Tennis for two

I built this circuit from the circuit only has 6 pins to input data but my programmer has 10 pins. what do I need to do?

Posted by SuperTails 8 years ago

Two-way Radio for a medium-size community

I have been thinking of building something like a two-way radio except that it should be more like a mobile phone network with the exception of call charges. it will be used in a small environment of about 100 people. I was wondering if anyone has ideas on how to build something like this.

Posted by dhack 10 years ago

I got TWO books!!!!

Ok, so, it was a pretty lame day at work, what with the apogee server crashing, and me being the only one to sort it. There was three upsides to my day, Firstly, my colleague gave me a cool pair of 3D glasses! (which is good, cos now i can see everything in 3D!) Secondly, my local burger king opened again, and i had an extra large bacon double cheeseburger! Thirdly, my book came, along with, MY OTHER BOOK! I knew that i had got into the book twice, which is great! but i only expected one copy of the book! Alas, i am now the proud owner of two copies of the book! So, i have to ask, does this mean i get two patches? did anyone else get into the book more than once, and received two copies? am i one of a kind? - gmjhowe

Posted by gmjhowe 9 years ago

PCBs (2)

I want someone to make me two PCBs, I am willing to pay you and shipping. I can get many different file types, and Drilling is preferable but not required, will pay extra. If anyone wants to be a giant help, you could do it for free?

Posted by 16zzundel5 8 years ago

Castable Clear Acrylic

I was wondering if there was a clear two part acrylic that I could use to pour into a mold and encase a smaller object. I just found my first four leaf clover, and would like to encase it in a clear acrylic cube. Thanks.

Posted by Ora 10 years ago

500th comment!!!

I just noticed I made my 500th comment today! I'm sure no-one cares, and I'm probably spamming, but I didn't know a more appropriate place to post my victory. So there. HAH!

Posted by rocksalt2342 9 years ago

I have 2 accounts and I want to combine them. How?!?!?!

I have 2 accounts for some reason.  I did not create 2 intentionally, but somehow I did.   Is there some way to combine them?!?! Carol Oswald

Posted by kylara70 6 years ago

Can two iPhones (4) be charged with one charger?

If one were to solder together two USB charger cables into a Y (a single USB jack leading to two iPhone 4 charger plugs) would this work to charge two iPhones/ipods, or would it cause issues?  thx! R

Posted by RBrooklyn 3 years ago

What Army of Two mask should I buy?

Hi I was thinking about buying an Army of Two mask off eBay but there are lots of designs, which should I buy? Look them up on Google or eBay, they are really cool!

Posted by LogTrotter 5 years ago

Parachute Cord

How do you join two pieces of parachute cord together? We've tried burning them with a lighter. That didn't work too well. Thanks!

Posted by debrald 9 years ago

Two videos devoted to the spirit of creativity

Youtube poster RinpaEshidan puts up some great videos of walls being painted and repainted several times over and sets them to a nice groovy soundtrack. I find them helpful for when I need to give my mind a bit of a mental reboot. Here are two worth checking out.Do you guys have any favorite drawing/creating videos or other forms of inspiration?

Posted by fungus amungus 10 years ago

Implementation of two way communication

Hi, I'm working on a project where we're working on a tele-operated robot and we are looking to include the ability to have a conversation. We would be looking to use earbuds and a microphone on the operator side and a speaker and microphone on the robot side. Does anyone know how to go about implementing this? It needs to be hands free on both ends as the operators arms are being mapped to the robots arms. Thank you.

Posted by ArnoldM27 9 months ago

My Cycle Two Stroke Engine

Hello everyone, I wonder if any one can help me? I have fitted a two stroke engine kit to a cycle of mine, the thing was running perfect for 220 odd miles then starting stopping and would start again after a few minutes of pedalling. I have changed the petrol mixture and this has seemed to alter things slightly, now it will go but will not rev and only goes to a certain speed then starts kangarooing. When I engage the clutch it will not ideal it just conks out. Could there be something wrong with the accelerator perhaps? Thanks a very frustrated Paul

Posted by Paulygriff 4 years ago

Cant combine my two acccounts

It seems that along the line somwhere i have been given a second login for instructables. this one im on now i can download PDFs and it seems i have full pro membership. the one i can login with my facebook however, i have not got pro membership. how do i combine the two? the facebook login one is called Joypad570

Posted by joypad 6 years ago

Short absence

Hey guys, I'm leaving for France this monday and I'll be gone for about two weeks. So if I won't reply that's why =D I want to wish everyone a great holiday and I hope I'll talk to everyone once I've returned. -AUG-5OM3-

Posted by AUG-5OM3 6 years ago

Vacuum Tubes

What kind of vacuum tubes are these? What can they be used for, etc? I found them from an 80's TV.

Posted by tinstructable 7 years ago

Two Hands Project First Flight

And we're off!At 3:30 this morning I began making the WOD's [waffles of departure] and gathered my friends. This was it, I was having my goodbye breakfast. We sat around a giant LED display that was playing tetris on autopilot like we were at a sports bar and called the AI engine out on it's bad plays. Choice is the name of the game in AI, how do you make the optimal choices with limited knowledge about the present and doubt about the future?I drank my cocoa considering the choices I've made to hit the skies and shoot a documentary on hackerspaces, and it filled me with exhilaration. What could be more critical than doing something that gives you the energy to do the thing you want to be doing? There has to be this ignition point to push the chooser into action, creating this snowball of awesome gathering steam as it goes downhill. Rather than chilling with Sysiphus on his uphill downhill journey. Feeling energized, feeling pumped, I called my friends around me and we ate to good health and poured generous libations of yogurt smoothie [Spilled the contents of the blender on the floor].

Posted by lamedust 8 years ago

lift table from old adjustable bed

Have two old electric linear screw actuators that work great. I Need a lift table but can't figure out how to put it all together. I don't know what width or type of metal use for the lift or the bolt hinges???.  Does it have to be a scissor lift or can I keep the actuators where they are at each end of the bed, wire them to work together and make a lift that way?  I need an affordable way of doing this and it only needs to lift to about 500 lbs. from 17 inches off floor to 30 inches off floor.  All framing is angle iron but seems heavy duty. Anyone's help if greatly appreciated as I just cannot afford to spend $ 1000. + on an electric massage lift table. The pic is after everything but the motor/actuators were removed. Thanks Deb

Posted by DebMaudie 2 years ago

2 Years!

Not that anyone cares, but I just realized that I've been a member of Instructables for 2 years now! It's been a while since I've written a completely self-serving post and I just thought this was a personal event worth noting. So.... how long have you all been members? P.S. I haven't been on here too much recently, but I'm liking the new editor. P.P.S. It's easy to do crazy formatting!

Posted by Gjdj3 8 years ago

Knex Ball Machine 2

Hey guys this is really old I should of posted this ages ago. I finished my second big ball machine called: Project JellyFish about 4 months ago now and I filmed it put all the clips together only for my mum to say it contained too many pictures of our house so I deleted it off YouTube. I have actually made a third machine that I am hoping to post under the name american coaster or something similar Fr-Pa-Co

Posted by Fr-Pa-Co 6 years ago

MOTOROLA NTN7143 Two Way Radio Batteries

New Replacement MOTOROLA NTN7143 Two Way Radio Batteries buy from usually comes in a discharged condition and with a very low capacity. It is generally recommended to fully charge new battery packs before use. The MOTOROLA NTN7143 battery pack needs to be circulated (fully discharged and recharged) 3 - 5 times to reach its optimum performance.

Posted by asdfmakewish 7 years ago

Paper two stroke hydrogen engine

 Ok so I have this crazy idea to make a two stroke engine out of paper that runs on hydrogen and well ive allready built part of it just the piston head and cylider and stuff but if i lined the inside of the cylinder with tin foil would that be enoth to keep the paper from burning? and so ya anyways the engine of i have made allready is very sturdy each peace is 10 sheets of paper or more compressed for over 24 hours  now the compression im not two worried about because its more of the sheer pop of the explosion that will push the piston down well i guess thats how it is anyways but if the gas ignites anyways with oxygen why have compression  for this anyways because the explosion is going to be soooo small anyways that it wont really matter much.  the overall size of the engine is about almost 2" tall by about 1" wide on the widest part the bottom . So um I know by now im classified as "CRAZy" but that asside can i get some opinions and ideas plz. thanks MRN

Posted by mrn 8 years ago

Two Hands Two Legs and lots of walking in SF

And we're off! The documentary tour of hacker spaces in America starts off in Boston with an early breakfast:At 3:30 on September 8 I began making the WOD's [waffles of departure] and gathered my friends. This was it, I was having my goodbye breakfast. We sat around a giant LED display that was playing tetris on autopilot like we were at a sports bar and called the AI engine out on it's bad plays. Choice is the name of the game in AI, how do you make the optimal choices with limited knowledge about the present and doubt about the future?I drank my cocoa considering the choices I've made to hit the skies and shoot a documentary on hackerspaces, and it filled me with exhilaration. What could be more critical than doing something that gives you the energy to do the thing you want to be doing? There has to be this ignition point to push the chooser into action, creating this snowball of awesome gathering steam as it goes downhill. Rather than chilling with Sysiphus on his uphill downhill journey. Feeling energized, feeling pumped, I called my friends around me and we ate to good health and poured generous libations of yogurt smoothie [Spilled the contents of the blender on the floor]. **************Later that very evening I found myself SSFed :: Suddenly in San Francisco:Walking down 17th street passing bodega after fruit market after bodega and suddenly we intersected. The assembly of the Two Hands Project was complete as we fortuitously intersected directly at the gates to NoiseBridge nouveau. An odd bunch from Chicago/Alaska, Michigan/Boston, and Florida/notsureyet we were meeting for the first time since the inception of the project, and we were ready to rock. Having almost no equipment after meeting up with Mitch and experiencing excellence and consensus in action we go to Sadies house (what a great lady), stay up late, and work all night. Starting the tradition that will continue to this day. Hopping on Paul's tiny folding bike I run across town gathering Mic's, video cameras and miracle fruit. Meeting up with the crew dazed and confused walking around town with tons of gear on their back we were glad to have a brief breakfast with SkyT, Mitch and FBZ before checking out the reMakeLounge.At the reMakeLounge we met up with Inna who saved our lives, 300 times. With her help we were able to talk with the folks at the Internet Archive where we met up with Mang. She drove us over to Oakland, back to SF, and finally back to the Airport. If there's one lady that made the SF leg of this trip possible it was Inna.Mang and his roommate Mike have an awesome Hacker Space appended to their home. We were given a rare peek into Radish Research which they opened up to us. It's been amazing how much people have opened up to us this trip! I'd like to take this moment to thank you all for your kindness, generosity and ability to withstand the rush that is The Two Hands Project. Hee!Posting would happen more frequently if it weren't for the emergency nature of this trip. But keep an eye out, I'll be posting shorter things more regularly I hope._Bilal GhalibAnd now, a brief video of the first leg of our trip:

Posted by lamedust 8 years ago

2 Different dreams in the same place?

I just realized that I had a dream this morning in the same location... twice. By that, I mean (in a gaming sort of fashion) you started playing a game, then halfway through, your mom called you and you had to save your progress. You then resume to your most recent progress in the game and continue playing. It felt something like that, and I can't explain how that happened (also given that I had the first one weeks ago). Out of curiosity, has anyone else experienced such a thing? And if so, what are they called (if at all)? ***It's been a while since I've done anything in Instructables lately.

Posted by nutsandbolts_64 6 years ago

ARMY Helicopter Film Shoot

COMING SOON My latest film project is a Helicopter crash/ Behind Enemy Lines sort of ordeal I do not want to give away too much, BUT I will bee posting how I built the Military helicopter rig I used to flip my actors upside down in the crash scene. So I will be building a 6ft x 5ft x 6ft interior of an Army military helicopter within the next few weeks, just give you guys something to look forward in seeing, since I've only posted one instructable a long while back. ~Miranda Pechon

Posted by HalloweenJuNkY 7 years ago

230vac extract fan speed control - help

Hi I'm just in the process of refurbishing the bathroom of a flat I bought. It's all been plastered out already and I realised I've no extract! So, I created a plenum at hi level and mounted a fan under floor and have ducted it out. I want to run the small AC extract fan 24/7 at low speed (kinda tick over speed) and then switch it to hi speed when either the humidity goes up (cos the shower is running) or the light goes on (assumes someone's using the WC!). I can't get to the lighting wiring so I'll need to sense that remotely. I can fit a humidity sensor in the duct work. I've tried everywhere to find something suitable with zero joy. Is anyone here able to point me in the right direction?

Posted by ListysDad 6 years ago

Full Duplex Wireless Audio

Hi, I'm in need of some help with a project I'm working on. I'm looking to build a handsfree two way audio communication circuit but I've been getting very confused when looking at material online and don't know where to look or how to even start. I've been looking into full duplex communication but I have no idea how to implement this in a circuit I could build. I'm confused as to if I would need a microcontroller (probably an arduino) or not and what transceivers and antennas to use. If anyone could show me where to look or help me get a starting point your help would be much appreciated. Thank you.

Posted by ArnoldM27 6 months ago

Results for TGKTR2

Here are the results, sorry it took so long, but that wasn't my fault *cough*Dsman*cough* +P.4 Moving On:I_Am_Canadian86Viccie.B199384Jollex81S0lekill3r774 that are outDutchwarlord76Knexguy72Bakenbitz70DutchjNo EntryCongratulations to all!

Posted by jollex 9 years ago

2 to the 2 to the 22 power

I recently took the pamel (pennsylvania math league test thing) and for one of the questions it said: rearrange the numbers 2 in anyway with mathmatical symbols to get the highest number possible. I though the answer was 2 to the 222 power The answer was 2 to the 2 to the 22 power Is this correct? I thought that you would multiply the powers to get 2 to the 44 power, now have the power to the power and get 2 to the 4194304 power.

Posted by guyfrom7up 10 years ago

Yabasic (for the PS2)

I found Yabasic as an extra for a PS2 demodisc, and i recently dug it out from my Ps2 pile. it is a fun and simple piece of software for creating small programs, in which you type a command (eg. print, input, goto, beep etc.) and then a piece of text. here is a code for a simple number guess program, sorry for mistakesREM Number guess gameprint "I am thinking of a number between 1 and 50, try to guess it!"input a$if (a$>13) thenprint "your number was larger than mine!"goto inputendifelseif (a$<13) thenprint "your number was smaller than mine!"goto inputendifelseif (a$=13) thenprint "My number was 13! Congratulations, you win!"Feel free to edit the prints, and the number doesn't have to be 13. there are other things involving string variables and other commands. heres one called identitiy finderREM Identity finder programPrint "What is your name?" :":input a$Print "How old are you, ",a$,"?" :":Input b$Print "And where do you live, ",a$,"?" :":Input c$Print "so your name is ",a$,", you are ",b$," years old and you live in ",c$,", correct?"Pause 5Feel free to add more string variables, just add them as d$, e$, f$ etc.anyway, post coding for more yabasic programs, and use the stuff above!

Posted by The Jamalam 9 years ago

Oh No!!!! I am going to be gone for two weeks!!

Oh No!!!! I am going to be gone for two weeks!! I am going on a camping trip with my family to the middle of no where, and that means no internet for two long weeks! AHH! I hope I will live before I come back to instructables! Well I don't know, if there is internet, I will be inactive... So, good bye everybody, I will be leaving instructables on July, 26th, 2008...

Posted by Plasmana 10 years ago


Right, Firstly im not sure if this is in the right part of this forum. Basically i want to make (or buy) a two way wired phone system and other end needs to ring upon picking up my end. I've searched here and online for something which will do this and i rememebr having a set of these when i were a kid. Now i have kids of my own i have built a wooden playhouse at the bottom of garden and would like to be able to ring from there to the house with only a pick up of the other end or something equally similar. IS THIS EVEN POSSIBLE! If anyone can post me details of how to make this or a website from which i can buy it from would be great been searching for weeks. Thanks

Posted by dirty-monkee 6 years ago

Project Dos: The Jamalam's second k'nex ball machine!

Here it is. 2 days solid work and this is what you get. Project dos. Dos meaning 2 in spanish, it is an apropriate name. It has 3 tracks, and stands over 3 feet tall. (Maybe this should be my 3rd ball machine ;)) but anyway, watch the video, enjoy!Also, I won't bother posting unless you want me to, so If i get 10 requests I will, if not I will leave it.EDIT: The machine is posted! here it is!

Posted by The Jamalam 9 years ago

Instructables Goes Indoor Skydiving

The Instructables team has been going strong for a while now - some of us have even been with the company for over two years! Eric took Rachel, Eric N and me to iFly, an indoor skydiving facility, as an anniversary gift. Flying is awesome, and now we want to build an indoor machine of our own! I'm going to publish all of my Instructables in flight from now on.Here's video of the first flight we did where we were just learning how to stabilize ourselves.Here's video of the second flight we did where the instructor took us up and down, spun us around, and let us move around a bit on our own.**music NOT from noahw**

Posted by noahw 9 years ago

Mobile site has no short term memory

The mobile site, when viewed on an iphone, wants me to add instructables from my home screen, even when I've launched instructables from that link I added to my home screen last time I was here.  Also, once I've closed that little box, selected an instructable to read, and started in on it, the page brings me back to the top once it finishes loading. I may be half way through by then. Leave me where I was please.  Also, while this next nit is basically self fulfilling, once I've written a post, why can't I instapost? Why must I preview? This isn't my first time on an Internet. I can read it here on the edit screen. If I've inserted pictures and fancy text and whatnot, I might want to ppreview for formatting, but this is just text. Instapost! (I almost hope I have an accidental carriage return or a line of all caps that I would have caught in the forced preview. That would serve me right).

Posted by gotcha640 5 years ago

Johnhall14's Tactical Shotgun v2 Mods and Review

Whatup! So I built Johnhall14's Tactical Shotgun v2. It was pretty ownage, but there were a few things that popped out at me as annoying, but easily fixed/modded: -Underbarrel shotgun's trigger guard kinda got in the way and was flimsy -No sights -Handle guard broke a lot; got annoying -Pin pull was obstructed by lots of yellow connectors -Trigger was a little short (imo) -Pin got stuck on pin block when being pulled back Now, these are all the negative things, but in the original gun, the positives outweigh them. Here are all the things I love about this gun: -Powerful. This gun is actually really, really, powerful. -Looks pretty nice -Mag is easy to use and looks cool -Underbarrel shotgun is awesome and really fun to shoot -Shoots 3 bullets per shot, with a mag. Now that's firepower. -Great range for a shotgun: 35-50 feet So I decided to mod the gun and fix all the things that annoyed me. Here's what my mods have done: +No more underbarrel shotgun trigger guard +Simple sights (better than nothing) +Reinforced handle guard +Pin no longer obstructed, which actually makes the gun look cooler (imo) +Thicker handle (May not be a plus for some people) and sturdier stock +Revised mech so pin doesn't get stuck +Metallic 6th and 7th layers, even on mag +Modded mag that shoots one bullet at a time +Easy to grip pin This gun, after mods, is probably one of my favorites that I've ever built. It's powerful, it's got some serious firepower, and it looks awesome, which can't hurt. Props to Johnhall14, this gun is awesome! ANYWAY, check out the video of this gun in action! DISCLAIMER: I edited the video so times in between reloads were cut out. The ROF shown is really inaccurate, and it's much slower than you're about to see. The ROF is still good, but it's not this fast. More Mods/Review -  Red's Reliable (R3)  

Posted by FlyingFish10 4 years ago

2500 Replies for the Green topic section!

This is kinda pointless, but the Green topic section under Community recently hit 2500 replies!

Posted by Flumpkins 9 years ago

SR-v2 Mods

SR-v2. Minor mods to stock, handle, handle to stock to barrel connections, and slingshot. There are orange connector w/ Y-Piece connections from the handle to the stock, as well as from the stock to the barrel. I will post a picture detailing where if you like. Enjoy.1) Gun2) Slingshot mods.3) Stock mods.4) Connection/handle mods*.*See the small bit on the bottom to the right? It's a bunch of red connectors. Note how it's attached. You can use this to make the entire barrel. It's quite sturdy, just a but of weakness when it twists.

Posted by DELETED_Gilrostwo 9 years ago

Building a sawing-a-woman-in-half box?

I'm interested in building a box to perform this illusion on the relatively-cheap. Granted, there are many ways of performing this illusion; I'd like to build one that doesn't require two women but uses fake legs instead. I don't need help with the fake legs.

Posted by zombies 10 years ago

iPhone Chargers

I have seen many 'ibles on battery-powered USB chargers that say they cannot charge iPhones/iTouches because they require power to be supplied to the data pins. How, then, have I seen iPhone chargers (that work) with only two inner wires - a red and a black?  I recently bought an iPhone charger, so I could cut the wallwart off and use it instead of a USB port in this circuit. However, I have discovered that it only has 2 inner wires, as previously detailed. How could I use a 9V (PP3) battery and a 5V (7805) voltage regulator to turn this into a battery-powered charger? Both of the above questions are ones I would like answers to. Thanks in advance, ~H4ZZ

Posted by __DELETED__ 7 years ago

The worlds most confusing album?

I have a CD by the artist Styx. The album is called Paradise Theater. Read this confusing puzzle thingy:A.D. 1928 = Rockin the Paradise introA.D. 1928 = The Best of Times introA.D. 1958 = Variation of A.D. 28A.D. 1958 = Outro to Half penny, Two penny.??? Why ???

Posted by Flumpkins 9 years ago


ROUND 2 A Knex ball Machine lift IF YOU ARE NOT ABLE TO BUILD THIS DUE TO A LACK OF PIECES OR MOTOR CONTACT ME ASAP Duration This round will last from October 29th to December 1st Requirements Must be able to lift a standard knex ball or ball of similar size. Must lift the ball up at least a foot Must be able to AUTOMATICALLY pick up the ball from a short entry ramp Specifications You may use      knex      tape      string      A motor other than knex You may NOT use      modified pieces      wood / other plastic / metal / etc.      Points system up to 15 points-each judge gives up to 5 points for overall up to 12 points-each judge gives 0-4 points of innovation up to 9 points-each judge will give up to 3 points for looks up to 6 points-each judge gives up to 2 points for the speed of the lift up to 10 points-I will give each creation up to 10 points on how much I like it Bonus Points 2 points-a video displaying the qualities will add 2 points 2 points-if you incorperate a motor from something else you will receive 2 extra points. 5 points-If you complete a ball machine you will receive up to 5 points from me Contestants and Entries Knex mad Killer~SafeCracker trauts Wicky knexsuperbulderfreak Kinetic Big Z chopstx Coreyt Smilee bigdylan91 logic boy How the scoring works The amount of points you earned from last round will be added on to the total from this round to get your total to see who advances to the final rounds. The highest total will receive a bonus on the final round. DEADLINE DECEMBER 1ST

Posted by Electroinnovation 8 years ago

Two links for Aspies to discuss. (non-Aspies are welcome too Two links for Aspies

Posted by Lateral Thinker 8 years ago

Two Wheeled Robot

Hi I want to build Two Wheeled Robot as a project in my collage can any one here help me by some advice or books thanx 

Posted by mcte 6 years ago

how to open two word files in command prompt

How do i open two word files using notepad-batch files.if i write it without something between the two words but it doesn't work. what do i write between the words

Posted by thermoelectric 10 years ago

Meeting Room Two

Set up for new members. (Hopefully no need to be PRO) 

Posted by Lateral Thinker 8 years ago

Getting two e-mails when someone requests to join group

.  When someone requests to join the group Answerers, I get two e-mail notifications.

Posted by NachoMahma 8 years ago

Amazing Battery

This looks relatively easy to make;A stream of water is split into two streams and falls through two bottomless cans into two buckets. The falling water creates opposite electrical charges in the buckets, and high voltage arcs jump between them periodically.

Posted by radiorental 11 years ago

part 2 is out!


Posted by dsman195276 10 years ago

Two Knex Walkers of mine

Here are two knex walking machines of mine. Neither are bad, but both aren't great. I Might post the second one if I can make it better. They are both powered by two Knex Powerpacks. The first video is of the smaller one, and the second and third are the larger one.

Posted by I_am_Canadian 9 years ago