Cell phone repeater for my home.

I'm looking into getting a cell repeater for my home. I live in a rural area with not a lot of service inside my house, but four bars outside. The repeater I'm looking at uses an omni directional antenna that draws in signal from multiple towers for multiple carriers. My question is, since this system uses an omni antenna, wouldn't any antenna do? Such as a CB antenna? The way I look at it the antenna draws in all types of signal but its left up to the inside receiver what type of signal to use? Am I wrong on this?

Posted by cladner74 8 years ago


Bluetooth repeater

This is actually a question, for a group who appear to be the real hackers of science. OK, so much for the butter.. here's my question: I've seen an add for a Bluetooth device which will connect up to five headsets, forum style. But at 400 plus shipping, U.S., I was wondering if there might be another... more techie... cheaper way to do it. I only need to couple two headsets, but I understand that headsets don't have the smarts to be able to pair with each other. Any takers? Anyone do this before? Thanks, Stan

Posted by stancomm 10 years ago


Any body ever tried building a cell phone network repeater?

Hey has anyone ever tried building a cell phone network booster/repeater? A wireless one. I tried looking around online but just been getting Marketing stuff nothing which you could actually sit and construct yourself. May be using an old access point or something! I am not that too good with Radio circuits so looking for help to be able to try and make something really cool in my spare time. :)

Posted by metallica1025 10 years ago


HAM radio repeater controller arduino

Is there anyone who can help me with a repeater controller, i need a little program which will switch according to input + 3 sec (or something like that) also i want to decode 4 bit paralel data (binary output from a DTMF decoder) and switch outputs accordingly (if correct code is pressed) (thins like identifier, time&date;, last transmitted message) thees functions i will make on separate boards, i just have to trigger them last transmission board needs an input from the arduino when to start, the playback will be done with one of the DTMF-code outputs any advise / code is wildly appreciated :) ps, im very new to arduino and have plenty to learn  kind regards, milan 

Posted by milanhofman 4 years ago


I need to repeat radio frequency in the 402MHz range.

I need to repeat radio frequency in the 402MHz range.  How do you build a RF repeater? I need to extend the range of a CGM (Continuous Glucose Monitor). It uses the MICS protocol.  Can you adapt an existing device?

Posted by arourke1 4 years ago


My T.N.K.I.T Entry

Here is my entry for the T.N.K.I.T. Its a Full auto/ Repeater Duo. What i basicly mean is that its a 2 in 1 gun. I am using 64#'s on the gun so i only shot 4. Here is a video: It doesn't normally jam, but a piece had fallen out of the mag.

Posted by Millawi Legend 9 years ago


Long Range Off the Grid WiFi Repeater

Hello Everyone,  I've got quite the project that I am undertaking and I am looking for a bit of advice. This will be my very 1st forray into long-distance wifi, as well as off-grid power resources, so Im biting off quite a bit at once! I have a friend who has been helping me with the research who has a much firmer understanding of both electricity and hardware, but he will be out of town for the next week and I would like to get a bit of progress on this while he is gone. SO, I shall consult the hive mind known as the internet. Alright, this project consists of creating an uplink between a remote shed, and a home in a nearby city, with a broadband connection. The rub, there is 10,000 ft mountain range in between the two. We have a site were we can put a repeater node at approx. 10,000 ft elevation, that has wonderful line-of-sight to both locations. However, this site is very remote, and will have to run off the grid obviously. The distances are as follows: Home to repeater: 3.96 miles (thats with Google Earth following the contours of the          mountain/valley, not sure how to make it just do a straight angled shot, so thats a rough estimate) Repeater to Remote shed: 2.68 miles (same issue) Background environment info: shed has generator + 60w solar array with 3-4 deep discharge lead RV batteries at 7400 feet. Has spring fed running water, which could be utilized for power as well, as obviously its always running. Repeater location is at 10k, as stated. Moderate to high winds very likely (data from peaks of similar altitude in the general area show gusts ranging from 40-60 mp/h, temperature ranges of  averaging 7 to 90+ for a the later part of July and August (F). Obviously, its very possible to get soemething below this, though the lowest Ive ever seen at the shed has been -15 (f), I would say most winters we could get a few nights that see temps below 0, but not often. Equipment Ideas: So to pull this off, we have come up with two ideas for the network equipment, which I shall discuss 1st, then I will show you what we have come up with for power.  - Network    - Repeater Node: rb433 wireless access point ($99.00) http://www.routerboard.com/pricelist.php?showProduct=43         with 2 r52h mini PCI wifi chips ($59.00 x2) http://www.routerboard.com/pricelist.php?showProduct=69         2 8-18 inch satelite dishs converted for long-range WIFI use (20.00 x2) http://www.engadget.com/2005/11/15/how-to-build-a-wifi-biquad-dish-antenna/ OR instead of a rb433, we could use 2 WRT54G Linksys routers like this. (I also have 2 BEF 801.11b routers that are legacy to the WRT54G. I would like to use this if possible! http://hackaday.com/2005/08/23/how-to-greyhat-wifi-repeater/ Now, I know that this later choice would increase power use by about double. From what I have been able to find, the WRT's would at anywhere from 4.2w to 8w of power. Anyways, I like this later choice because it would be significantly cheaper for the equipment, but do you have any other ideas? I know that the RB433 would work great, but its rather expensive all said and done after I throw up the power as well. Plus, if it takes a lighting strike, its out of commission, and 2 cheap linksys routers are much cheaper to replace! Anyways any input here would be great! - Power  so power to the repeater node is the real challenge. We crunched the numbers and came up with something almost exactly the same as below: From the datasheets, a routerboard will draw between 6-10W. So design for 10W. Over 24 hours you will need 10Wx24h = 240 Watt.Hours of power. For 7 days, you need 7x240Wh = 1680 Watt.Hours. A single, large deep cycle 110Ah 12V battery gives you about 1320 Watt.Hours of power, almost meeting the requirement. Now, to look at the solar panels: A good rule of thumb is to install 6 times the wattage that is drawn by the device. This is because only about 8 hours a day in sunny weather gives you maximum power output from a solar panel. So the other 16 hours you need to draw from the battery. (So already you need 3 times the wattage drawn by the device to break even each day) To generate 1 full day of extra battery power per sunny day, you need another 3 times the wattage. This is how we arrive at 6 times. 6 x 10W = 60W. So at a minimum I would recommend 60W of solar panels. That qoute comes from http://diywifilink.wordpress.com/ and http://mybroadband.co.za/vb/showthread.php?179547-Advice-needed-Setting-up-wifi-repeater-11km which is a project from a guy in South Africa almost exactly the same as the one that we are working on. The numbers came out to be about the same (Though they were a bit different when we calculated for the WRT54G option.) so, 60w of power generation to keep a decent charge on a battery. Now, we have a 60w panel at the shed, which is rather large to take up to 10,000 ft and place on the side of a mountain, and given the consistent wind element up there, we are hoping to do a hybrid system of both solar and wind. This is where things get tricky. A perfect balance, or even a more wind heavy balance would be great, such as 30-40w wind 20-30w solar. That keeps the panel size down, and uses a power source that runs 24/7. A Faroun Savonius wind turbine seems like the best system, but the controller to prevent overcharging etc is where I get nice and lost, having breached into very unknown territory. https://www.instructables.com/id/Faroun-Savonius-Wind-Turbine/ http://www.fieldlines.com/board/index.php/topic,129060.html This looked at 1st like a good, cheap system to use a controller board for the wind, but my question is would the controller board that comes with these solar panels (see below) work for both. That below is the setup that we use more or less at the shed, with some mods, such as a better alternator. http://www.costco.com/Browse/Product.aspx?Prodid=11298029&search;=solar&Mo;=5&cm;_re=1_en-_-Top_Left_Nav-_-Top_search⟨=en-US&Nr;=P_CatalogName:BC&Sp;=S&N;=4001192&whse;=BC&Dx;=mode+matchallpartial&Ntk;=Text_Search&Dr;=P_CatalogName:BC&Ne;=4000000&D;=solar&Ntt;=solar&No;=3&Ntx;=mode+matchallpartial&s;=1&topnav;=&Nty;=1&s;=1 So, can a small, 30-50w wind turbine and generator be built, with a small solar array to power this thing? I dont care if we have some down time, this is primarily going to be used as a system to get a weather station with web cam to send in hourly photos during the peak hours. I can have the system at the shed shutdown automatically  using some cron jobs in linux during the evening to conserve power. When there are people at the shed, we would like to be able to get a good enough wifi connection to use a wifi device (such as an android phone or ipod) to use as a voip phone in essential communication. The teenagers aren't going to be chatting with their friends for hours, but we would like to be able to put a short call through in case something goes wrong, or we just need to get ahold of someone at the shed or in the city. Next the equipment at the shed should be comparable to the repeater node,  sans 1 antenna and just some low power embedded system. We would like to get a webcam and weather station hooked up on this end, but that can wait for upgrades later if needed, if power doesnt allow it. like I said, a simple water turbine could be used (something similar to the wind turbine perhaps?) and even another wind turbine could be built to add extra power dedicated to running any system at the shed, though I dont think the wind is quite regular enough to be viable here, but if its cheap, we could throw it on anyways. equipment at the home in the city is simple, just use an extra laptop or desktop we have laying around to be server/router, hook up antenna to this, broadcast connection, run the weatherstation/webcam web server off of this. So, thats the plan, but load of input is needed to try to come up with this. We hope to try to keep this sub $1000.00, but the budget could go higher. This is DIY at its finest! Thanks in advance for you help!

Posted by kydan 8 years ago


battery powered outdoor router?

I am wondering is there an instructable that shows how to build a battery powered outdoor router? I would like to extend the range of my wifi by using an old router as a repeater but don't want to have to string a extension power cord out to it in order to power it. I know routers don't take that much power to run so i would think someone thought of this already somewhere..... I have searched on instructables but haven't seen anything. thanks

Posted by jerty30 6 years ago


HELP! With Arduino coding.

Im working on a project to link 2 radios to make an em-comm repeater. I need the Arduino to preform the duty of the controller, and turn the transmitter on when a signal is received. I have all the sensors figured out, i just need help on the code, which il include at the end. if anyone can help, your name will be given kudos in the instructable, and will have my eternal gratitude! The entire project only takes up 4 digital pins, which are the receiver senseor(sensePin), the transmiter key(trigPin), the busy led(busyPin) and the ready led(readyPin). The idea is that when sensePin reads a HIGH state when a signal is received, it will set trigPin to HIGH, keying the transmitter, and set busyPin to HIGH, activating the BUSY indicator.At the end of this proccess, i would need a 3-5 second delay before the standby/ready sequence. When sensePin is read as LOW, trigPin & busyPin would be set LOW and readyPin would be set HIGH, activating the READY indicator. #define sensePin 13 #define trigPin 12 #define busyPin 11 #define readyPin 10 void setup() { pinMode(trigPin, OUTPUT); pinMode(busyPin, OUTPUT); pinMode(readyPin, OUTPUT); pinMode(sensePin, INPUT); } void loop() { if(sensePin, HIGH){digitalWrite(trigPin, HIGH); digitalWrite(busyPin, HIGH); digitalWrite(readyPin, LOW); delay(5000);} else {digitalWrite(trigPin, LOW); digitalWrite(busyPin, LOW); digitalWrite(readyPin, HIGH);} if(sensePin,LOW){digitalWrite(trigPin, LOW); digitalWrite(busyPin, LOW); digitalWrite(readyPin, HIGH);} else {digitalWrite(trigPin, HIGH); digitalWrite(busyPin, HIGH); digitalWrite(readyPin, LOW);}} If anyone can figure this out, like i said,i would be eternally greatful!

Posted by KJ4ZVQ 5 years ago


Knex Semi Auto

When you think about it, there is no possible way to make a good, strong and cool lookinig semi auto. Unless it has multiple lbarrels, then it Is impossible. Why Try then?

Posted by Bartboy 10 years ago


New Horizontal Mag Gun + Unfinished repeating sling

Here's a video of my new gun I'm working on, and some pictures of a new repeating sling that I scrapped.

Posted by jollex 7 years ago


Repeating the same instructable on the same page

Why does instructables repeat the same instructable over and over. I can understand recycling it one a week or month, but on the same page...too much.

Posted by wwlaveck 10 years ago


Rbg Alpha Repeater (NEW)!!!!!!!!!!!!!!!!!!!!!!

I made this new rubber band gun it rocks so much heres a couple of pictures of it

Posted by Erikthegreen 11 years ago


My Feed Repeated Posts

When looking at my "Feed" on instructables.com some of the posts repeat themselves. I've atached an image which is zoomed out really far to fit the repeated posts in the same window. This of course makes it difficult for me to discover new instructables.  Info:  Browser: Chrome, version: 47.0.2526.106 m Operating system: Windows 7 Professional 64 bit Steps to reproduce: 1. Signing into my account 2. Clicking "You" in top right corner 3. Clicking "Feed"  4. scrolling down until one has a puzzling feeling of deja vu

Posted by BrendanC3 2 years ago


Knex Alpha sniper repeater AMAZING!!!!!!!!!!!!!!!!!

I created this new gun that is longer more acurate better equiped and hurts alot

Posted by Erikthegreen 11 years ago


Buy Radios, Amps and Repeaters , Icom IC-PW1 Linear amplifier, HF+6m 1kW solid-state

Contact me if you are interested in any of the rigs listed. Amps and Repeaters , Icom IC-PW1 Linear amplifier, HF+6m 1kW solid-state Kenwood TS 2000 Kenwood TS 990s Elecraft K3 Elecraft KX-3 FlexRadio 5000a FlexRadio 6300 Icom IC 7800 Icom IC 756 Pro III Icom IC 7000 Acom 2000a Icom PW-1 Email :bidbuy@aeromazonltd.com Pictures and price available on request. (73)

Posted by BECKONX 3 years ago


Dir-300 as Wifi repeater

Hello, I have an AP in my house which broadcasts our wireless Internet signal throughout our house. Unfortunately there is a spot in my house where the signal is not received. I have a spare dlink dir-300 router which I installed custom firmware on (dd wrt). Can someone please help me use it as a wireless repeater. I want it to boost the signal of my other router. Dd wrt has a repeater function, but my router is an atheros chipset so it is not native on my device. P.s: I don't really want some cheap wifi booster made of tinfoil :p . Thanks in advance, Sam

Posted by Bituser 7 years ago


(Sold) Dragon Chu Ko nu for sale (repeating crossbow)

I am selling this beautiful ch ko nu, if you are interested in buying it I have it listed on etsy. Etsy listing https://www.etsy.com/listing/241754073/dragon-chu-ko-nu?ref=shop_home_active_1 Video of it: https://www.youtube.com/watch?v=a-jviBtHyaQ

Posted by Jaycub 3 years ago


Feature Request: Repeat Ible Alert

Sometimes I see a new Instructable (usually by a first-time poster) that is very nearly a repeat of an existing Instructable. I think that if people knew that their idea had already been I'bled before they published it, many of them would stop at that point (which would be unfortunate) but SOME of them would make the extra effort to differentiate their work with some new or novel approach, or better directions/photos/results, etc. If you do a "view Instructable>>" while you're building one, the "Related" sidebar of similar Ibles shows up, but it doesn't appear to be intelligent at that point. That might be a simple fix. Or maybe as soon as you fill in the "Name This Instructable" box, the "Related" sidebar would appear. Just a thought. James

Posted by Scubabubba 9 years ago


Repeating RSS Feed Topics

I'm subscribed to the RSS feeds for Instructables, News, Forum Topics, Comments (to me), and my Personal Messages Inbox. And they all repeatedly send me the forum topics. Most of the "new" items I get in all of my Instructables RSS feeds have already been sent to me before. It's incredibly annoying.

Posted by Aeshir 11 years ago


Author Options showing on other people's threads

When visiting other people's threads in the forums, the author options box is showing on the right hand side.Bug is repeatable on Firefox 3.0.10 Windows XPScreenshot taken on https://www.instructables.com/community/answers-is-broken-/ but the bug seems to be repeatable on all forum topics.

Posted by whatsisface 9 years ago


Repeat Thread about Repeat Instructables

First point - I am not against different versions of the same item. There are often several equally-good answers to the same question.However...I just looked at the "recent" explore option, and about half the instructables on the first page were repeats of past Instructables. Two almost-adjacent posts were for the same thing.Now, remember, I'm not against different versions of the same thing, but these were very similar to the past versions. Not copied, but re-inventing the wheel, if you will.This has been a bug-bear in the past, with some members getting quite heated about it.I would like, therefore, to propose a set of possible solutions, using the Instructable on writing Instructables:> This could be linked by a permanent, prominent button from everybody's "home" page.> It could be automatically sent to new members as part of the registration process.> It could be highlighted as part of the Contribution process.Alternatively, when one clicks on the "new instructable" link, it could direct the user first to a page with instructions on searching the existing archive for any previous versions of the project before getting as far as writing "step one".I commend the motion to the house.

Posted by Kiteman 11 years ago


Vibrant green rug made from felt scraps

The folks over at Martha Stewart's craft department make a lot of things out of felt and thus have a lot of felt scraps left over. Kristin St. Clair had some free time and started a small project with the felt that turned into this crazy rug. To make it yourself, cut up a ton of felt strips and start rolling them up, using fabric glue to keep it all together. Repeat, repeat, repeat, and add some other shapes along the way to keep it interesting. I just FELT like crafting! via CRAFT

Posted by fungus amungus 8 years ago


Bug in section play

Hi , i've noticed today that every menu is repeated 3 times in section 'Play' . kust to let you know ;-)

Posted by ahmed-max 7 years ago


Forums ?

Are "forums" now designed to be hard to find ? They're no longer on the top tab. "Quick fixes" was broken - the page linked said that it is an incorrect one, but repeated refresh seems to fix it.

Posted by steveastrouk 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


Reply comment fails

When I am replying a comment, the editor takes my previos response instead of the text I typed. You can see this in https://www.instructables.com/id/Dont-be-stupid-as-me-no-sea-estpido-como-yo/. Apr 13, 2012. 6:55 AM repeats two more times, at 6:56 AM and 6:57 AM. Then, I can not reply last comments. This is not the first time this problem occurs, since any months it happens, but randomly.

Posted by rimar2000 6 years ago


Sorry for the outage

Our data center had a series of problems that effectively brought Instructables, and a bunch of other servers, to a grinding halt this morning. But, we're back, the problems are isolated, and hopefully won't be repeated. Sorry for the down time!

Posted by ewilhelm 10 years ago


PLANS Dragon Tiger Chu Ko Nu Repeating Crossbow

This is a set of complete plans for a Dragon or Tiger "Chu ko nu." To be purchased on Etsy as a downloadable set of files: https://www.etsy.com/listing/272230762/dragon-or-tiger-chu-ko-nu-plans?ga_order=most_relevant&ga;_search_type=all&ga;_view_type=gallery&ga;_search_query=repeating crossbow&ref;=sr_gallery_1    It is an ancient Chinese mechanical repeating crossbow. The plans include the printable dragon and tiger patterns that you glue on to your wood pieces, then cut out and wood-burn the beautiful pattern. Then you can paint or stain it how you want to. It is a crossbow and a sculpture, like a display woodworking item that is also fun to shoot! Assembly instructions here: https://www.youtube.com/watch?v=SCGHTDqgWHU I have been fascinated by this type of crossbow since my early teen years and have been building and experimenting with them for more than 10 years. This set of plans displays my most current and refined iteration. It is very fun to make this and see your own fine work come together, then see and feel the mechanism function smoothly. Very satisfying. To build this you will need some small hardwood boards as will be listed on the cover page of the plans (this wood is available at hardware stores ex: Lowes). You will also need white glue, two wood screws, and one small nail. The plans are delivered to you as a digital download in a zip file with all the pages in it. Tools needed include: Saw (prefer a band saw with scrolling blade, but a thin bladed hand saw can work), Sand paper, Round wood file, Clamps for gluing, Drill with selection of bits, Wood burning tool.

Posted by Jaycub 2 years ago


Calculating Pi using simple JavaScript

One day I was bored and wanted to calculate Pi for myself. After finding out the Leibniz formula for Pi. When it is solved for Pi one gets: Pi=4/1-4/3+4/5-4/7... And so on since it's an infinite series. Since one can see a pattern that can easily be defined I concluded that a simple program using a loop could be made. I decided on using JavaScript for its ease of use and use a for loop. The program I made at first was mainly: var Pi=0; var n=1; for (i=0;i<=1000;i++) { Pi=Pi+(4/n) n=n+2 Pi=Pi-(4/n) n=n+2 } Where the variable "Pi" is the value of Pi, "i" is the number of times the loop is repeated, and "n" is just a variable to help in the formula. This I however found could further simplified to: var Pi=0; var n=1; for (i=0;i<=1000;i++) { Pi=Pi+(4/n)-(4/(n+2)) n=n+4 } Of course the more times the loop is repeated, the more accurate your value of Pi gets, and while 1000 may seem like a large number, the value of Pi which it calculated is wrong after the 3rd decimal point. I've had it repeat over 100,000 times and it gets more accurate, however, remember that making the number of repeats can slow down and even crash your browser (I speak from experience). If you want some ready made scripting, then here's some scripting I've made which lets you easily control the amount of loop repeats. It is based as an HTML document: //Made by Masterdude var c=0; function Calculate() { var c=prompt("Enter number of cycles:","0"); if (c>0) { var Pi=0; var n=1; for (i=0;i<=c;i++) { Pi=Pi+(4/n)-(4/(n+2)) n=n+4 } alert(Pi); } else { alert("Canceled or Error in input: Input must be positive."); } }

Posted by Masterdude 7 years ago


Why Are Old Forum Topics Always Showing Up In the RSS Feed?

I realise it is because when someone comments on them/edits the page, but why do I have to keep seeing repeats every five minutes?

Posted by Aeshir 11 years ago


Slimmest Repeating Folding Gun

Alright I've always wanted to make a folding gun that worked and looked decently. However, it would probably have been ignored if it didn't bring anything new to the table. I wanted to give this one a horizontal magazine but then there wouldn't have been enough room for other stuff like the handle. I said screw that and just went with a normal magazine. So far this is the slimmest design for a folding gun that repeats. A smaller one could be made but I'm starting off simple before playing the nanogun game. A nice bonus is that it doesn't have any blue rods sticking out so it is actually possible to fit it in your pocket if you're wearing big enough pants. It fires. Decently depending. Has a 4 round oodammo magazine. I don't really care for the handle but it works. The way the bands are set up, it doesn't require a lock though it doesn't automatically unfold either. Just flip out the stock and it'll stay out then you pull down the handle. Edit: Alright video up. This version fires oodammo.

Posted by TheDunkis 8 years ago


Please go to the options page and set your preferences!

I'm just trying to download a file as a pdf & get repeated , repeating, message. "Please go to the options page and set your preferences!"   I can't find an options page, let alone a preferences page. I've tried this on my Chromebook running current release OS, and on my W-8 PC running current Chrome Browser version. This popup is incessant!  I can't get the data I need, what is the deal?  See attachments screenshots  What do I need to do, I can't find the page this popup is talking about????  PLEASE HELP JLH

Posted by oldhaus 5 years ago


Hey im new :)

Hey im new guys :), im intrested in rubberband stuff, so...yeah. Does anyone have an rubberband gun intructable? not a lego rubberband gun, one made from wood, a repeater rubberband gun weith a cog n stuff. Well that all :)

Posted by QueroAlpha 11 years ago


Brown Sugar

Well I was wondering how Brown sugar affect recipes differently from normal sugar. I am making a recipe from scratch, so this will help me from repeating it over and over. Also since its a candy does it melt like normal.

Posted by acer73 11 years ago


How you build knex guns

How do you build knex guns? I make a frame, make the internals and tweak the frame as I go, and make the frame again. So I repeat, how do you build knex guns?

Posted by jamesdude 8 years ago


OK to post?

I made a suppressor/ recoil compensator for a Umarex Steel Storm bb repeater pistol and would like to post the how to. Is that OK? It is relatively esy to build, and being made from household and hardware store parts, it is very inexpensive as well.

Posted by gtfoxy 5 years ago


The best of Office weapons

We have all at one time built a weapon out of a pen. There are plenty of Instructables under office supplies that cover booby traps, launchers, and even siege weapons. But some are repeated. Which are the best? Which need more? You decide.

Posted by SpareParts 7 years ago


everyone look here!!!!!!!!!!!!!!!!!!!!

Everyone on instructables, do not change your avatar or go to change image and click update. you will lose your avatar. i repeat, do not change your avatar or go to change image and click update. you will lose your avatar. you have been warned.

Posted by dsman195276 10 years ago


Dutchj's Top Loading Rifle

Well, here's my Top Loading Rifle. I built this for the sake of building something after being inactive for such a long time. The original idea was to make a very solid gun that could be top-loaded with rods, so the pusher would never have to leave the gun, which would make for quicker reloading. That didn't work because rods always pull on and push each other, but I managed to complete it with different ammo. Some may find it to look a bit boxy, and that's because I didn't add anything to the gun that wasn't needed. No long barrel, no wedge-shaped stock, none of those things. The stock is strong enough as it is, and a longer barrel would only decrease the range ( dramatically ). Here's some basic stats:Type: RepeaterAmmo: Grey connector - green rod - orange connector - green rodCapacity: 9 without the pusher leaving the gun at all. otherwise 10, or more with mods.Range: Depends. I haven't tested, but I think it gets pretty average ranges for a repeater.Power: It drew blood at point blank.Reload time: Shorter then other repeaters with fixed magazines because the pusher never leaves the gun.INSTRUCTIONS: http://knexinnovation.net/forums/viewtopic.php?f=49&t;=846

Posted by Dutchj 9 years ago


A real air rifle

A buddy from work found this and I found it so interesting I thought I'd share with all you air gun lovers, and lovers of history! Lewis & Clark secret weapon - - a late 18th Century .46 cal. 20 shot repeating air rifle by Girandoni

Posted by RedneckEngineer 7 years ago


simon?

If any one dosnt no what a simon is it is a battery powered game that has four buttons with different colors and it makes flashes and your supposed to repeat them and if you get a color wrong game over simon tricksters are newer and have more games I made this forum topic to see yours if you have one.

Posted by Knex_Gun_Builder 9 years ago


IR LED as Camera Remote

Is it possible to use an IR LED as a camera remote? I would like to have the LED flash at like two to three minute intervals thus closing the shutter and taking a picture. Is this possible? How do I learn and then repeat the frequency that the camera needs to take the picture? TIA

Posted by sdtacoma 10 years ago


Bug or operator headspace? Five editions of same I'ble

On the recent Instructables list, there are five separate "editions" of the "identical" video (with URL suffixes _1 through _4). I thought that when you republished an update, previous versions were replaced in situ. Is this a bug, or did the author just glitch on the publishing interface?

Posted by kelseymh 10 years ago


Why or why not does .9 repeating equal 1?

I already posted this as a regular question, but someone told me to make it as a burning question, so here it is: HI! I am wondering if .999...=1? I mean if 1/3=.333 and 1/3+1/3+1/3=3/3 and 3/3=1. So wouldn't .333...+.333...+.333...=1? But it actually equals .999... not 1. I googled this question and I got many different answers ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ For example...(someone wrote): I'm not really into math, but a friend brought something up to me today that really seemed very strange. (For the duration of this post, .999 will mean .9 repeating unless otherwise specified- just for the sake of ease) .999=x 10x=9.999 10x - x = 9x 9x=9 1x=1. .999 = 1. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Someone else wrote: Numbers are fake. They are a manifestation of our minds to describe something, similar to words. Just because we say "red" doesn't mean something is red. what is red? Languages and math are very similar. Math is universal...at least for our planet though. .999~ does not = 1. But what .999~ repeating represents, does in fact equal what 1 represents. No-one will ever be able to comprehend infinity, os its time to stop trying. Think of space and the universe. IT IS GROWING. how can it continue to grow with no stop? what is there to contain it? WE need something to contain it in order for us to understand it. We need a stopping point, but there is none. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Another person wrote: In your proof that .333...*3=.999... you forgot to include the fact that .3333... is NOT 1/3. 1/3 if not a number that can be turned into a decimal in any way. I thought someone might like to know this fact. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ And the last person wrote: Just a pedantic point the equation for differentiation is given by lim x->0 [f(x+h)-f(x)]/h, it has the minus sign. It is after all just telling you the slope and is no different really from doing simple trig using the tan function. Here you just take a really small triangle. As to the 0.99~ thing, this is really just writing the supremum (spelling might be off) of the numbers less than 1. Just think of it as taking the smallest number 'n-word' than 0 away from 1. They are not identical for if they were we would not have a continuous number line, but rather a dashed one with lots of wholes in it. I could simply argue that 0.99~8 is just as close to 0.99~9 as 0.99~ is to 1. For those who really want to understand go and look up supremum numbers and the axioms of the real number line. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ So who is correct? Do you agree that .999...=1? Or .999... does not equal 1?

Posted by Pizzapie500 8 years ago


The &quot;Two and two ain't five show&quot; (1969)

It's a Pitch for Sesame Street, some interesting background..."We're going to keep repeating them Kermit, just like commercials on regular TV, again and again, until they sink in you know." (Pitch video starts at 1:50)L

Posted by lemonie 9 years ago


The Kinetic Rifle V.1

Here it is: the bullpup, tube mag, bolt-action, pump-action, sling semi-repeater.  This is by far my most favorite gun I have ever built.   The reason I call it a "semi-repeater" is because while it has a magazine, loading it involves a two-step process of pulling back the rubber band and then pulling the pump.  Therefore you don't have to load each individual bullet into the barrel by hand, the pump does that for you, but the band still has to be pulled back manually.  The gun was originally intended to have the pump bull back the band as well, but to do so the pullback distance would have to be greater, requiring a larger barrel to house a longer pullback, requiring pieces I just don't have.  When I get the pieces I am going to make the pump pull the band back, and I will post that as the V.2. What I love about this gun is that it takes many concepts and combines them to work in sync with one another.  I also like the fact that there is almost no limit to how powerful you can make this gun, since the ratchet can hold an incredible amount of tension.  Overall it is an incredible gun, averaging ~60ft with the 1 band used in the video.  Though it isn't the most reasonable choice for a war (it only holds 4 shots in the mag and is huge), it is well on its way to becoming the most efficient knex repeater out there. -Kinetic iMovie wrecks.

Posted by Kinetic 7 years ago


Knex Concept: 1

So just something quick. I got this idea for a more powerful semi-auto. Its basicly a slingshot, when you pull the trigger it pulls back the band and releases it in a smooth motion. Then you pull the trigger back and repeat.  Its nothing speicial, I can't even work on it now because of the railgun though.

Posted by didexo 6 years ago


TI-connect for calculator

I'm having trouble loading "TI-connect" on my mac so that I can write programs for the ti-84 on the computer. After downloading ti-connect, I click on it, and it seems to want to install it again. I've done the complete loop, repeating the download process about 4 times.  Do any of you know what to do?

Posted by Toga_Dan 6 years ago


Upload Fault

I can not upload excel files to my instructible. I have tried 20 or more times, closed the browser and repeated, tried another browser, renamed the files but nothing seems to work. I have had this problem before and sometimes after about 2 hours of frustration, the files suddenly upload correctly. This is extremely annoying. Can anything be done to fix this fault ?

Posted by kymyst 5 years ago