do.  I could do it with arduino but I don't really want to tie up the board that way.  I assume it uses solenoids to operate.   I'm also open to any other ideas/advice people have.  .  

Posted by csiebe 3 years ago


Instructables for sale (updated).

After a number of requests, I am now selling two of my recent instructables on my Etsy shop: Both my Serenity Suncatcher and The Mule are now available as "flat-packs", packed along with illustrated assembly instructions. UPDATE - I have also added model X-Wings and TIE Fighters to the store! Since we're talking "Etsy", are there any of my other laser-cut projects that you'd like to see available?

Posted by Kiteman 2 years ago


Need help with a prank (filling up 38,000 12in ballons)

As a prank at my school i and a group of friends are going to fill the ceiling of the school with 38000 12in latex balloons We already have a bulk balloon and helum supplier the only thing is that it is going to take a lot of time in order to inflate and tie all those balloons i saw this https://www.instructables.com/id/Balloon-tying-jig/ and thought this might help but stil

Posted by markomo531161 6 years ago


Help me at "for" command (Batch/CMD)

Can anyone help me? I've got a problem with the "for" command. I can't include decimals (like 0,1). Here's the code: @echo off :Start cls echo. & echo. echo Let's play a game! It's called echo NUMBER! Type in any number echo between 1 and 10: set/p "choice=>" for /L %%G in (1,1,10) do if %choice%==%%G goto Add :Wrong echo. echo Choose a number between 1 and 10! ping localhost -n >nul 2 goto Start :Add if %choice%==10 goto Tie set one=1 set /a result=%choice%+%one% echo I choose %result%! ping localhost -n >nul 3 goto Loser :Tie echo I choose 10, too! ping localhost -n >nul 3 echo. echo -=-=-=-=-=-TIE-=-=-=-=-=- echo. echo Press ENTER pause>nul goto Again :Loser cls echo. & echo. echo %result% is bigger than %choice%. echo Sorry, you lose. echo Press ENTER pause>nul   goto Again :Again cls echo. & echo. echo Wanna play again? (y/n) set/p "choice1=>" if %choice1%==y goto Start if %choice1%==n goto End :Sorry echo. echo Choose y or n! ping localhost -n >nul 3 goto Again :End exit The problem is at line 9: "for /L %%G in (1,1,10) do if %choice%==%%G goto Add" With (1,1,10) the sysem can only recognise Integers. So, if you know any way to solve that problem or to make the code more compact, please tell me :P PS: I'm from Brazil, so I'm sorry if there are any grammar mistakes.

Posted by Tetheu98 5 years ago


We Need an 'Ibles Currency.

Most large bands of people have their own currency; E.G.: Countries "unions" of nations Disneyland pirates (maybe) ect. as a large band of internationally based do-ers, we need a currency to tie us together... this could be sold as instructables merchandise, used as a prize, or even used for inter-instructables transactions... I've been playing with Galvanic etchng, and this would only take two plates for each side. anyway, WHAT DO YOU THINK?

Posted by gschoppe 10 years ago


Smoke bombs that explode on contact --- contest

I have decided to make a contest to see who can truly make a smoke bomb that will explode on contact with the ground no madder what part of it hits the ground. it will be graded on - ingenuity - ease to make - artistic beauty (yes it does count [just not as much]) - best instructions - safest (this grading spec will only be used if there is a tie for first place) - creativity and finally - how destructive it is you have until the end of August to turn in instructables to the destructables group

Posted by master-of-chaos 11 years ago


Contest: Make Art From Starbucks Junk

Finally a reason to stop feeling guilty about my Starbucks addiction. I know I should be making my own coffee at home (and I do), but I can't deny my love for a double-tall latte. So what do I do with my stack of used cups and lids (rinsed for recycling!) and all the extra caffeine raging through my veins? Build a TIE-fighter, of course!Wired is hosting a Starbucks art contest. The idea is to make something cool and interesting exclusively out of Starbucks junk (cups, stirrers, drink holders, etc). Tape, glue, and string are allowed. You might consider multiple coffee-runs, or just ask the manager to sell you a bunch.As something resembling a prize, Wired will feature their favorites in an online slideshow. Fame and notoriety - it can all be yours! (Of course, we always recommend cross-posting on Instructables.)To inspire you, Wired posted this incredible TIE Fighter, made by Wired photographer Dan Winters. I don't think a Star Wars theme is required, but it almost certainly helps.Enter at Wired. May the Force (and the nondairy creamer) be with you. via MAKE

Posted by scoochmaroo 10 years ago


Which 'able can I use to launch a rope into a tree?

I recently cut down a tree for the first time, and though nothing damaged and nobody got hurt, it fell in the exact opposite direction that we wanted it to. Part of the reason this happened was because we decided not to tie a rope to the tree, partly because it was very, very difficult to get the rip UP INTO the tree (by tying a hammer to it, and throwing). I saw the net gun 'able, and got me thinking, there's got to be a way to launch a single rope, maybe 30' or 40' up, with some sort of weight on the end, into the top of a tree. It would need a weight heavy enough to drop the end of the rope back down to the ground, in order to tie the proper knot on it, to secure the rope to the tree. I suppose fishing line could be used if it's not strong enough to launch rope, and the rope can be tied onto the line and pulled over. So is there an instructible I should use, or which one should I modify? I have compressed air and proper tools, but I'm not engineering-minded enough to come up with my own (nor do I have the time and money for repeated trial and error).

Posted by oakback 9 years ago


Upcoming Summer Sewing Contest with Singer

It's getting hot in herre! So sew some summer clothes*! It's time for another sweet contest with our friends from Singer!  You know what that means - you show off your mad talents and we give you awesome prizes. So start planning your new summer projects, and get ready to hit the ground sewing! *projects need not be limited to items of clothing.  clothing was referenced merely for cheap Nelly tie-in.

Posted by scoochmaroo 8 years ago


Help: Attatching Trolling Motor to PVC Framed boat

Well I am in the process of finishing my PVC John Boat and I need to figure out a way to attach my trolling motor to the back. I was thinking of attaching a 2x4 or 2x6 piece of wood to the back but the only way i could think of attaching it was to drill a few holes in the wood and zip tie it to the back. So I am hoping one of you could give me a suggestion on attaching it securely. Thank you in advance I cant wait for the boat to get in the water with a motor and my instructable to be finished aswell.

Posted by zmatt 11 years ago


In JUST 20 minutes.....

In just under 20 minutes I will be leaving my home to take my wife to her niece's wedding. For her, there are mixed feelings, the niece is a bit young, but there is also joy in that it may work (do I sound pessimistic? :-) . For me, I enjoy the reception, free food (sigh, I am just soooo shallow, ain't I? ). I do not consider it fun to put on a suit and tie in 99 o F weather with nearly 100% humidity out there.....oh well. I am being summoned, I must depart...for now....

Posted by Goodhart 9 years ago


Doctor Who goes "Fifties Nerd"

Matt Smith's new look as the 11th Doctor has been revealed - tweed jacket, bow tie and rolled-up trousers and black boots.Filming for the new series begins on Monday, with the programmes scheduled for broadcast in the UK next Spring.Also in the photo below is Karen Gillan, who plays the Doctor's new companion Amy Pond.Related links:BBC storyBBC's Doctor Who pagesMatt Smith on IMDB[http://en.wikipedia.org/wiki/Matt_Smith_(actor) Matt Smith on Wikipedia]Karen Gillan on IMDBKaren Gillan on Wikipedia

Posted by Kiteman 9 years ago


HPV Frame SNEAK PEAK!

Oooo baby! Tacked togehter. You're butt.... 7 inches off the ground. Ground clearance - ~3" It's missing a few components though - like a chain and a tie rod (for Ackerman steering). But that's a Nexus8 Hub in a 650 rear wheel (and we're working on securing a 700C if we can make a drop out adapter to fit the shimano road derailleurs). And yes, that's a Carbon Fiber Seat which just so happens to mold to my back perfectly - and accommodate my giraffe like neck (I think I'm the tallest sitting down because of that) :P

Posted by trebuchet03 11 years ago


2 uln2003 stepper drivers linked

Lots of build yer own stepper motor driver boards here. CNC also but, I  have these little ULN2003 driver boards that come with the small BLJ steppers...you do too.  I've seen linking 2 SF easy steppers together but, those cost. anyone know how to tie these cheapy driver boards together-to drive 2 stepper motors with few  /fewer pins from the microcontroller to drive 'em? would some sort of shift register arrangement be in play here?

Posted by schel 4 years ago


"Hack" An Archos 704?

My aunt has recently gave me this Mobile DVR player that was from another friend. I guess at some point it was a Herts thing for a rental. But anyways, she gave tie to me to try and find a way to put movie's on it. On the Archos site, it has a pick where its a blue screen with movies as one of the options. But as you can see from the pics, its like some Nickeloadeon thingy... Theres also a way to hook it up to a computer, but I'd like to know if I were to get one, could I put the regular "software" on it? Here are some pictures.

Posted by wolf555hound 9 years ago


Power 4 camera flashes with a battery 12vdc to 6vdc conversion

I would like to provide power to four camera flashes with a deep cycle battery. The flashes run off of 4 AA batteries (6VDC). Can I wire two flashes in series (6 volts each) and tie them directly into the battery? Or would I need to use a power transformer to step down the 12VDC to 6VDC, then have all four flashes running parallel to the battery? It appears that each flash needs about 3 amps to charge their capacitors. The battery I am using is 12VDC and 12 amps. Thanks

Posted by letitthink 9 years ago


Old cardboard box wins major "green" prize.

Want to get credit for an idea that is older than you are?Simple - give it a cool name and tie the idea in with trendy green terminology.A cheap solar cooker has won first prize in a contest for green ideas.The Kyoto Box is made from cardboard and can be used for sterilising water or boiling or baking food. It's just a basic solar cooker - cardboard, black paint and aluminium foil - but discussing it in terms of sustainability and carbon credits makes it worth 75,000GBP and potential mass-marketing contracts.(Cynical? Me?)(Story)

Posted by Kiteman 9 years ago


Fun Fire Toy

This is a fun toy I made in the Boy Scouts to scare the younger kids. First take three pages of newspaper, roll them up, and tie it tight with a long thin rope. Then take a candle, light it, and pour the wax over everything but a small edge of the rolled up paper. Light the one end, and if done correctly, the 'toy' should last a few minutes. The long rope gives you the ability to swing it around in the air, and scare people with it. I am not resposible for any burns, forrest fires, or any other type of injury or fire. Use at your own risk, and keep water handy, just in case.

Posted by invisiblepaintballer 11 years ago


Revver problem

OK so I've been trying to get a video that I have put on revver working, but to no avail. I have tried looking here but to no avail. The problem is I get a URL nothing like the one in the instructable above. So I shall post the code and a direct link to the video here. I would like it very much if one of you could please pose some code that would allow me to use it with the embed feature when you create a video instructable. Thanks in advance guysDanHere is a direct link to the videohttp://revver.com/video/1137086/munter-hitch-how-to-tie-and-belay-with/Here is the Flash embed code

Posted by F1X0R 10 years ago


Summer Camp projects

Hey everyone I am the art coordinator at a summer camp in America and im looking for some inspiration for some projects outside of the traditional camp crafts. SInce instructables is a hub for creatives I wondered if anyone either had some exciting projects that they have perhaps taught at their summer camps or to children from 8-17 years?  Also-tie dye is obviously a huge activity at any summer camp, for the past few years I have been using Dylon dyes but find they tend to loose their colour after a short time, does anyone having any recommendations of a better product that can be used? Thanks for any help and advice its really appreciated!

Posted by craigsummercamp 5 years ago


Need help - making a pedant lamp

Hi, I'm new on the forum so please forgive me if I will make some mistakes..English is not my native language. I want to make a pedant lamp for myself, something like that in attached images. Maybe someone can figure this out how it is made? Need a frame or something? First I was thinking that inside is a roller but now I do not know how to go about it.. And How to tie these folds... I watch a tutorial of Ikea Kappa lamp and there was used a frame. I have a pcv and others materials so I wanna use them has anyone an idea? Thanks For your help :) :)

Posted by wiolaw 4 years ago


holiday inflatable - giant floating (indoor) balloon

 We have a Gemmy inflatable at work (a giant Homer Simpson -- about 8 feet tall) and we were wondering if we could somehow fill it with helium and float it on the ceiling. We're concerned that it's too permeable (when the fan is not going, it deflates FAST).  One idea was to coat the inside with polyurethane (turning the fan on to blow it throughout the balloon) but that seems like it wouldn't work very well (too patchy), and could make it too heavy. Another option would be to take a bunch of balloons, insert them into the Homer, and then inflate the smaller balloons (and tie them off). Any other thoughts or suggestions?

Posted by jeffreality 8 years ago


US Army Uniform Info?

    I recently purchased a US Army Corporal's uniform. I have the full uniform, excluding the belt and the tie. I have some questions I hope somebody can answer. I bought it at GoodWill, (a thrift store) so it is missing a few pieces. Some of the things I would like to know about it are: -What is it missing? -Where can I find these things? -When was it made/in use? - Why does the armored division patch not have a division number? -What are the numbers on the inside of the collar? -Where can I find more information on this?      Any information is helpful, thanks in advance. -Hobbs

Posted by ItsTheHobbs 8 years ago


Please looking for recommend on the best bike light DIY on Instructables!

Hello, Subject pretty much says all. I'm getting dizzy going through all the bike lighting projects here on Instructables :) Could anyone recommend a good setup that is : 1) Relatively low cost 2) Easy to do 3) Bright 4) Uses standard AAA or AA type batteries (already have these and great charger) 5) Possibly shared system for headlight and flashing tail light This is on a newer urban type bike, so I'd like something I can tie down pretty well. Been using the old hose clamp and 1 LED flashlight for a few years. It's not very good. Thanks for any pointers!

Posted by Sylvester2009 6 years ago


GPS Repeater from a Hacked Wirelss Router?

Hi all. I'm building a GPS Repeater. I'm wondering if any one has ever tried to use the LNA on the Xmit side of a wireless router to amplify and re-radiate a GPS signal? I'm still in the research stage, but I'm thinking I can take the signal from a active GPS USB patch antenna, tie it into the LNA input on the RX side of a wireless router (hack all signals in the router- we are just interested in the power and signal input). Schematics to a router would be great. I have 10+ years in RF, so I know that the Xmit on a router is so not 1.5GHZ range like GPS. A few mods to some componets can ceratinly help turn the center freq of the Xmit. on the router.   What are your thoughts?

Posted by chris23892 6 years ago


Jedi Training Center

I live on a lake and want to put in some fun stuff for fun and training.  Free stuff is a plus...budget is $50 or so.  Must be able to take out of the water in the fall. First idea I had was to anchor some of those (closed) blue 50 gallon barrels so that people could try and stand on them and fight each other.  I haven't tested this out yet...they may be just too unstable.  I also have to figure out how to tie and anchor them to a cinder block on the bottom of the lake so they can just stay there and float.  Any ideas? Other things....log rolling....diy diving board....let your imagination go.  i haven't found any pics or sites on the internet on this topic, so any ideas appreciated. Thanks!

Posted by juliantrezise 8 years ago


Anyone need any of my youtube videos?

I'm going to be using my channel for other things and, quite frankly, I honestly don't want to keep up the more geekish K'nex videos d(^_^d) I'll still be around for a little longer. I won't build much, I get to it like once a month literally, but I'll still mess around most likely until summer. After that, I'm off and probably won't bring my K'nex with but I don't know. If I have the room, could be something to show off I guess. Anywho, if you guys need any specific video, I'll post the exclusive link to that video but otherwise I'm hiding them from public and friends. I'll be keeping up the knot tieing and linerider videos, though.

Posted by TheDunkis 7 years ago


low voltage photoelectric switch for led spotlight

I need help. I am making an led spotlight to mount on the flagpole and light up the flag at night. I have the lights from a 46 led flashlight. I've attached 2- 3.7v Li rechargeable batteries and a solar cell charger. Everything works great, except I want a photoelectric switch to turn light on and off. Right now, it is on a manual switch mounted to the pole. I cannot find and don't know how to build a 3.7v photocell circuit. I've tried 12v (all I can find except for 120v) and they won't work. I need to know what I need to make a 3.7v circuit/switch, and how to tie it in to the existing system. Can anyone help me? Thanks for any input. I am a novice, so be gentle. BJ

Posted by cottnpickr 10 years ago


Instructables Build Day Turns into Pants-less Formal Friday

The last Friday of the month is Build Day at Instructables where everyone builds and documents projects (hence Noahw's flood of awesome slideshows!). My project today was to alter this really sweet Geoffrey Beene pin-striped suit I got at a consignment shop for cheap. The problem was that it was a size 42, so I needed both the pants and jacket taken in about 8 inches, which requires taking the sleeves off. Rachel agreed to help, and pretty soon I was running around the control tower still in my Formal Friday shirt and tie, but with the new pants on inside out as she tried to get them to fit. We didn't finish, and I'll post a full Instructable when we do, but for now I'll let the pictures tell the story...

Posted by ewilhelm 10 years ago


Wiring Multiple Turbines and PVs

Just a little worried... how do ya'll go about wiring multiple power sources together? I have been long under the assumption that your solar array will only put out power of the weakest panel. If I come across 3 different 12v panels, that have differing amperages, and have a wind turbine on a 12v car alternator, that ranges in power output, how can I wire these to make these most effective? Is there a charge controller out there that can manage multiple power sources? Pardon me if this is stupid. I just cant seem to get off the ground with these simple questions. i guess the most effective q to ask is: What do you do to wire multiple power devices of different outputs into a single battery bank/ grid tie system? Thanks so much for all yall's brilliant help. -Luke.

Posted by ineclipse 7 years ago


favorite music artists/bands?

Ok, i just want to do a bit of a survey here, ill just start with my favesfavorite music band:shop boyz- their song "party like a rock star" was awesome, its part one of my theme song. their remix is cool, and is my second part.............favorite music solo artist:i would declare this a tie between Chris Brown and Soulja boy. Chris brown's "kiss-kiss" was tight, especially on the t-pain solo part, his other song was good too...........Soulja boy made the tight song "soulja boy tellem". He also made a little spin- off of the song, which is the song "soulja boy with soulja girl". and his last one "YA!", i liked that one, it expressed his real feelings as a celebrity perfectly........................ oh, and DONT EVEN GET ME STARTED ON THE DANCE....................so what is your favorite song artist?

Posted by DJ Radio 10 years ago