Arc Reactor

These are the photos of my arc reactor I built. This particular arc reactor is based off the second model from the 2nd iron man movie.

Posted by 5hockwave 6 years ago

Arc Welding Advice?

My father-in-law just gave me this 295 amp arc welding rig (he's forbidden to use it anymore--pacemaker.) It's complete with mask, rods, etc. I've never welded before, and have a couple questions:-- Any good books or tutorials to recommend?-- I live in an older home (1930s), which has bus fuses and certainly can't supply 295 amps without burning out (or down.)Should I get a separate service installed for the garage? Is it expensive? I've looked on the power company website, and it's typical superficial information for the average customer...

Posted by gmoon 9 years ago

What is Your Favorite Naruto Plot Arc?

The original series arcs: The Zabuza Arc, The Chunin Arc, The Invasion Arc, The Tsunade Arc, The Race Arc, or The Sasuke Arc.

Posted by Wabadee 9 years ago

First or second

Which Arc reactor of Iron Man's do you like better the first design or the second design

Posted by Titanium Rainbow 5 years ago

Mini Tesla Coil

I would like to know how this can be made? I tried to make it using the pdf that was attached but i failed. I have included pics of my failure Can somebody please help me?

Posted by deathnoteviewer 7 years ago

Help: Opening/Cleaning a portable air conditioner

I don't think this is the right place for it but I'm desperate. I have a portable air conditioner (Whynter Arc-14s) and need to vacuum and remove mildew from the inside, especially the fan blades. Now, I did contact Whynter support (e-mail) and they were able to help me remove the screws with a PDF guide. This allowed me to remove the front. Unfortunately, the back case won't come off, even though I took out all screws I was directed to. They couldn't assist me anymore after that. Now I'm stuck, summer is ending and I never got to use it this year. So has anyone opened up a Whynter Arc-14s portable a/c?

Posted by CuriousRiz 1 year ago


Potentiometer ARCING inside :( Anybody know what's going on  ? I'm using a 100k to control a 50k ohm load . i smell lots of smoke . It's a LM386 with pots at the output section to a 8W power amp .

Posted by Thereyouhaveit 7 years ago

3d printed PCB

I was wondering if you could make 3d printed circuit boards using an arc welder of electroplating method by connecting a copper "welding stick" to the extruder and a ground clip to the board.

Posted by JoshsInstructables 5 years ago

Tips on Welding

This is s a general forum for people to post questions and tips they have found over the time they've spent welding My question/tip is this - I recently had to weld two pieces of oddly shaped steel together. Placement and alignment was important for me but the shapes of the steel pieces made clamping them together a bit of a mission. My solution was to position and hold the pieces of steel using prestik (probably the south african equivalent of U.S. bluetack - maybe chewing gum could work) and then the steel pieces didn't move while I tacked them in place. My question is obviously whether this is a questionable practice because of fumes (I didn't notice any) or weakening of the weld from the prestik inclusion (it seems to be holding quite nicely though and the piece is now the switch activator for a press strip feeder. If you can't think of any problems then its a tip

Posted by djmachet 9 years ago

DIY Iron Man Arc Reactor Overview

With the new Avengers movie out in theaters I decided that i had to film an overview video on my Iron Man arc reactor. So go here and watch that and to find out how i became Iron Man

Posted by oicvideos 6 years ago

audio amplifier for singing arc speaker, 110v design

Okay, I'm planning on starting on a plasma speaker, I know somewhat how I want to build it. My neighbor has one of the old school neon sign transformers for sale, he wants next to nothing for it. So I intend to use that to simplify finding materials. I am incapable of designing a circuit, so I am asking for help. What I need is for somethng to control the 110v for the transformer based on the audio input. My alternate idea was to use two NSTs and have them become a stereo channel unit. I do prefer that idea myself. I simply have no idea how to control the sound from the arc without taking the arc out. Honestly, my electronics knowledge in circuit design made me think a really big relay would work. Until I realized that was stupid. Anyways, my preferred idea is using a project box to contain a circuit, fused around critical areas to prevent the music device being blown up on accident or anything else bad happening. A stereo plug, with one transformer being the left, the other the right. I also want to try to drive either the low voltage or the 110v computer cooling fan type things so that there is an airflow through the arc.  Please help me-I can't design circuits for the life of me, and I would rather this work out. Thanks!

Posted by Nyanman 6 years ago

robotic arm arc welder

Is it a robotic arm capable of arc welding feasible for a diyselfer ? I spotted some robot arms for cheaper than 200 $ over the web . Vantages for the operator would be no weld fumes breathing , no uv rays and such ..

Posted by gabdab 5 years ago

Reviews : Motherboard Clock-Cum-Night Dim Arc Light !

Hi, I have created motherboard clock- cum- night dim arc light using old computer and mobile phone parts. Looking for some reviews and tips.  Please suggest. Thanks Richi

Posted by RichiV 3 years ago

Plasma Speaker Kit

Hey Instructables, We're StudentRND, a group of students in Seattle, WA that build cool stuff over the summer. We've taken our time over the summer to build a plasma speaker, and now are offering kits on Kickstarter! (As seen on TechCrunch and Physorg) What's a plasma speaker? It uses an electric arc to vibrate the air to play music! View the Kit <br>

Posted by studentrnd 6 years ago

Using Plasma Arcs to Deal with Trash

"A Florida county plans to build a facility to get rid of their landfills, generate electricity and produce construction material, all using a process called plasma gasification which vaporizes garbage at temperatures hotter than the surface of the sun. The $425 million facility expected to be built in St. Lucie County will use plasma arcs to turn garbage into gas and rock-like material. It will be the first municipal plasma waste processing facility in the united states, and the largest in the world. Expected to be completed within 2 years, the 100,000 square food facility will process 3,000 tons of waste per day. Fed not only with waste being produced currently, the facility will also begin to process the waste already in the county landfill. Estimates predict that the entire volume of the existing landfill, 4.3 million tons of trash collected since 1978, will be processed within 18 years."Read More...It almost seems too good to be true, what do you think?

Posted by Weissensteinburg 10 years ago

Delayed again!!!

I have been working on my plasma speaker for a long time, after I got everything working, I was about to take a good video of it working. But just then, the MOSFET exploded, and made a huge puff of smoke... Dang! Delayed again! I made and completed the instructable on making a plasma speaker (some of you might had seen it as you are subscribed to me), but I just need a video to prove that the plasma speaker is working. I was going to post the instructable today, but the MOSFET delayed it... :-( It may be a few more days before the instructable is published...

Posted by Plasmana 9 years ago

Constant arc with a taser...need help!!

Can anyone give me some help on how to make a constant arching spark across 2 electrodes like a commercial taser?

Posted by PyroMonger 10 years ago

Reviews : Motherboard Clock- Night Dim Arc Light !

Hi, Please refer to These are created using old computer and mobile phone parts. Please do feel free to express any types tips  or suggestion you  would  like to give. Thanks, Richi

Posted by RichiV 3 years ago

Arc reactor for girls :)

Hi guys, I hope this is the right place for this! I've been scouring you tube and Instructables for the last hour trying to find an arc reactor build that's small enough for a girl. I'm doing a Pepper Potts/Rescue build of sorts and would definitely feel more comfortable going from a tutorial for the reactor, but the problem is, all the reactor builds out there fairly dwarf me and stick out really, really far. Does anyone know of any smaller reactors? Don't have to be screen accurate, as this if for a Pepper that doesn't really exist, but definitely looking for LED lighting. Thanks!

Posted by greyseas 6 years ago

Batteries playing music?!

I have built a plasma speaker and I am using it for my science fair and while I was listening to my speaker I realized that sound was coming from somewhere besides the speaker(arc). I disconnected the arc and it was coming from the batteries! Is there any way to prevent the batteries from playing the music as well? Is it feedback? I'd like the science fair judges to only hear the arc, thank you. Also I used this guys instructible

Posted by firebird2000 6 years ago

Sildeshow Images Do Not Appear

I published a slideshow and the images do not appear when I view it. I took a screenshot, and have attached it. The slideshow is "Simple Flyback Driver Gives Powerful Arcs"

Posted by Xellers 8 years ago

Seam Tracking Sensor

Hi All, I'm Duy Dang- Vietnamese student in Ho Chi Minh city. I'm doing a robot welding project but i don't know where to buy a Seam Tracking Sensor (Arc Sensor). Can anyone help me?  Thank you very much.

Posted by Duydang 2 years ago

cheap time bomb (fireworks detonator)

Heres my idea: Take a cheap dollarstore or walmart watch with an alarm. wire a capacitor where the little speaker/beeper thing it would store up a small charge and then have it arc or a fuse to light it. so you set the alarm for the time you want it to go off, it goes off, builds a charge, arcs over the fuse and lights the roman candle, firecrackers, whatever you want. would this work? are there any ways of boosting the power of the arc or making the fuse light easier?

Posted by aaronx 10 years ago

Looking for Reviews : Motherboard Clock with dim arc light

Hi, Please refer to  These are created using old computer and mobile phone parts. Please do feel free to express any types tips  or suggestion you  would  like to give. Thanks, Richi

Posted by RichiV 3 years ago

Small self-contained energy source

Hello,            I am interested in making a energy source similar to iron man's arc reactor in the fact that it is small, self contained, and and powerful. I would like it to be hand-held, but I can deal with slightly larger or even desk size. It needs to be long lasting. I am well aware that an arc reactor is fictional, but I just need something that may be similar. It can be a large project (I have time) but needs to be not super expencive. Around $500 is the max I can go for!  I hope someone can help, 13islucky

Posted by 13islucky 6 years ago

Disposable Camera Hack?

Hi, im building a capacitor bank for my coilgun, and I have 17 disposable camera capacitors in them. (wired in parallel (or whatever one means + is atached to +, and - is atached to -)) But for some reason wenever I start chrging it, after a little wile, it makes a huge spark across one  of the capacitors. That probobly means its arcing right? but its only 300 volts (there wired in parelell so only the amperage goes up, not the volts).  I then tryed to charge the caps to a point before they arced, wich took about 1 min (the battery is full) and my ammo only shot 3 inches! 17 capacitors, charging for 1 min, and it slid across the floor 3 inches! I have no idea what im doing wrong. Im using wire from a microwave motor  (wich is realy small) for the coil, and its 5 layers thick, wrapped around a hollowed out pen. So, to sum it all up, here are the main problems: 1) the caps arc when charging 2) the ammo only goes 3 @#%!ing INCHES!!!!!! arg! Ps, i heard someware, that if you have enought amps, it will arc even with lower voltages. Maby thats whats happening?

Posted by Stuffses 8 years ago

Bad result from the CFL driver for the flyback transformer.

Ts been a while that i have tryed to make a nice arc from my 25 watt cfl driver, the only pin on the cfl that are working are the pin 1 and 4, i i have attempted to connect the pin 1 and 2 toguether and 3 and 4 toguether, i connected both of the mix on the flyback and i could get a huge arc, but i plugged it like 5 sec, and i stopped touching the HV output with the 0v ground  for like 2 sec then my cfl has exploded like a bomb, there was lound noise, and made a hole in my table. so im not gonna try that again. Anyway i can only get 0.5 cm arc from the flyback, and i dont know what to do to make it larger, i know that the 25w cfl can do better. Any suggestion? Sorry for my bad english.

Posted by insistent 8 years ago

Paper airplane of the future

Make a future paper airplane that are not from the original design. Diffrent shape Works Here are the paper airplane that you should not looks like and copy with: Arc Lite Glider Skywarrior

Posted by wat. 7 years ago

Carbo zinc rods?

Hi, i saw an instructable on arc lights but i cant find out wat batterys will have a carbon zinc rod. can someone please help. also am i suppose to use alkaline batterys?

Posted by DELETED_DELETED_kruser495 11 years ago

High Frequency Alternators

Look at a picture of some arcs from a common spark-gap Tesla Coil, and then compare it to the arcs from a solid-state. What makes the two so different? The difference comes from the Solid-State Tesla Coil to operate in CW (constant wave) mode. This means that its power supply is uninterrupted, whereas in a spark-gap type, power is being switched on and off hundreds of times per second. If the output terminal of a CW coil doesn't have a brake out point, no corona or spark will occur. For anyone who's investigating wireless power transmission or Tesla's version of radio, this is a very helpful feature, since corona only wastes energy. And if it does have a brake out point, it can create some pretty interesting spark displays, as I mentioned above. An arc to a grounded object increases the current in the arc to such a point that it turns into a white-hot "flaming" discharge. All-in-all, a CW type coil is a pretty interesting kind to observe. But solid-states can be pretty difficult and annoying to build, and expensive as well. Since solid-state technology obviously was not available to Tesla, he found a different way to operate his coils in CW mode- a generator that was specially designed to produce radio-frequency power. He had originally created it for high-frequency arc lighting. Today, I have seen absolutely no coils run by a high frequency alternator. Of course, an alternator would be admittedly difficult to build, but since it could probably deliver more power than a solid-state coil, it would be worth it. Does anyone know if there are any companies that still make these alternators? Would anyone be interested in recreating it? Should we even bother? Thank you for listening. Peace!

Posted by ElectricUmbrella 9 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

art welding

I want to get into art welding and don't have any welding experience. Where can I go to get welding instruction and guidance for small projects. I don't know the difference between a TIG, MIG, or Arc welders. Which one is the best to learn on?Not intrested in jewelry. Thanks

Posted by bouche 11 years ago

AC MOT Welder Voltage Issue

Hello everyone, I've been working on an arc welder based on instructables like but I need some advice. Most tutorials on here suggest two paths to success, either winding two MOTs with as much 10 gauge wire as possible, hoping that the voltage output in series will be close enough to 40V, or using multiple small transformers, also in series. The problem is, all this series stuff really cuts down on the available amperage, so I'm wondering if there's a different way to get high amps and volts simultaneously (obviously without surpassing the available 2400 Watts, energy in = energy out). I think I have a way to make two MOTs which run at low voltage but high amperage also have high voltage. I've made a high frequency circuit to assist in starting an arc, which you can see attached (it works phenomenally, and I've been able to make it run on 1 amp). Since the output on the HF part goes through a torroid at the far right (where it meets the welder's output), would it be possible to wind the torroid with, say, 5:20 turns, to basically take the 120A (10.8V) I get from the parallel-connected MOT transformers and overlay a low-amperage but higher voltage on it, to make arc start/run easier? The welder just won't run at 10.8v, so other than rewinding the secondaries, what about jumping the voltage up a little via the output torroid?

Posted by reakter 5 years ago

Microwave Oven Transformer Stack

This is my Microwave Oven Transformer stack. It is currently current limited using a heater. There is approximately 10 36 watt 4' fluorescent tubes in a string around my garage that I am lighting with the MOT stack .My MOT stack contains 4 Microwave Oven Transformers connected with their outputs in series and their inputs in parallel. They are mounted on plastic cutting boards. I am using threaded rod to hold the layers in place while the PVC pipe covers the threaded rod and it also supports some of the weight. The output of this is approximately 8800VAC at 350mA The Input voltage is 240VAC Thanks for looking, Please comment and remember to rate if you like it! Just say if you want any pics of a certain thing, e.g. the MOT stack arcing to wood/metal etc. (I will try to get more pics of it arcing soon but it is hard to use a camera that has like a second delay before it takes the actual pic from when you press the button, stupid camera) ********************************************************************************************************** Edit The new pictures are of an arc between two carbon electrodes. The other pictures are of 12 fluorescent tubes connected in series but arranged in parallel so you can see them all

Posted by thermoelectric 8 years ago

I got a NST!

I recently bought a 11kv, 30mA Neon Sign transformer. I can get nice arcs off of it and everything (maybe about 2 inches? when rectified it makes shorter high pitch arcs), but I'm wondering about protecting it. after a couple hours of playing with it there was a loud pop in the case and it stopped working. I opened it up (it was held together by rivets, I just drilled the rivets out) and it's a switched mode neon sign transformer. I thought it was a bit light! So I found a (transistor? To-220 case) that had it's face blown off, luckily I found the other piece and I'm going to order the component and replace it. So, is there a cheap easy way of preventing this happening? While opening the case I added a number of saftey features, a saftey switch, and a "ON" indicator.

Posted by guyfrom7up 9 years ago

Plasma Arc Waste Disposal

I was watching the local news earlier... and they started talking about a new waste plant being built in Ft. Pierce, Florida.Basically, they vaporize the trash and sewage sludge under a vacuum, and use the by product gases as fuel for the plant and power turbines. Steam is going to power a local juice plant. Solid by product (rocks and such) can be used for construction etc.On top of that, the by product gas - when burned - is cleaner than burning natural gas or garbage. Even if you think climate change is a myth, I think you can appreciate cleaner air to breath :P This plant is going to eat up the local landfills too :)I just thought it was pretty cool. This is the first plant in the United States and the third in the world (other two are in Japan and are much smaller).Comments?

Posted by trebuchet03 11 years ago

Instructables Booth at Maker Faire Day 1

Check out some pictures from the first day of Maker Faire. One day down, and we're already exhausted! We've been tattooing consumer electronics, trying to pop balloons with plasma arcs, and introducing people to the site. If you're in town, come say hello.

Posted by ewilhelm 10 years ago

diy welding mahine cable size?

Hi guys i wanna make a welder. i checked there the king uses 8 awg copper cables for the winding of the transformers.  here (namibia) they seem to have only 6 or 10 sqare mm cables. can i use 1 of those?

Posted by kefflon 1 year ago

Plasma Torch

Hello everyone, I am trying to build a plasma torch. What is a plasma torch you might ask? A plasma torch is used in a process call plasma arc gasification. I want to build a small scale working prototype for proof of concept. If anyone could help, it would be great. I can collect different MOTs or NSTs if necessary, just fill me in. Thanks for any input or direction.

Posted by axel4401 7 years ago

Electrical excitement (not)

I was going to fry some potatoes, but my electrical ring failed with arcing, smoke, noise & sparks... I'm not happy. I've got the ring to replace, a pan, and I've got sooty-oil to clean up. And no fried-food. And the place stinks of burned-oil. And I've lost / spoiled half a bottle of fresh oil. Oh, and I'll have to pay for the electricity that did this too. And I need some 30A fuse wire.

Posted by lemonie 8 years ago

brazing/welding dilemma

I'm building a cnc machine and I just bought a whole bunch of steel vat a surplus store. I need to braze or weld them together, but I can't braze since the objects too big for my propane tank, it disipates tthe heat to fast. I can't afford an arc welder. What should I do? I don't want to use nuts and bolts because that adds wiggle to the machine and I lose all of my accuracy.

Posted by guyfrom7up 10 years ago

Mutant Baby Costume, DIY Lightsaber, Silent Hill Nurse Costume

Mutant Baby Costume DIY Lightsaber Silent Hill Nurse Costume Easy Catwoman Costume Cardboard Armor Predator Latex Mask Make Angel Wings Iron Man Arc Reactor Mad Hatter Hat Christmas Story Bunny Costume Harry Potter Wand Kids Link Costume Spooky Tesla Radio KISS Costume Simple Toilet Paper Costume

Posted by randofo 7 years ago

Popeye Costume, Wearable Sushi Bar, Little Shop of Horrors Plant

Popeye Costume Wearable Sushi Bar Little Shop of Horrors Plant Glowing Tombstones Minotaur Costume Fairy Costumes DIY Aluminum Foundry LED Tin Can Lantern Iron Man Arc Reactor Free Tactical Pressure Switch Ikea-Style Lotus Lamp DIY Magic Mirror Make a Dragon With Kids Arm and Leg Extenders Duct Tape Top Hat - 82 2nd St. - San Francisco, CA

Posted by randofo 7 years ago

Crater Cutter kit

My challenge is to produce a reliable 10kV spark generator which will cut me craters with a plasma arc. You can see the general idea on my blog: The 10kV spark generator is my missing ingredient, so Instructables please step forward with a design! Once running we can re-create any planetary feature by means of Cathodic or Anodic erosion. I believe this is a genuine alternative to the current 'impact crater' scenario, so favoured by astronomers.

Posted by Cigarshaped 2 years ago

star wars lego

One day i decided to take out my tonnes of lego i had in my attic and after seeing a star wars lego hailfire droid selling for £100! i decided to make my own models, i also noticed that the models that were being sold by lego didnt use many original parts, so i have made my models and shall i post them? your call!

Posted by bedbugg2 10 years ago

home made MOT pork chop!

I have a crazy idea to make a transformer for a tesla coil useing two MOTs that are exactly the same, Then cutting them so you only have the 2 "E" core sections, Pull off the primary off one, flip the secondry so its out of phase, put the two cores together and clamp them so they cant move. put some extra shunts in to help limit current, hook up the primary to a variac and turn up the power slowly and test the arc. PORK CHOP! pole pig?

Posted by inductionheat! 8 years ago

Is it possible to make a specialized spark gap device that operates similarly to a transitor?

I have a serious issue with utilizing an H-bridge to switch polarity of high voltage electromagnets. The voltage is roughly 110 DC rectified from mains. Every mosfet I use has exploded when I tried to switch the mosfets. I tried using relays but they keep arcing and tripping my breaker. I would very much like to know if it was possible to make a spark gap that works similar to a NPN transistor.

Posted by 50ul84n3 7 years ago

BIG electro magnet uses?

So i have been taking apart alot of electronics, looking for sweet pieces for my arc reactor im building and today i decided to take apart an old Goulds jet Pump.  Inside i was please to find all this coperwire. I just LOVE the look of this thing, and i know people always build coil guns and all that cool weapon stuff. There has GOT to be a cool use for this, other then giant paperweight.   Any suggestions.  Here is a photo of it.  That copper goes all the way through it. and looks the same on the other side.

Posted by valmont325 6 years ago

Display multiple softballs

Can anyone please help? I am looking for a way to display several softballs for my daughter. I was hoping to find a way to mount a length of flexible clear plastic tubic, approximately 10" dia. on an arc and have an opening in the top to insert the balls and have them then roll to either side. The balls have stats written on them, so I would want to be able to manipulate them afterwords so the writing would be visible. My first problem is find 10" dia. flexible clear plastic tubing. Any suggestions would be greatly appreciated. Thank you

Posted by feign 11 years ago

Problem: 2D template design software

I would like to make a (hopefully) really cool instructable on a paper model I made recently.  However, I would like to make the drawing out more precise by using a computer to make a template which I can then print out (it would also be good for putting on the instructable).  I need the program to be able to handle circles, arcs, and straight lines, and be able to dimension them all.  Could someone please recommend a nice program (or website) that will do what I need it to? Thank you in advance, me.

Posted by dsherlock 6 years ago