K'nex Flux

Hello everybody! I'm here to tell you about a website I recently joined, created by Sorunome, which is amazing! It's a forum for k'nex called KnexFlux. You can make instructions, like Instructables, or even import from Instructables. You can ask for help with your builds, ask for suggestions with your builds, look for ideas for builds, post progress with your builds, and much more! Basically, anything k'nex related is allowed there and it's much more useful than Instructables. I'm not saying we should all quit Instructables, I'm just trying to raise a lot more awareness of this amazing website. Sorunome tells me it's taptalk compatible too, so you can browse it with ease from your phone/tablet! Here it is: http://knexflux.net/

Topic by That_Jamie_S_Guy 3 years ago

Diy soldering flux

Quick question regarding diy soldering flux can i use gum rosin to make the flux

Question by nikko_47 1 year ago  |  last reply 1 year ago

What is sodering flux?


Question by pearson4 9 years ago  |  last reply 9 years ago

What is soldering flux used for?

Just wanted to know.

Question by young skipper 7 years ago  |  last reply 7 years ago

In the world of electronics......what is flux used for?? Answered

Do you put it on your soldering iron or on a wire?

Question by chipper35 7 years ago  |  last reply 7 years ago

Should I use a flux pen? Answered

While soldering, some contacts don't want to take the solder even after heating it. I think some of them might be dirty. Could I use a no-clean flux pen like this to clean the contacts and also make soldering a little easier?

Question by Arya42 6 years ago  |  last reply 6 years ago

how to use water soluble flux?

Hey, so i got a little Water Soluble Flux with my Soldering Gun (new to this)  Well it turns out that this stuff came with no instructions and I cant seem to find out how to correctly apply it.  this is what I bought http://www.bernzomatic.com/PRODUCTS/KITS/SOLDERKITS/tabid/252/ctl/Detail/mid/1254/xmid/6931/xmfid/3/Default.aspx Someone please help?

Question by Epond89 7 years ago  |  last reply 7 years ago

how does a flux capacitor work O.o? Answered

Like it said in the title, I wanna know how it works so I can go Back in time.

Question by 64bitgenius 7 years ago  |  last reply 7 years ago

Need Idea of what to do with this?!?!

I bought this "FLUX capacitor" at a closing antiques/random oddities place a few months back and am now being pestered to do something with it. If anyone has any ideas as to what someone (with beginer experience in most areas) can create with this as a base, please drop a comment, if better pictures are required, just ask and i will try and get better ones. Thanks, ~bIrD P.S. Sorry for the rotations on the pictures, don't know how to change it in instructables...

Topic by godofbird 4 years ago  |  last reply 4 years ago

Axial Flux Wind Turbine

24 pole, 3 phase alternator. 18 coils of #20 wire 80 turns each, 6 coils in each phase connected in series, then wired 3 phases in star config. Put out lethal voltages at a very low rpm. Using N45 2" x 1" x 1/2" Neo Mags, two discs of 24 each attracting each other through coils. I need to know what the number of turns would be for #13 wire, same configuration for charging batteries.

Topic by dna11207 10 years ago  |  last reply 1 year ago

borax, boric acid, flux

Does anybody know the relationship of borax and boric acid? Are they different forms of the same thing? Are they related at all? What if any do these have in relationships to flux to silver smithing. (I think the flux is Boric Acid but I am not sure.) I have a box of Borax, that I use to make liquid laundry soap. - I also used it to make crystal snow flakes - beautiful. Just curous.

Topic by gloflyer 10 years ago  |  last reply 5 years ago

Flux core welding wire any good? Answered

Im looking at wire feed welders but I don't want to screw around with gas, So is the gas less flux core wire any good??

Question by camping crazy 4 years ago  |  last reply 4 years ago

I need help to braze 308 and 316 steel rod Answered

I'm a glass bead maker and silver jewelry maker. I'm trying to braze 308L steel rod to make some jewelry displays. I have had limited success using my regular silver jewelry solders and griffith flux but the joints are weak and easily broken. I have a torch but I need to know which filler material to use and which flux I should buy for it. So far I've been unable to fathom it out. Sadie

Question by sadiesjewels 8 years ago  |  last reply 8 years ago

Soldering aluminium and stainless steel - input for an Instructable

I am currently working on a new Instructable covering the topic of soldering aluminium and stainless steel. As I am "old school" and don't like to waste money on special equippment unless really necessary, I would like to get some feedback on what to include. So far I covered the basics of the materials, the general how to and what to llok out for. Pics and videos will be made once I am happy with the tutorials to give a better understanding. Aluminium is considered to be hard to solder with no experience and I would like to try to make it possible for the hobbiest to do it, same for stainless steel. For example: Should I include my recepies for stainless steel fluxes or limit it to the procedure of actually doing it without any flux? Is is better to document with nice pictures or videos showing the entire process? (asking the noobs that want to learn it) Is it necessary to go into details like what solder alloy is best for the purpose? For me it is quite hard to go back to a "I know nothing about it state" and make sure everything a noob might need is included. But the longer I work on it the bigger the Instructable is getting with informations that not everyone might need, like how to properly clean the surface, remove the oxide layerand provide the right temperature for the job. Trying to keep it simple but complete and not drifting into boring details is harder than I tough on this topic :( Feedback and requests are welcome!

Topic by Downunder35m 4 years ago  |  last reply 4 years ago

how do you make homemade flux???

I saw the instructable about making flux out of pine cones but i have a problem: WTH do i get pine cones in a tropical country??? I did some research and found out hydrochloric acid is a component in some fluxes out there. I wonder if i can use lemons, an abundant supply in the form of calamondins here in the Philippines. EDIT: it's for soldering

Question by beehard44 8 years ago  |  last reply 8 years ago

[newsletter] Flux Capacitor, Bike Blender, Grow a Pineapple...

Sign-up for our newsletter here. June 5, 2008 Welcome back! We launched our Lonely Planet Travel Tips Contest. Share a great travel tip and win some fantastic photo books as well as guidebooks, phrasebooks, and t-shirts! The Discover Green Science Fair for a Better Planet Contest closes for entries this weekend! Submit your Instructable soon to win the Celestron SkyScout. The voting has closed for Park Tool Bike Month. Check back later today to see who won! Check out these cool Instructables! DIY Flux Capacitor Get ready to go back... to the future! 1.21 gigawatts not required. posted by sponges on Jun 3, 2008 How to create a bike blender for less than $25 When the love of biking and the love of smoothies come together it can be a beautiful, and tasty, thing to behold. posted by I_bike on Jun 1, 2008 The Conetenna - a wi-fi antenna The quest for improved wi-fi continues with this massive cone variation of the cantenna. posted by Shadetree Engineer on Jun 1, 2008 How to Grow Pineapples Pineapples are easier to grow than you think. Get a pineapple and some dirt and you're most of the way there! posted by woofboy111 on May 30, 2008 Japanese lamp from recycled materials A cheap but attractive paper "shoji" style lamp that uses mostly recycled parts and is easy to put together. posted by PKM on May 29, 2008 How to make an Iron Man Mask Whether you're stuck in a cave or have some time at home to build, these instructions will help you get that superhero look. posted by msraynsford on May 30, 2008 Repainting an Old Bicycle Want to keep your old frame looking good as times and styles move on? A new paint job is likely in your future. posted by Dr.Paj on Jun 1, 2008 Etching brass plates Adding some brass adds a bit of class to your project. Learn to etch and you can include a sweet custom finishing touch. posted by gotang on May 27, 2008 Win amazing LED POV kits! What have you done for robots lately? Closes for entries this weekend! Handy Bike Mods and Projects This collection of things to do to and with bicycles will provide plenty of ideas for your next two-wheel project. posted by TimAnderson on May 30, 2008 Illuminated Keyboard Hack Turn your ordinary keyboard into an illuminated one for under $5. This is an easy keyboard mod that takes about a half hour to do. posted by Kipkay on May 30, 2008 Bike Generator Attach a generator to the rear wheel and power up both the front and back lights. Never worry about the batteries dying again. posted by dbc1218 on Jun 1, 2008 Zigzag Pop-Up Here's a quick pop-up that only takes a few minutes and has a nice effect. All you need is a printer (preferably color), paper, and something to cut with. posted by fungus amungus on May 30, 2008 Now go make something awesome, and I'll see you next week! - Eric

Topic by fungus amungus 10 years ago

How can I make RGB LED lights change color with a switch? Answered

I would like it to have five options: Red, Green, Blue, White, and a pulsing, changing color. What switch can I use and what parts would I need?

Question by metalshiflet 5 years ago  |  last reply 1 year ago

is this good rookie soldering tool?

Is this good for a rookie solderer ? my dad is going to take me to ace hardware so i can buy a soldering iron so i have to pick one quick so i know what to get when i get there so isthis a good starter kit

Question by albylovesscience 9 years ago  |  last reply 9 years ago

How much is liquid solder flux at menards?

I like to solder things and stuff. I get frustrated when the solder just wont stay or go where I want to. Today I was working on a robot for science olympiad at school and my teacher showed me how to use liquid solder flux. I was amazed by how well it worked. I asked him where he got it and he said menards but he didnt remember how much it cost. Does any one know. I cant drive yet and my family is sick except me so asking a friends mom to give me a ride to menards would be kind of weird. Do you know how much it cost at other stores? I could only find the paste on radioshacks website. It didnt seem to work as well when I used it. 

Question by TOCO 8 years ago  |  last reply 1 year ago

luminous flux vs intensity for wall lighting? Answered

Forgive me if this is an elementary question; I have very little understanding of optical physics.  Asusming that's even what this pertains to. Anyhow, I'm designing a music responsive LED display.  The gist of it is that the LEDs will be angled towards the wall slightly, with the intent being to use the wall as a sort of canvas for the light. I know flux somehow pertains to the general light emitted/spread, and intensity to the intensity at the point of emission. Unfortunately, my grasp pretty well ends there. As such, as I go to purchase LEDs, I'm unsure of which of the two is more important for my project (as it seems I can't have a maximum of both for my price range).  So my question is such:  Which factor (flux or intensity) will create a bolder impact in the context of visibly lighting the wall?  Keeping in mind that I don't intend or need to light the room itself, merely create the boldest display on the wall.  Thanks for helping a novice!  

Question by Skidion 7 years ago  |  last reply 7 years ago

Rewinding a MOT to make a high current supply. Answered

New Question: Ok, I've done a little more research on this, and it seems that MOTs are just pieces of junk basically. Manufacturers design them to go far into saturation because they don't care how much electrical power is wasted, as long as the transformer is cheap to make. The air gap is probably there just so it's easier to cool with a fan. Now I need to bring this thing out of saturation. There are about 90 turns on this primary, which I want to be the secondary at 30 V. So I would have to wind a new primary with 360 turns of thin wire. That's a lot of work, and a lot of wire. Is it worth it? The other option would be to add turns to the existing primary. This seems more reasonable, but just how much would I need to use to bring it out of saturation? Original Question: So, I'm a physicist (in training) and I know the theory behind transformers, but actual transformers are still pretty mysterious to me. I've found quite a few Instructables and other sites related to MOTs, specifically related to making high current power supplies with them. The problem I'm having is that even when the secondary is open, and indeed when the secondary has been completely removed (and the shunts removed), the primary draws upwards of 10A when connected to mains. To me, this is unacceptable. Transformers should draw significant power only when current is drawn from the secondary. I'm trying to figure out why (specifically) it does this. I've got a variac and the transformer only begins drawing more than about 2 amps once the variac is set to about 90V. This seems like non-ideal behavior to me, but what I know about saturation tells me that the amount of steel the core has is more than enough to stave off saturation at open secondary, but I could be wrong. The only thing I can think of is that the primary coil has about a 1cm air gap on either side of the core. Since the efficiency is related to the magnetic flux, and I'm guessing the area of the air gap is roughly 1/5 of the area of the core, this could cause significant inefficiency. Here's what I want: I want to make a ~30V (possibly with multiple taps) high current supply out of this MOT that draws less than 1 amp when the secondary is open. I tried connecting the mains to the secondary before I removed that and I got about 5 volts on the primary, but I need more than that, and the windings were so saturated with resin I had to just remove the entire secondary. I'm thinking about winding a new primary (using the old primary as the new secondary) with something like 18 gauge wire that would give me 30V. Would this work? What I really need to know is why the existing primary is drawing 10 amps. That's just ridiculous. If I can solve that then the problem is easy. Update: There is a difference between resistive and reactive current, and I know that reactive current actually draws net zero power because it's 90 degrees out of phase with the source voltage. Capacitive and inductive loads do this apparently. Is this the reason for the massive current draw? If so, I might be able to minimize the current draw from the mains line by putting a matched capacitor in parallel with the primary. But this wouldn't stop the transformer from heating up.

Question by laserjocky 7 years ago  |  last reply 2 years ago

can i soldier on with my soldering?

I was give a gift of a soldering iron, it came with a crappy little stand, so im making one i saw here, and a little coil of soldering wire..but while checking out various "how tos" i keep seeing flux...it didnt come with flux...for flux sake....do i NEED to use flux? is ther a substitute?

Question by teachme2night 9 years ago  |  last reply 9 years ago

Can I weld aluminum with a mig welder if I have flux core wire? Answered

My parents got me and my younger brother a mig welder for Christmas they also got flux core wire because gas is expensive. But my brother keeps saying that we cant weld aluminum with it I have heard of aluminium flux core wire but he still says it wont work. Dose the aluminum flux core wire work any good or is there something else we need to get?

Question by Dalen Brewer 4 years ago  |  last reply 9 months ago

how to make flux, there are instructables how to do that, but i can't find ethyl alcohol?

option, 1. vinegar 2. sodium bleach that all that i can get,

Question by hore 8 years ago  |  last reply 8 years ago

We are LIVE!!! - Knex Flux - General purpose Knex forum

Knex Flux is live now, you can visit it here: http://knexflux.net So, I randomly had that idea and Sandro likes it too and stuff, so yeah, is there any demand for a general-purpose knex forum uniting all the parts of the knex community under one hood? Of course such a forum would need people who actually use it, thus me asking if it would be used ^.^ I could do the hosting, I know my way around such stuff :) This would be in particular good for sharing progress, which isn't really possible on instructables, sharing small projects you don't think are worth a whole new instructable, helping others out and of course all just having a fun time together!

Topic by Sorunome 3 years ago  |  last reply 1 year ago

Magnetics software for designing magnet coils?

Dear Instructables, I need to design magnetic coils for a mattress that would emit a uniform magnetic field. Does anyone know of a basic program that would plot flux density over the coils? Preferably free! Thanks! Mike

Topic by Cburg1 6 years ago  |  last reply 6 years ago

Soldering copper to copper?

I'm just starting out but most of the instruction I've seen on soldering (jewelry) talks about flux, the solder itself, and a torch or soldering iron. When soldering copper to copper is there a special flux and solder to be used so that the solder doesn't look "silver"? Does it matter whether you use a torch or a soldering iron?

Question by 9 years ago  |  last reply 10 months ago

how to build dc electromagnet which produce 5mT of flux density?

Which type of core should be used.it is used in electronic circuit just to wake up data logger

Question by dhanushar 2 years ago  |  last reply 2 years ago

I would like to paint my titan flux 09 snowboard binding high backs. Any idea what paint i should use?

The paint is starting to come off so Im taking the oportunity to repaint them to match the board. Im mainly concerned with the potential for adverse reactions of the paint with the binding materials cause them to fail.

Question by northall 9 years ago  |  last reply 9 years ago

Replacement of function generator?

Sorry earlier i posted reverse of that...i saw a video on utube a man producing magnetic flux from dc current (conveted to AC with help of dc motor)..how that can be done What i want to stay is you hava a 9v battery a 5v dc motor and a capacitor ow can u produce magnetic flux? without doing any  implicit changes i mean disturbing the motors etc etc(internally)

Question by jatinbatra 6 years ago  |  last reply 6 years ago

im not leaving instructables but im not really doing anything either

 for all the 16 followers i have. if u really liked my instructables. fine. but im not really into knex anymore. no im never getting ride of my knex because when i have kids ill give it to them. the reason im telling u this is because i have been working on 2 guns for the last year and still havent completed them. the reason why i haven't been on insturctables in a SUPER long time is because my hobby is rc cars. ones that go 45 mph. 1/8th scale of a real car. super big bore shockes. two batteries. also, if u wanna get into this hobby, you can message me on youtube. (if u have a youtube account) or here on instructables. if u still wanna follow me, u can go to my youtube channel at http://www.youtube.com/user/puffmonster689?feature=mhee

Topic by mberg 7 years ago  |  last reply 7 years ago

LCD/VFD free samples?

These screens are pretty expensive, has anyone been successful at recieving a sample? Also if anyone knows where I can get samples of flux, desoldering braid, perspex, rare-earth magnets, IC sockets and headers. Thanks, Alex.

Topic by alexgeek 10 years ago  |  last reply 4 years ago

Why is solder not staying on the tip of my soldering iron?

The tip of my new soldering iron is not holding solder while tinning even after applying flux. Soldering is therefore getting difficult, can anyone suggest a solution for this problem?

Question by Ankan Nayak 6 years ago  |  last reply 6 years ago

Soldering help?

I have trouble getting the solder to actually stick to the things I'm soldering. I use flux, but all the solder sticks to the tip. I have to keep making a bigger bubble until it falls off onto the wires. Am I doing something wrong?

Question by 7654321 8 years ago  |  last reply 8 years ago

How do you build a successful working time-machine?

What materials do you need to build a time macchine? How much energy? And how do you controll it? Can you give me some backround knowledge?

Question by awesomo3000 9 years ago  |  last reply 4 years ago

Magnetics software for optimizing coil design?

Dear Instructables, I need to design coils for a matress that would emit a uniform magnetic field. Does anyone know of a free software program that plots magnetic field strength of a coil? Many thanks! Mike

Question by Cburg1 6 years ago  |  last reply 6 years ago

Reuse old motor from cement mixer for building coils in the axial flux alternator for diy project 1kw wind turbine? TIA

 The coils in the alternator are meant to be 14 gauge enameled wire, does anyboedy know if the wire in other ac motors like the one in a cement mixer use this type of wire? Cheers!

Question by llucop 9 years ago  |  last reply 9 years ago

ball mill media help!

I made a ball mill today. and i made some lead balls out of solder,but the solder contains flux. and i know that acids are not good to have in a ball mill because it can spontaneously ignite. so i was wondering if i could neutralize the acid with backing soda? or does it not matter that its there?

Topic by DELETED_DELETED_kruser495 10 years ago  |  last reply 8 years ago

transformer design... Answered

Designing a transformer, currently i have a 250mm by 250mm window for wire and interchangeable coils, some only a few turns, but will leakage flux cause large power loss?, or will it just limmit current, i read some stuff and im not really sure, i mean i don't want to start building it if it won't work

Question by pwnag3 7 years ago  |  last reply 7 years ago

cheapest welder for aluminum?

I need to weld 3/16" sheet aluminum for a boat i'm making and want to do it at the cheapest cost. this welder (http://www.harborfreight.com/90-amp-flux-wire-welder-68887.html) says it won't do aluminum (and i'm not sure 90 amps would be enough anyway). Is that true? What if i bought the 180 amp model? Any suggestions for other welders?

Question by ridecruz88 7 years ago  |  last reply 4 years ago


So I see tons of instructables for no weld bikes, trailers, and all kinds of stuff. Well, I just got a new flux wirefeed welder. I need something to weld! It has just been sitting there after I stopped practicing to save some wire. I welded the seats down in my car and want a new project that's not too hard. Give me your ideas!

Topic by Yerboogieman 7 years ago  |  last reply 7 years ago

how magnetic induction data transfer from sensor happens ?

Hi, i want to know how data from sensor is transfered by coil through magnetic induction to another coil ? i know its range can be increased by relay coils but how to append data to the magnetic flux.. its really confusing . pls some one help me thanks in advance

Topic by rockindud 5 years ago  |  last reply 5 years ago

Solder types (electronics), some good info on the topic

This thread on stackexchange http://electronics.stackexchange.com/questions/3/what-are-the-different-types-of-solder-used-for gives overview of different solder and flux types, what to choose as beginner hobbyist and some points on health risks. The answerers do not agree on everything, but despite that there is lots of quality information gathered together. Maybe good to refer to, when some part of the topic comes up in questions section some time again. Enjoy.

Topic by Libahunt 7 years ago  |  last reply 7 years ago

LED, bipolar diffused common-cathode ultra wha?!

I was browsing through one of my local supplier's LED catalogue..Literally overwhelmed by the types of LED out there.. Diffused, non-diffused, super flux, super bright, ultra bright, common anode, common cathode, flashing, bipolar, etc..Anyone care to enlight this electronics noob? Plus some of the LED spec says something like 630nm, 1800mcd, what do they mean? Thanks..

Topic by gyromild 11 years ago  |  last reply 11 years ago

Solder Iron Tips: oily, bubbly coating forming... See Pics

Can anyone explain to me what is happening with my soldering iron? It makes it very hard to remove. I thought maybe flux is getting down there somehow but I've been taking care to alway keep the tip down and avoid any excess solder accumulating on the tip (aside from tinning of course). But it's happening again!

Topic by milsorgen 9 years ago  |  last reply 9 years ago

i want to make my own led bikelight please help!? Answered

Here is the led info: Dominant wavelength max./ 10,000K Viewing angle 120° DC Forward current max. 350mA Peak pulse current - - 500mA Reverse voltage max. - - 5V Luminous flux typ. 56lm Forward voltage max. 4.0V i also want to make my own battery pack and my own light mount!

Question by thecookiemonster 9 years ago  |  last reply 9 years ago

PC Game Idea Contest

Hey Gamers! Its the 1st annual GameNox PC game competition! You could be the next Game Designer! Have you ever had a good idea for a game but didn't want to learn to code games? Well now is your lucky day! Just email gamenox@yahoo.com or visit our contest website. The more information you provide the better your chance of winning. The grand prize winner will receive:   Your game 5 weeks before it is even released. The first GameNox game no one else has even seen!  A free member-exclusive copy of 1945. Virtual trophy. A copy of GameNox Browser Flux. In-game and website credit. 10 random entries will receive: The winner's game 2 weeks before it is released. A copy of GameNox Browser Flux. A free member-exclusive copy of 1945. Offical Rules: No purchase necessary. Making purchase will not increase your chance of winning. Open to legal residents of the U.S. By entering this contest you give GameNox the right to use your first name or a username in game and on GameNox websites. (C) Copyright GameNox 2011

Topic by GameNox 7 years ago

Power Sine Wave Circuit

Hi I am trying to build an economical circuit to power an AC electromagnet. The energy source has to be a battery, preferably less than 24v. The power draw of the electromagnet will be about 500W (the application requires a high-power alternating magnetic flux). I'm thinking of making a sine-wave generator and a simple transistor amplifier with high power transistors. Can anyone suggest circuits for this? My knowledge of electronics is not that great, but I'm quite enthusiastic about this and I believe I can give it a try. Any help will be appreciated. Thanks R

Question by Richy33 8 years ago  |  last reply 7 years ago

Advice on Brass wire soldering

Hi all :) I'm totally new to soldering and want to make a project involving soldering two pieces of 12 gauge brass wire using 20 gauge brass solder.My issue is the solder won't flow and the brass just darkens after a while of holding the torch to the metal.Here's the equipment I'm currently using:Solder: https://www.etsy.com/listing/291425439/brass-wire-... Silver - 38% Copper - 32% Zinc - 28% Tin - 2% Melt Point - 1200º F (650º C) Flow Point - 1330º F (721º C) Wire: https://www.etsy.com/listing/551472422/1-lb-round-...Solid Round Yellow Brass Wire. Metal : # 260 Yellow Brass. Melting point according to seller: 1650 to 1720º FTorch: Micro torch Roburn MT 770PFuel: Bernzomatic ButaneFlux: Oatey No.95Application: I clean and sand (using sandpaper and/or a file) the brass wire, and the solder. Apply flux liberally Apply heat using just in front of the inner cone (flame is totally blue with a slight hiss), starting on the sides of the wire and working my way to the joint.The metal glows but doesn't stay very much.Do I need a propane torch? What am I doing wrong?Thanks so much!

Question by Tooltip 13 days ago  |  last reply 7 days ago