How can I make a dry ice blasting machine?

I have seen commercial machines that use compressed air to shoot a stream of dry ice (CO2) pellets or shavings at a dirty, oily machine to clean its surfaces. Unlike sandblasting, the CO2 sublimates (goes from solid to gas without passing through 'liquid') and leaves no residue other than the crud it blasted off. It can even be used on machines or electrical panels that are powered up! But these machines cost multiple $1000s. Anyone have a plan or experience with a DIY version? Thanks.

Asked by wbogen 9 years ago


Best Way to make uniform crushed glass at home

I obtained an abrasive blaster and I decided to use crushed glass as the media. I have a steady supply of beer an wine bottles that I can crush but have a slight problem. I am currently useing a capped steel pipe and a baseball bat to crush the glass. The results are anywhere from large quarter sized chunks to dust. I want to have crushed glass roughly uniform in size as well as to be able to make larger or smaller sizes depending on the application (rust, paint, etching, etc). Does anyone know of a way a DIYer could make a uniform crushed glass abrasive to use in a blaster?

Posted by drakesword 7 years ago


How to make a blasting cap? Answered

How to make a blasting cap?

Asked by coolpizzadude 9 years ago


Blasting Cap help

I was wondering what others use for their cap bodies, i have been told to use spent brass to hold the HMTD. any better suggestions?? ANFO doesnt like brass so i was wondering if AL casing or heavy paper casing would work better? Thanks.

Posted by joeskater26 8 years ago


can a samsung blast be paired with an h500 motorola bluetooth?

My phone simply wont find it.

Asked by 9 years ago


nitroglycerin blasting cap ?

I was wondering if there i such a thing as a nitroglycerin based blasting cap with no other HE (high explosives ) or primary explosives. products of nitroglycerin would be acceptable but as far as i know it only form more HE's so if this is possible please let me know

Asked by subtotalkiller 4 years ago



Can you do KipKay's alarmclock blast hack with an NES Zapper instead of a Sega Phaser?

KipKay did his video with his weapon of choice, the Sega Light Phaser. But my weapon of choice is an NES Duck Hunt Zapper. Will it work?

Asked by Mr. Squishy 9 years ago


Blast Nyan Cat on a Canoe Trip? Answered

Ok, so i'm going on a canoe trip with scouts, and i'm just wondering how i can constantly blast nyan cat from my canoe. I can't bring an ipod, and it has to be somewhat water proof. NOTE: I will only use this to torment people SOMEtimes.

Asked by the poodleo 7 years ago


modding an oral irrigator to a blast cleaner?

I got the idea when i saw this: https://www.instructables.com/id/Make-a-modelers-orbital-sander-out-of-a-toothbrush/ But because i do not own an oral irrigator, i don't know if it's possible. Is the power enough to mod it into an blast cleaner? is the nozzle big enough for any material (sand or backing soda or whatever)? I am unwilling to buy an oral irrigator for relatively much money only to find out that it has no use... it would be useful for postprocessing my 3d-prints.... thanks for answers jodock

Asked by jodock 6 years ago


how does one build a electromagnetic blast device that knocks out electrical implants in the human body Answered

Electrical implants were put into my body without my permission,they inflict pain at strategic points in the body there small enought to be inserted with a needle..can they be neutralize electronicly..dennis o'donnell,bright6eyes@verizon.net, #6317890140

Asked by woo6dy 9 years ago


My modded nerf guns

This is my nerf arsenal. I don't have much because I'm just starting out. Although I only have a few guns, I have one of the rarest and most prized guns, the crossbow. All of them are modded except for the blast fire.

Posted by bakenbitz 9 years ago


blasted "loading bar" right in the middle of photos

Thanks to the people who suggested fire fox- I'm instructed to not fiddle with the computer since it is shared.  some times the "loading bar" appears, and sometimes it doesn't.  My husband does clear out the cashe, and we have the latest Norton anti virus program installed (sadly we have a PC) I would like to have an apple.  any other suggestions?  Thanks :0)

Posted by porcupinemamma 7 years ago


Great ideas to blast a teen out of bed?

I've posted my top 10 evil techniques, but I know there are more AWESOME ideas out there.    https://www.instructables.com/id/Top-10-Evil-Techniques-to-Get-your-Teen-out-of-Bed/ I plan to update in a couple of weeks, and would love to include your ideas.  Let's all have some fun with this!  :-D

Posted by cburrevans 7 years ago


Annoying Popups

Does becoming a premium member stop the annoying popups on this site?  The current trend of being BLASTED from every angle by ANNOYING advertisements is over the top.

Posted by christopher.kytle 1 year ago


Using CO2 for a Jetpack blast off smoke prop?

Hey Guys! I'm making a jetpack for this upcoming Halloween. It's going to have lots of moving parts and cool stuff using an arduino, but the most important feature I want is a thick blast off smoke effect. I have been looking online, and it appears to me that a CO2 fire extinguisher would be great. However, these are expensive and not easily modified to be electronically triggered. I've considered a paintball CO2 can and a Sodastream. Will either of these give me the effect I desire, and is this plausible? I'd like the smoke to be at least as thick as the stock photo I attached, hopefully thicker and stronger. Thanks! I'll be sure to post pictures when I finish.

Posted by turtledrake 4 years ago



MythBusters YouTube Live

Discovery Channel's MythBusters blast Jamie with 20,000 paintballs with Leonardo 2.0 at YouTube Live.

Posted by comodore 9 years ago



Candle Cannon

These guys built a huge version of the AirZooka and are able to send blasts of air strong enough to knock out candles at well over 100 feet. I want to make one! via Neatorama

Posted by fungus amungus 10 years ago


Suction cups

Does anyone have a good technique for reattaching suction cups in the shower? You know--they hold a back brush, shower cap, razor, etc. The blasted things keep falling off!

Posted by zoo lady 10 years ago



Is anyone in need of a paper hornet grenade?

This grenade is a awesome little thing it has about a three foot blast radius but keep in mind it's still in the devolopmental stage.

Asked by DELETED_DELETED_HIVLTGE1 8 years ago


Calling all Potato Gun Aficionados and wanna be Combustion Scientists

This is message to anyone who enjoys hearing the sound of forced combustion, or better yet, the loud crack of a potato gun being fired. My co-conspirator and I are in need of some mathematic assistance. Ideally we are looking for a “magic” formula concerning barrel length to blast chamber ratio for optimal performance. The ideal fuel would be propane or butane. We have been using a 4” by 33” blast chamber coupled with a 3” by 44” barrel. So far, we have had significant success with this combination, but are curious if there is a better ratio to use. With our current specs, we are able to shoot a 3 – 4 lb. ball of plaster over 250 yards (this is the carry distance, not the total distance traveled) at a 47 degree angle. If anyone out there knows a formula or has advice on Blast Chamber to Barrel ratios we are greatly interested to hear what you have to say.

Posted by benihana 10 years ago


volumizer that is 2.50 ID by 6 inches long would a volumizer designed for a paint ball marker give me the same blast

I have it attached to a tee shirt cannon?I pressurize it to 600-800 psi

Asked by 426charger 8 years ago


Did anyone around here attend notacon this year?

Just wondering I did and had a presentation on camera stuff. I know I saw the tv b gone guy anyone else go and have a blast?

Asked by jeoncs 9 years ago


Transformer Sandwich

I have a project for college... The assignment is to make an edible or non edible sandwich. I've chosen to make the non edible and I think I'm gonna call it "My Robot`s Hungry" The materials I'm thinking of using are.... *Rubber *Speaker wire *Masking tape *Duck tape *Sand paper *Metal sheets *Wood I have to make it neat because I`m a bit of a perfectionist in general when it comes to these things...Design and wot nots ^^, I have some wood glue and my Dad who is fairly handy.. Anybody that can blast out an idea...any kind...Blast away... it will be a bit of fun and interesting to read... Whoop whoop whoop Tralena

Posted by Cheena Tralena 6 years ago


At The Moment: 'What Are You Listening To?'

Whenever I am on the computer, I usually have iTunes blasting my ear drums to death. So, what are you listening to at the moment? At the moment: The Vines - Ride

Posted by bumpus 9 years ago


Would this EMP cause temporary or permanent damage?

I am thinking of making this EMP. Would this EMP cause a temporary damage? Or Permanent? http://www.wikihow.com/Build-an-EMP-Generator And if someone can find out the blast radius, that'd be great.

Posted by ArcAngelZz 5 years ago


Hi, i have an idea for a more eco-friendly blast furnace.

 Its a simple furnace except with a top leading to a chimney (like a fireplace). Halfway up there is a change in the pipes, instead of going straight up, it leads slightly downward til it reaches a pool of water, where the pipe emits the smoke into the water. After wards the smoke will come out from the water and up into another chimney leading straight up to escape. Do you think the water would be able to clean at least some of the air impurities? Here is my picture for a basic idea. Comments and ideas are welcome.  P.S. -I got this idea from a bong (no i'm not a pothead nor have i ever tried).

Asked by TALLJ29 7 years ago


shooting targets

Can someone figure a way of making targets like those shoot n see targets that show green paint wen hit or wen hit show some sign of being hit

Posted by soccerboi369 9 years ago


chemicals

Anyone kno where i can find solidox,potassium chlorate,400-600 mesh aluminum powder or any other kind ,potassium perchlorate, 223 casings, mercury fulminate powder, or a non-electrical blasting cap. it would be really helpful if you could tell me where to find these besides online

Posted by spification 11 years ago


biodiesel fuel shed concept

This is a Biodiesel Fuel Shed concept i thought of. It would be partly underground, have an exhaust hood, and a wet chemical sprinkler system. I thought of it for safety of the user/s in the shed, and also safety for the residents in the houses in the blast radius itf there were to be a catastrophic failure.

Posted by theboygenius 5 years ago


How can I hook up cheap dollar store headphone cord with jack to a mini speaker from a hallmark card? Answered

I keep playing around with it and eventually i get a short blast of music and then lose it. i really need help

Asked by DoctorDv 6 years ago


Rapid decompression cooling? Answered

Is a possible way to super cool a gas (nitrogen or oxygen) to liquid temperatures by using a sub-zero tank of 5000 psi compressed air to blast that gas over a radiator and therefore cool the gas in the radiator to a liquid, then quickly pump it to a chilled high pressure insulated tank.

Asked by jj.inc 7 years ago


Exploding color pigments - need ideas to make

Hello everyone, I am working on a film project and I need to make small explosions of colored pigments and/or powder. Below is a link to a few sample photos of the affect that I am trying to achieve. http://photogrvphy.com/pedro-aguilar-bang/ I have tried many different techniques from impact to compressed air. But I am not getting the shapes that I am looking for. I am thinking  that the best technique might be some sort of controlled explosion. This could be something detonated within a pile of the powder or potentially (and more complicated) and fully concealed shell that includes the powder. I will primarily be shooting straight down above the powder so it really only needs to explode up and out. And again, these are relatively small blasts. I would estimate the powder blasts in the images from the link are only approximately 2' in width at the most. And help would be greatly appreciated!

Posted by jedikremer 2 years ago



How to positively charge something? Answered

I was sitting here in the middle of a thunder storm and I had a thought, usually the clouds are negatively charged during a lightning strike, so, if you used a large cannon to blast a positive iron ball into the air, you may be able to get lightning to strike it, then collect it to see what the lightning did. So, you would you charge a cannon ball? 

Asked by jj.inc 6 years ago


Dose anyone know how to make a emp generator? Answered

I have been looking for plans for a good emp (as in electromagnetic pulse) plans for months. I need it to be small, but effective. Also I would like it to create a field for a little while and not just a quick blast. Any  suggestions of where i could find plans for some thing like that?

Asked by Tobor 2.0 7 years ago


Maker Faire Light Doodles

We participated in the recent bay area Maker Faire where we taught hundreds of people to draw with light taking over 800 pictures. It was a blast.Were any of you there? I saw the guy that made the coffee press.You can see my personal favorites on Flickr at The Best of Maker Faire Light Doodles.

Posted by unklstuart 10 years ago


I need help explaining the shape of this nebula Answered

Http://www.esa.int/spaceinimages/Images/2014/10/Butterfly_death_throes This image is the "Butterfly Nebula". I'm having trouble understanding it's shape. According to the accompanying blurb, the shape indicates a "bipolar nebular, where fast-moving gas can escape more easily from the poles of the dying star than around its equator. This creates a lobed structure reminiscent of an hourglass, or, as in this case, a giant butterfly." But... why? Why can the gases escape more easily from the poles?  Why is it harder to escape at the equator? Surely, if it was blasting from the poles, we would see a more linear shape, long "beams" of material shooting out of each end?  This image looks to me as if material blasted away from the equator, but parallel to the poles, almost as if the two halves of the star's surface were peeled apart, like turning half an orange skin inside out. Anybody got a borderline high-school/university level explanation for the shape?

Asked by Kiteman 3 years ago


Making a cheap home made laser tag system : How?

Ok guys, help me brainstorm here... there are no Laser Tag or alike projects on Instructables... how about it? Anyone up for the test? A "simple" Led/Laser Gun and a target that once hitted by the blast, sounds an alarma or flashes a light or something of sorts... what about it?

Posted by Ricardoaraujo 9 years ago


Caster/Crazy Wheel on a car?

So I have this great idea, at least I think its great essentially you buy a very cheap front wheel drive car, take off the rear wheels and put two giant casters on it.  I think it would be a blast, the amount of G forces you could pull with a 1 cylinder engine would be insane.  What are your opinions, tips, ideas? Have you heard of this before?

Asked by jj.inc 5 years ago


The Pulse Jet Bicycle that Goes up to 75 mph

Pulse jets are fun to watch and you can get an intro to making one with a jam jar. Make a big one and it can be incredibly freakin' loud. Mount it onto a bicycle like Robert Maddox did and you'll get speeds up to 75 mph as you blast your ears into loose bits of jelly. Link

Posted by fungus amungus 10 years ago


MRE Heaters

When I was younger, we played with the heating packets from MRE's (Meals, Ready to Eat - Military field meals). My favorite thing to do was to put a pouch inside a plastic container (with a screw-on lid), add water, tighten the top, and wait for the large boom. Here's my question: The heaters release moderate amounts of hydrogen gas once water is added. Of course, with an enclosed container, it will quickly reach pressures adequate to blow a bottle apart (wear eye-wear). But once I joined the military we would add a flame source, so we could see just how large the blast was. I wasn't so sure that flame would actually add anything to the gas explosion. They were sure of it. Is anyone aware if: The presence of flammable gas (exploding from a plastic bottle) with an external ignition source would increase the blast? Or maybe just add another factor to it? I'm sure somebody knows. Every once in a while, though I've been out of the military for about 4 years now, I still find it surfacing from my friends. Just curious.

Posted by ghostguard7 10 years ago



Photos from this year's NRW 2012 Robot Block Party!

Everyone had a robo-tastic time at the Robot Block Party for National Robotics Week at the Autodesk Gallery! On Monday, April 9, the Instructables crew invited the community to check out robot demos, workshops, and enjoy home-made liquid nitrogen ice cream! Here are some images of the party - Thanks to everyone who joined us, what a blast!

Posted by audreyobscura 6 years ago


Would a reversed tuyere system work? Answered

I was just lying in bed thinking of ways to update my forge and boom it hit me.Instead of having an airblast directed upwards with an ash pit at the bottom of the blast upwards,would it not make more sense to have the blower aiming down at the ground so that ash is sucked out of the forge. The vaccum created in turn would move air from above the forge into it and throwing ashes out the bottom.Would this not work?

Asked by trf 9 years ago


Can someone recommend some Wii games for my two-year-old? Answered

We just bought a Wii (thanks to the $50 price drop) and are having a blast, as expected! I'm wondering if there are any games out there suitable for a two-year-old so she can play, too. Nothing complicated of course, just something where she can wave the wiimote around and have something interesting happen onscreen.

Asked by jeff-o 8 years ago


The Rocket Office Chair for Your Emergency Getaways

If you think that you might need the option to blast through the roof to safety, this chair can do it for you. With enough thrust to keep you up in the air for 45 seconds you'll have plenty of time to escape and plan for what you're going to do when you come back down again without a parachute. Linkvia Boing Boing Gadgets

Posted by fungus amungus 10 years ago