how do you make a boom bag?

The bags that make a big boom

Asked by jacobzman 9 years ago | last reply 9 years ago


potassium nitrate can i make it from pee?

I have herd that you can make potassium nitrate by doing something to pee

Asked by squirrl para 9 years ago | last reply 7 years ago


How do you hook up a battery and PC power supply and a 12v car stereo ?

Hi there I am putting together a diy boom box but cannot figure out how do I can nectar a 500w PC power supply and a 12v battery up so then I can use both of them to use the boom box I've figured out how to use it with just the battery but unsure on how to with the PC power supply please help

Asked by 18R4H1M. 1 year ago | last reply 1 year ago


Instantaneous combustion.

So here's the story. Me and my friend were walking home from school when suddenly he instantly combusted into a huge fireball. RIP Connor Missed by many.

Posted by Hiyadudez 8 years ago | last reply 7 years ago


Does anyone have a good Instructable that involves something going boom or making a big flash?

Hey. I am a new member to Instructables and like things that go "boom" and "fwoosh". Please send me some!

Posted by thebeef2 9 years ago | last reply 9 years ago


I want to make an articulating telescoping boom or pole that will hold about 20lbs and be able to reach 50ft.

I would also like to control it from the ground. I wouldn't mind having to use manual controls but electronic would be ideal. I can't find anything online regarding using hydraulics. Any thoughts? Thanks.

Asked by milkyway312 7 years ago | last reply 6 years ago


ok, i need to buy a reliable ignition source for my spud gun, what's the best one to use?

I need multiple or continuous sparks.

Asked by XER000 9 years ago | last reply 8 years ago


up and coming tut on a working boom box bag :) (only works on ipods )

hay every one just came across this site and i want to make a boom box bag so i thought hmm lets make a tut out of it so cant wait to start and upload just leave a comment if you want to know any thing bout and yes im using old skool boom box (reminder this boom box will only work for ipods)

Posted by sharifsta 8 years ago


KNEX GRENADES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ANY COOL KNEX GRENADES

Posted by KnEx_MaStEr 8 years ago | last reply 8 years ago


Old JVC Boom Box (Antique?)

Hey guys, upon my travels the other day, I stumbled upon an electornics bin or two and one of them happened to have a few "ghetto blasters" or boom boxes as other people would call em. I should really get some better pictures, but these will have to do. I brought it home expecting it NOT to work at all, as usual. It DOES work but in a somewhat limited way. I brought it home upon the conclusion that it felt rather solidly build for such a small system and it looked the nicest out of all of them. The "Problems" sort of speak: * Well for one, the left channel doesn't work, but BOTH the speakers DO work. They both have battery compartments (6 C cells each speaker in series = 9v-ish?) and they both have "extension" cables so you can unhook the speakers and place them elsewhere, the wires are 4 strand ribbon cables and the power is also transported down these wires. I find it rather retarded, because at full length, these wires are a foot long at best?! I managed to get around this debacle for now and plugged the extension wire of the left speaker, into the plug for the right speaker, powering both speakers off one channel. This works half decent, but it doesn't go as loud as one speaker would go, and it gets distorted easier at high volumes. * The tape deck doesn't work. I hit the play button and it DOES indeed make a whirring sound, so my guess is that it needs a new rubber belt for the motor, and I have no idea where to get something that small. Did I mention that apparently the tape deck, actually comes OUT of the stereo, and theres a compartment for a set of AA batteries, thus turning it into a shiny silver 80's walkman. I'm ultimately dumfounded.. * The switches on the top of the unit, primarily the two buttons that change the "fuction" or input of the boom box, are crapping out really bad, like if I set it to radio, I have to raise one switch, and push one down, but it sometimes doesn't work, or it crackles really bad, or isn't as LOUD as it should be, but if I jiggle the switches enough, I can usually coax it into working. It's annoying at best. They are really impossible to get at and they're long pushbutton switches with a long plastic rod that pushes the switch on the board. I really doubt I can get these switches open and adjust/clean them. Should I maybe get the dremel out and but some little toggle switches? * It's missing the little faceplate for the radio selector? Oh well I can still manually tune in a radio station without knowing the number, primarily 94.5 the bull here, it's pretty hard not to miss it blaring some rock or heavy metal. I like this little unit and I wanna fix it up/tweak the crap out of it. If I could get subwoofers small enough, I would upgrade the speakers, reinforce the inside of the speaker casings with epoxy, and maybe dremel some bass ports (would that be a good idea? From what I can tell, it's a totally sealed unit, but it would probably benefit from some "bass ports"). Also, would it be beneficial to "reflow" the amp board? Like theres a board with a transformer and what appears to be a stereo transistor, but like a wide one for two channels, instead of two independant transistors for each channel. So I can only imagine if one side of the chip is working, the other side should too. Would it be a waste of time to reflow all the solder joints or no?

Posted by Punkguyta 8 years ago | last reply 8 years ago


Custom yet cheap iPod Boom Box

No need to spend $200 on an iPod Boom Box

Posted by fstedie 11 years ago | last reply 10 years ago


how to kill the loud annoying boom boom from cars?

i am wondering is there a way of over riding speakers to play my own music or just stop the boom boom coming out the car in front at traffic lights? i remember a broad band am frequency was mentioned once at one place of work but need your knowledge.?

Asked by patternbill 8 years ago | last reply 6 years ago


how to survive a nuclear war

Anybodywant to collaborate on this ible im gunna start working on it again

Posted by goeon 9 years ago | last reply 9 years ago


Model Rocket sabotage

I need a way to sabotage a model rocket,extra points for explosions,house hold objects,undetected,funny,and relyablity

Posted by MajorBromley 8 years ago


A knex grenade launcher? Answered

Well i had an idea, take a little dynamyte firework, and in stead of useing regular knex pieices to shoot, use the firework. Will it work?

Asked by davison112 9 years ago | last reply 9 years ago


Creeper Disasters

What is the worst thing a creeper has blown up or done to you? Mine would have to be activation my base self-destruct system that was (not as far as I knew) through the wall in pinned me against! also, a pretty picture for you:

Posted by Earths_hope 7 years ago | last reply 6 years ago


How do I elevator glitch on Call of Duty 4 Reflex for Wii? Answered

I dont need anybody saying the Wii sucks or anything like that because, frankly, I don't care.

Asked by airsofter1 8 years ago | last reply 7 years ago


On july 4th. America will blow up the moon...

Well Im kidding about the date, but they really are (if its already posted sorry but i couldnt see it in 5 pages) anyone else worried?http://www.siliconvalley.com/ci_12590357?IADID

Posted by okoshima 9 years ago | last reply 9 years ago


boomady boom!!!!!!!! yay!!

Lets make more pyro stuff bigpinecone is the only one comon =)

Posted by zofo300 11 years ago


Pyrotechnics in crash course (abc tv show)?

I'm a pyro myself and I was wondering if anybody who has seen crash course on abc, knows how they do the explosions whenever they crash through something (like when they flip over and see who can slide on their roofs for the longest or smash through a brick wall?) and it explodes in this big fiery explosion .... just mostly how it works.

Asked by MrPyro1010 9 years ago | last reply 9 years ago


Airsoft/Spudgun crossover: Anti-Personnel Explosive thingies

Its a PVC/ABS thing that works like a spud gun, but launches a powder cloud (and potentially BB's). It's remote-triggered, so it can be buried underground, and only the top has to be removed, so it can be permanent. It works in the same way as a spud gun. I'll try to get diagrams up tomorrow, and if I can build it, pictures and an instructable, of course.

Posted by Rotten194 9 years ago


Boom box setup

Hi there I am putting together a diy boom box but cannot figure out how do I can nectar a 500w PC power supply and a 12v battery up so then I can use both of them to use the boom box I've figured out how to use it with just the battery but unsure on how to with the PC power supply please help

Posted by 18R4H1M. 1 year ago


Lama v3 Rc heli Does the extreme tail boom fit the stock chassis and skids?

Does the extreme tail boom fit the stock chassis and skids?

Asked by camb00 9 years ago


New gun

Hi, I'm Rec0n. And this is my boom stick! :P Guess what  features my boom stick has! (The gun is NOT actually named the boom stick) Credits to Killerk and The Dunkis for Two of the features on this gun.

Posted by rec0n 8 years ago | last reply 8 years ago


BOOM!!

I made this just yesterday because I could not find any tuorial that tells you how to make a decent explosion. So after a little experimenting, I got this. Would anyone like to see an instructable for this in GIMP and Photoshop? I updated the picture from one that did not have a backround to this

Posted by Ausm 9 years ago | last reply 9 years ago


Looking for ideas on how to make a boom stick for sound effects (LOUD BOOM!!)

Hey everyone!!  I'm looking to make a loud boom-stick for our local high school football team.  We are the Pirates, and already have a pirate ship in our end-zone, but we are missing a cannon to "fire" after scoring a touchdown.  It has to be pneumatic, because..... well, let's just say explosives or flammables are NOT very welcome on campus!  Anyway, it will not fire a projectile either, but when finished we will mock it up to look like an old pirate cannon.  I would seriously like to make as loud of a BOOM as possible!  Thanks for any help!!

Posted by BrendanM59 2 years ago | last reply 2 years ago


boom blocks levels

This future instructable will show you how to make levels that I make or if you have made on I will collaborate the future instructable with you and you can post yours. if you don't want to be colaborated all you have to do is post a picture of your level ,tell me what map you used ,what story line you edited it from. and I will re create it and ad it to this instructable. please do not post a level unless it's some awesome machine ,or if it can actually be beaten. ideas for levels: try to get Gorrilda to the Gurts but lure her to explode bombs to blow them up. Try to make here take a detour so she doesn't. I made one just like that where it shoots a Gurt into space if you don't stop Gorrilda from detonating the bomb. more coming soon... maybe.

Posted by the_burrito_master 10 years ago | last reply 10 years ago


knex torsion catapult

Hey guys. i just wanted to know if you guys thought i should build a knex torsion catapult. i havent made it yet, and if i do i'll post a picture of it. cheers, n-striker

Posted by SeMi_AuToMaTic 11 years ago | last reply 10 years ago


Flash Powder Problems!!!!!

Every time I use flash powder from firecrackers to try to make a big one all it does is burn up. No matter how hard I try to compress the flash powder all it does is burn up when it is supposed to blow up. Any tips?

Posted by joeskater26 10 years ago | last reply 4 years ago


How can I measure grams without a scale?

For those who have done the measurements for thermite..  I know you're supposed to measure the iron oxide and AL powder by weight but does anyone have the measurements like in teaspoons or whatever because I dont have a scale.. Thanks in advance for your answers.

Asked by jules15 7 years ago | last reply 7 years ago


Looking for cheap LiPo 3s low voltagle cutoof/balance circuit

Looking to add portability to a boombox project I built. Want to just grab a LiPo r/c pack and use a 3a 12v SMPS to charge it with. Know of a good battery protection circuit? This will be going to a non tech minded friend. So I'd like him to just be able to plug in the PSU when he is home without the worry of overcharging and be able to run it until the low voltage cut off is hit without worrying about killing the batteries. Any suggestions? It would be for this https://www.instructables.com/id/DIY-Boombox-Ghettoblaster/ Thanks

Posted by Cancerkazoo 6 years ago | last reply 6 years ago


flash paper!

This idea came from cartoons so bear with me.i have seen some flash powder instructables but not any flash paper ones (or so i think)using tetranites flash powder (https://www.instructables.com/id/Flash-Powder/) and mix with the idea of making paper (http://www.pioneerthinking.com/makingpaper.html) if you substituted "recycled paper" with flash powder could you make a flash paper that would ignite with a poof when lit. my conclusion is that the sponge would absorb the water along with the powder, but adding flash powder after making the paper while its still "wet" in step 9 add a layer of powder and sandwich it. maybe have one end without powder to make a rough fuse.i dont know what do you people think?

Posted by ich bin ein pyro 10 years ago | last reply 7 years ago


How can i convert My Boom box to rechargeable batteries?

OK so here is the Deal I have one of those little cd player/ tape player boom boxes. THe sticker reads "Power Supply: AC~120v 60hz 14w, DC 12v (1.5Vx8 "c" size, UM-2 Batteries) I want to be able to use a reacharge battery. My main goal is to not waste batteries and also be able to charge the battery pack by pluging it into the stock ac outlet. Please anyone help.. Im hoping eventully to mod the tape palyer for my ipod then taking the components and mounting it into a Waterproof pack for a boom boom back pack!

Posted by iathon 11 years ago | last reply 7 years ago


What battery should I use to power a DIY boombox using car audio components? Answered

I've been looking at car stereo boomboxes (DIY of course) and had a simple question on how to power the stereo: WHAT BATTERY SHOULD I USE? I plan on running a Kicker ZX300.1 mono amplifer to power three 4ohm SVC subwoofers (wired down to 1.53 ohms), and a wallmart headunit that I suspect draws around 10amps of power connected to Kicker DS60's. I'm also fairly certain that the amplifier draws 30 amps of power (300 watts / 10 = 30amps). If this is correct does that mean I need to have a battery / set of batteries rated at 40 Ah? (I know I need a minimum 12v to run car audio equipment, the question is based on the Amps Per Hour rating of the battery). I Guess what I am asking is does the power source need to be rated at the "x" Amps/Hour where "x" = the total amp draw of the system? Thanks!

Asked by ashap517 7 years ago | last reply 7 years ago


The Green Glass Door game!!

This is a forum based game in which players (YOU) are trying to get objects through the mysterious Green Glass Door! The keeper's (ME) job is to make sure only the right things get through the wonderous Green Glass Door. So here is what you do... you say a random item, then I tell you whether or not it can go through. Pretty simple right?? forum rules apply and if you already know how to play or the discover the secret, DON'T RUIN IT!!!!

Posted by Deltablazing 10 years ago | last reply 7 years ago


Supply sources

I want to build my own small "boom box". I want to be able to use it play CD's, usb thumb drives, mini plug aux in etc. Can anyone suggest a source for the components for such a project?

Posted by vinstruct3 4 years ago | last reply 4 years ago


Why is my radio so quiet? Answered

  It is a boom box and the volume works perfectly when it's on CD mode. But when it's in radio mode, it's so quiet I can barely hear it. (And I'm not hard of hearing!)

Asked by BikeHacker 4 years ago | last reply 4 years ago


How many peices does the knex musical Ferris wheel have? (Plus spin ride and boom ride)?

IF YOU KNOW PLEASE AWENSER

Asked by OZKNEX22 5 years ago | last reply 5 years ago


Is this stupid? Answered

If you know about those little banger thingies that you throw on the floor and they bang, what are they composed of? I had opened one up and I had found rocks.... also I had set light to one of those nifty things and BOOM! Why did that happen? They combust when they hit the ground, or is my match at a really high temp.?

Asked by knektek 8 years ago | last reply 7 years ago


WHO IS YOUR FAVORITE MYTHBUSTER

Who is your favorite mythbuster and why? Is it Adam,Grant,Kary....????

Posted by comodore 10 years ago | last reply 6 years ago


How do I make a simple, portable P.A. system using a boom box and a microphone? Answered

I have a boom box with dual cassette, AM/FM radio and line-in input.  It also has a microphone input.  I have tried plugging a mic in but it seems to work only when I have a cassette in it and it is on record. What do I need to do or to add to make a simple public address system without running the cassette record?

Asked by blodefood 8 years ago | last reply 8 years ago


Would I fry a boom box radio if I put a tv antenna on it?

Would it fry the radio if I attached an old tv antenna to a radio? I have already attached a loooong antenna to it, but I need more more more!

Posted by Lithium Rain 10 years ago | last reply 10 years ago


how to build a shockmount for this mic holder??

i want to build a boom mic,i got everything BUT.....the mic always slide from the holder. i want to make it stay put with a mount but how? heres the holder http://shop.milgreta.lt/images/cmc002.jpg

Asked by mastermakoko 8 years ago | last reply 8 years ago


Building a boom box, amplifier question?

So i am building a boom box, my plan is to hook up 4 to 6 speakers to this amp http://www.parts-express.com/pe/pshowdetl.cfm?&Partnumber;=320-307&scqty;=1  and then also i am hooking up a woofer to this amp  http://www.parts-express.com/pe/pshowdetl.cfm?&Partnumber;=320-311&scqty;=1 My question is how can i hook up both of these amps to each other and then have my ipod play through both of them?

Asked by maddan417 6 years ago | last reply 6 years ago


Ideal motor for my project? Answered

So I am building a pan and tilt boom rig for a camera. I have the basic idea down but I was wondering if I should use servos or stepper motors. My biggest concern is that when I stop the motor turning at any given angle, It won't rotate back down due to gravity. I am using arduino to process and a joy stick to control which motor turns and which direction. Also, as some additional advice, I was wondering how to control the speed with the joy stick, it runs off potentiometers. 

Asked by DanJames 4 years ago | last reply 4 years ago


how do i post an instructable? Answered

 do not now how to post a catapult?

Asked by boom man56 6 years ago | last reply 6 years ago


Know of a cheap 24v li-ion to run a boom box?

Hello, I've been building boom boxes of various sizes using 24v amplifiers. I can never find medium sized 12v class d amplifiers, so I am forced to used 24v. My favorite amplifier is the tk2050. The inexpensive li-ion cctv batteries I use for my 12v amplifiers can't be used in series because the internal circuitry seems to cut out.  Can anyone help? Extra points for simple, cheap, light. Something around 7 Amp/hrs would be great. Maybe under $30. Oh, and how would you charge it? Thanks!!! Tor

Asked by torclausen 5 years ago | last reply 3 years ago


How would I go about building a portable battery power boom box with 2 tweeters and one large woofer.

Over the Christmas holiday I would like to utilize two tweeters that I obtained from computer speakers and a subwoofer that I obtained from a surround sound system to use in a portable battery powered boom box.  The goal is to makee the whole setup rechargeable (thought about solar panels also, but baby steps) with a usb slot (power only) to charge ipods/iphones and a single aux cable.  I have been experimenting with each of the speakers and I have an idea of what size of box I am going to have to produce the best sound, tips on this would be welcomed as well.  Strong deep bass is a major goal of the boom box as well.  Physical volume controls are not need.  The only button I assume would be for the power. Any tips or suggestions are welcomed.

Asked by ckrupala 7 years ago | last reply 7 years ago


what is the formula to figure out the air space in a boom box?

What times what divided bye

Asked by 9 years ago | last reply 9 years ago


Tying a subwoofer into standard desktop speakers and electronically lowering the pitch (so that it produces deep sounds)

For fun I decided to take apart my desktop computer speakers and convert them to a portable iPod speaker. I have already found a way to convert it to DC power so that I can integrate it into a portable "boom box". I also have a subwoofer that I would also like to build into the boom box but the sound when connected is rather high in pitch. Is there any I can do electronically to lower the pitch so that the bass is more pronounced and deep? Thanks!

Asked by ckrupala1 7 years ago | last reply 7 years ago