has anyone seen a LEGO canister like this one?

I don't know much about it i have tried to find out it its my moms  and i wanted to  fix up but before i do  aim not to sure what it looked like to begin with thank y'all  for any help  hear is some better pics  and its not wood its  ceramic i think thanks 

Asked by ggardner7 6 years ago


hexagonal box design?

Looking for tips for efficient design of wooden hexagonal boxes, bottoms, and lids.  Jewelry boxes, canisters, etc.  How to clamp for glue or air brads - I'm thinking a hexagonal jig, but that's potentially a lot of jigs for different-size boxes.

Asked by rjvoyerjr 7 years ago


How to make a cool-looking DIY canister filter for a 10 gal guppy tank with a college student budget?

Hi everybodyi'm a newbie for diy project but i would love to give it a try. ok, so my hang on the back filter for my 10 gal tank just stopped working. i started to google for a diy filter and found a cool site to make a diy canister filter. here is the link: http://www.petfrd.com/forum/articles.php?action=viewarticle&artid=87&page=2however i just wonder if anyone had tried it. if you did please respond back to me with a detailed step-by-step instructions on how to assembly one. in addition, please tell me where i can get the materials for the lowest cost. i guess in this economy a college student like me just can't afford to spend too much. btw i'm in san diego ca if that helps... thanks a lot for reading my questions.best,tino

Asked by tinosquare 9 years ago


Hey i have been looking around instructables and internet for a cool idea to use small empty gas cylinder. Answered

Does somebody know anything cool to do with them See the link for a picture.http://www.tooled-up.com/ProdImage/GAZC206BP.jpgthanks

Asked by sallost 9 years ago


Would it be possible and/or probable to achieve combustion by adding a small amount of water to a specified powder mixture?

I've been looking at instructables for the past few months but only recently joined.something that really interested was an instructable about creating fire from a drop of water https://www.instructables.com/id/How-to-Start-Fire-with-Water/ and i thought that that was so cool. But, some of the comments suggested that one of the substances used, NH4, or Ammonium Nitrate, was now illegal. Is there possibly a better way of having that same type of powder that when it comes in contact with water, it will light on fire? If so, please tell me or give me a link to something else that will tell me how to do so (I don't even know if that actually was ammonium nitrate, but that is what the creator said.).

Posted by The Musicman 9 years ago


Wanted: Looking for EMPTY Nitrous Oxide Canisters

Looking for EMPTY, only empty, Nitrous Oxide canisters.. the small kind, for like airguns or whipped cream.

Posted by laminterious 10 years ago


PVC Pressure Canister

I want to build PVC Pressure Canisters what diameter pipe should I use? Naysayer's welcome to comment I would love to here the crazy and logical reasons this would not work Pfarmkid

Posted by Pfarmkid 5 years ago


film canister rocket?

i was thinking i could make a pvc pipe launcher that could fire those film canister vinegar and baking soda. you could put them in the barrel with the cap facing you and the body would fly out of the launcher. if you think this is a good instructable im happy to make it.

Asked by roketfueldgoat 8 years ago


Film Canister LED Flashlight on Howcast

Not long ago I got an email from Howcast telling me that they want to make a video of my Film Canister LED Flashlight... That was about more than 2 months ago...I search Howcast every day looking for the video but it didn't appear... I found only these instructions on how to make the flashlight... No Video !?!?! http://www.howcast.com/guides/2701-How-To-Make-a-Film-Canister-LED-FlashlightWell, check it out, please leave a comment there and here, tell me what you think about it...Thanks! Stanislav

Posted by comodore 9 years ago


Film Canister LED Flashlight Kit

I am selling my Film Canister LED Flashlight Kit. The Kit Includes: #Film Canister #5 ultra-bright white LEDs #Push switch #3V battery #wire #solder +instructions on building the flash light You will need: #soldering iron #electrical tape #wire cutter Cost: The cost of each kit will be $12, whit out the cost of shipping! When you tell me your location I will calculate the cost of shipping. Payment: I DON'T have PayPal so you just send the money to my address. When I receive the money I will send you the kit! What to include in PM: # Name # Amount of kits you wish to purchase # Email address (legitimate email address please) Once I receive your PM, I will send out the request to your email, and then you can purchase the kit. Once I receive the payment, I will ship the kit. If you have any questions, feel free to send me a private message. Thanks!!!

Posted by comodore 10 years ago


DIY airsoft grenade that isn't a wad of bb's duct taped to a firecracker?

 Okay, so here's what I'm thinking; an aluminum rod with holes in the sides for the bb's, the holes are a little larger than the bb's, and have a styrofoam chunk in each of them to hold the bb's in. Then a hole the size of the CO2 canister in the middle. I haven't worked out the timing mechanism yet, or even started to, but the firing mechanism would be a spring attached to a hammer with a spike on the end of it, pull the pin, hammer hits the co2 canister, boom. Any help/suggestions here?

Asked by iBurn 8 years ago


i am making a co2 powered potato gun and it will be running off of a 20 oz canister. how would i connect it to the gun?

If you are aware of how co2 canisters connect to the guns (they screw on) then what parts would i need to make that possible to make the connection to the gun?

Asked by jadams5 6 years ago



clay or wooden compressed air canister

Had the idea but don't know if it will work don't know if clay would hold the pressure it would be used to hold compressed air for mechanical uses to power primitive machines also if it would work what do you think the psi rating would be if not wood or clay what other primitive material do you think i could use

Posted by Pokemon03 2 years ago



Need way to fill small air canisters (4-8oz) w/ bike pump

I've got a couple of older small CO2 canisters that I haven't used in a few years. I figured a good way to reuse them was to make a refillable canned air. The only problem is I don't have an air compressor. What I do have is a bike pump. Does anyone have any good ideas on how to (1) get air into the cylinder with the pump and (2) make some sort of release system, trigger or otherwise, to release it like canned air. I'm looking to use it to blow out electronics and the like. Yes I know about the moisture issue but not terribly concerned with it.

Posted by MrBippers 11 years ago


whats the best size container to compress air into? Answered

Thanks for the advice on my earlier question guys but now I'm wondering what the best size to make my tank. Just so everyone knows I'm trying to improve a pneumatic  air soft gun I made a while back. I just want to know if a really small canister, like one with an aria of 12 square inches for instance, could launch my air soft bb just as fast as a 100 sq inch canister if they both had the same amount of pressure inside. If not then whats the best canister size in between the two to launch my air soft bb. Thanks for the help : )

Asked by inconceivable1 1 year ago


Convert an old canister vac to a harness/backpack vac?

Greetings Instructables Brethren! I've been getting along with all hardwood and no vacuum cleaner for 7 years now, and now with kids, I am admitting defeat, but still can't take that dreaded step into the spiral of ever-shortening planned obsolescence cycles for ever-more-expensive and flimsy junk. I'm looking for a way to turn an old Electrolux or other simple, repairable, and reliable antique canister vac, into a backpack vac. I wanted to do this Instructable myself, but between the 3 kids and being only armed with a dustmop and broom, I haven't got the time to do all the project development! Can someone out there with a few tools and a Monster Hacker / steampunk mentality, convert an old canister vac to a trusty Ghostbuster-style Backpack Duster? It will need a superlong cord, though most of those oldies-but-goodies did come with that.  And if you do this successfully, and can see fit to sell it on the Instructables Store, you probably have your first customer, right here!

Posted by megmaine 6 years ago


HFC M190 Dual-Gas Airsoft Pistol

I am selling my HFC M190 airsoft pistol.I was into airsoft for a little when I was younger, but have since outgrown it and am selling my gun.It has only been used about 8 times.Works perfectly, as I value my possessions. The gun can be rendered inoperable by removing the slide.The gun also can be taken completely apart.Its all metal, exact weight, and size as the gun its based off: Beretta 92The gun is semi-auto, and full auto variability.It uses green gas, (propane), but also can use CO2 canisters with the appropriate magazine.Included is:The gun (duh)One magazineExtra handle grips (wood)Auto-loaderTwo canisters of brand new Green GasOne canister of lubrication oil.ManualCarrying case$85 for everything PM me please.

Posted by bumpus 9 years ago


CO2 canister discharge for arm mounted gun? Answered

I'm looking to modify a simple airsoft gun for the purposes of making the needed weapon props for a assassins creed costume a friend of mine is working on. With that said, the arm cannon/crossbow thing (sorry, I sadly never played the game!) is one I'm playing with now, and I got to thinking about taking a simple CO2 powered airsoft gun, and modding the barrel to take softer projectiles, and to be mounted to someones wrist. The question being: would the discharge from a CO2 cartridge harm someones hand? There will be leather between gun and wrist, by the way.

Asked by DoctorWoo 5 years ago



wiring led turn signals to flasher and fuse box?

Led signal lights turned on with regular car flasher relay canister and now with the led flasher relay i get nothing at all!!!!

Asked by kyriedanielle 8 years ago


Fitting a hydrogen/oxygen reactor into a thermos? Or at least in a container about the size of a birdbath stand? Answered

EDIT: I decided that starting with steam instead of hydrogen would be much more efficient, much safer, simpler, and cheaper than reacting hydrogen. So if anyone knows if there is a way I can compress steam in a canister and not have it turn to water, and where to get the supplies for relatively cheap, that would be great! Merci! So my last question was how to bond hydrogen and oxygen to make water and condense it, and I got how to do that, but how hard would it be to fit this whole thing into a homemade thermos that has a screw-on hydrogen canister on the bottom? The hydrogen storage would be outside of the thermos in the canister, but there's still the reactor, condenser, and pressure release valve for safety. How hard would it be to fit it into the thermos (the thermos is about 1.5-2x the height of a store-bought thermos and about the same width, maybe a little bit wider)? If that isn't possible or logical, how about a birdbath stand? It would be a wide PVC tube reminiscent of a stone birdbath support, and would have a basin on top that contains the water after exiting the condenser. 

Asked by ALogan97 6 years ago


Dyson vacuum parts

Our Dyson vacuum finally broke after 10 yrs but the motor still works well. I've been thinking of using the motor and canister as the base for a shop vac. Has anyone had any experience working with Dyson parts? Any suggestions would be great. Thanks.

Posted by sage729 1 year ago


how do you build a grenade launcer?

It looks like a short sholder mounted rocket launcher only it takes the big co2 canisters, fires those nerf footballs that have tails, and loads from the top by cocking the front barrel forward and loading the round into the barrel before snapping it back. It was in a video on youtube.

Asked by erod8895 8 years ago


What can I do with Aluminium Chloride? Answered

 I recently made some Aluminium Chloride by electrolysis and evaporated the water off and powdered the crystals. I have about half a 35mm film canister full *That's a standard unit of measurement you know :-)* Just wondering what I can do with it. (Maybe try and get the Aluminium back?).

Asked by DELETED_zoltzerino 8 years ago


waterproof nontoxic adhesive?

I'm looking for an adhesive that will bond plastic to plastic, is waterproof, and is also non-toxic. I am attending an "anything but cups" party and am planning to use a Magic 8 Ball. I know that there is a canister inside which holds the die and blue liquid. I believe in order to take that out, I need to open the entire ball. I don't think that it will snap back together in a way that won't leak. Any suggestions would be appreciated!

Asked by sk8rgrrl 8 years ago


How do I make a HERF gun from a magnetron?

So I saw this post here and I too am feeling creative and wanting to make a portable HERF gun powerful enough to make a ripe piece of fruit explode within less than 1 second. So here's some ideas about how this thing works: 1. The device would use a an appropriately sized vacuum magnetron with an electromagnet The current fed to the magnetron's electromagnet would be a rectified sine wave at the resonant frequency(oscillating current flowing in but not out of the electromagnets coils). The purpose of this technique is to use resonance to turn the magnetron into an amplifier as well as an oscillator so it functions as a maser of sorts(not sure if this has ever been done before). 2. This thing is going to need a lot of power, and I have a solution: pneumatic electricty. The electricity would be produced by means of a high speed electric motor with permanent magnets(which can act as a generator)that is capable of spining several hundred RPM without frying itself. This genemotor would be driven by a turbine spun by by outflow from a cylinder containing compressed air. When the trigger is pulled, the cylinder valve opens and the air is released into a small turbine chamber and then expelled out an exhaust tube extending out the back of the gun. My 1st choice of material for the gas canister is titanium since it has to be both compact and capable of storing compressed air at up to 1000psi(or above). But the big unknowns are a)how much power will be needed to suplly the magnetron and the RF oscillator/rectifier, b) how fast the generator will need to rotate to produce that power ,c) how much pressure is necessary in the compressed air canister, and d)what material I will need the canister to be made of. Any suggestions? Thoughts? Comments?

Asked by YugZ0h0th 4 years ago


How could I calculate the best lengths for a barrel of an air powered shotgun?

Hey there community, i have asked a couple questions here before and i appreciate your answers so very much. this is why i have come to you today again to ask anotger. first off, sorry fir my grammar and spelling errors  im on my phone. now on to my question... i am building an air powered shotgun because i love bb guns and pellet rifles. however, there is no pellet shotgun really out there on the market that is of good quality. so, i want to make my own. . i am following kip kays law rocjet paintball launcher design, but i want to put a barrel that has many .180 in. diameter tubes within it to contain the BBs. the thing that is going to powere it is a  12g co2 canister that is hooked into a paintball quick change cylinder. I know tyat i must do math in order to get the right chamber to barrel ratio. i want the enrrgy within the canister ti be put to use as efficiently as possible, that is so that i am not wasting energy and that i have enough energy. so, any help would be appreciated. thanks again

Asked by XBLmonster 5 years ago


machine gun

Ok i have this book its the Military small arms encyclopedia for 1900-2000 of military small arm guns. In this book i was looking at the machine gun section and looked at one its a Skoda M1909 belt fed machine gun mounted on a tripod, and has a frontal shield protecting the operator. Im working on a design for it right now, although i am quite short of pieces because i need to make the cooling canister and the body, then the tripod. Then ill need a shitload of pieces for the belt

Posted by ClemensY290 9 years ago



World's Smallest Shockers For Sale

Well, not really, but I am going to make and sale tiny shockers on ebay soon, I just need a few questions before I start making, and selling them.Do you wanted the shocker naked (Like in the picture below) and make your own container for them?Do you want the shocker to be packed up in a film canister or box container with a battery holder and a switch?And the most important of all - How much are you willing to pay for them? I need an answer to that!And here is the link to make the shockers.. Build a World's Smallest Electronic Shocker!

Posted by Plasmana 9 years ago


need to know voltage for blue/red flashing leds what size resistors I need do I need capacitaor 9v battery

I'm making a red/blue flashing led bike light with a 9v batt what resisitors I need there are eight lights installed in a circle canister Plastic. The lights already flash when connected to a battery, what is the voltage for those kind of 2 ccolored leds. Thanks a LOT GUYS KEEP UP THE GREAT WORK i'M A BIG FAN FOR 1 YEAR NOW YOUR SITE HAS KEPT ME SANE pAUL

Asked by Zhenghui 8 years ago


Recycling from A to Z

I love to do what I can to help the environment, and I love helping others reduce their impact. I found an A to Z guide to recycling on the Real Simple website.Recycling made easyFrom aerosol cans to zippered plastic bags. I definitely recommend you read this.Aerosol cans. These can usually be recycled with other cans, as long as you pull off the plastic cap and empty the canister completely. .........Zippered plastic bags. Venues that recycle plastic bags will also accept these items, as long as they are clean, dry, and the zip part has been snipped off (it is a different type of plastic). photo from Realsimple.com

Posted by Brennn10 9 years ago


remote control car (fisher tech nik)

I finally worked out most of the bugs in the car, and it works! the entire car is made out of Fishertechnik (though 1 of the pieces is modified). the back is pretty basic, just a motor with a gear that meshes with the one on the back axle. that ends up moving the car. the front is cool, instead of having the motor spin the front axle to turn, i hooked up the front to turn like a real car. the motor turns the steering wheel. that pushes a connector to the right or left(depending on which way you want to turn) and that turns the front wheels making the car turn. i also mounted a air cannon on it. that uses the on modified piece. you see, i used a film canister type thing with one end plugged up to make the cannon hook up. i then put two air connector things( i forget the name) into the back piece. i hooked pipes up it it from a pump. a spiecal valve lets air only go in not out, making air pressure in side of the cannon part. that eventually shoots the cap off. it goes about 10 feet. unfortanitlly the cannon is manually activated because the canister slowly leaks air from it. i used to have it hooked up to a motor but it did not give big enough pumps so the cannon would not fire. so does anyone want instructions? i know, kitemans law but it will take me for ever to make instuctions so i want to know if anyone will actually build it.

Posted by dsman195276 9 years ago


What to use for a small crucible?

I want to make a small backyard aluminium foundry, but I don't know what to use as a crucible. I've seen soup cans, but it says they rust away, and ceramic shatters. I've also seen things like the bottom half of a propane/co2 canister, but I don't have thing like angle grinders to cut it open.  Also, how would I make the foundry? I was thinking of laying down fire bricks in a pattern like this: (from top, looking down) []==== []  O []===O ====[] with mud to fill in the cracks. Would this work? Thanks, josh1324 PS. The two []'s and four ='s are just one brick.

Asked by josh1324 6 years ago


Advice for a hand crank ice cream maker please? Answered

I'm thinking of making a hand crank ice cream maker using an old hand drill I had and mounting that on a plastic bucket that'll be my ice bucket, then using some copper pipe I have lying around and soldering a dasher with some oak scrapers for the side. The main hurdle I'm hitting is where to find a canister for the actual ice cream. I'm wondering if I could safely use galvanized ducting, I'm planning to make sherbet on this as well, so will the acids react with it at all or is there some other hazard I should know about using ducting for this?

Asked by sugarworm 6 years ago


Homemade digital camera telescope adapter

After calling my last diy project a success I decided to give another one a shot and am attempting to make an adapter for my easyshare c813 but all I ever see through the cam viewer is just blackness. I was hoping maybe someone here would have had some experience with this and could maybe point me in the right direction. My adapter so far consists of a couple layers of a pringles can wrapped and tapped with electrical tape inside and out. Ive seen similar contraptions made out of film canisters that work just fine even on webcams but Im having no such luck myself.

Posted by kithso 9 years ago


How to build an inflatable "brain" costume for stage - seeking ideas?

Hi all, a friend of mine asked me to help him design and build a costume for a stage show he's doing; he will be wearing a monster mask and needs an inflatable "brain" to suddenly inflate (note, he changes costumes every 5-10 minutes during the show so it's something that needs to be fairly portable and easy to change into). We tried using CO2 canisters with balloons, a good effect but not nearly big enough. I'm thinking about some kind of air pig with a valve that he can clip a connecting hose to. If anyone has done anything like this or has a good recommendation I'd love to hear! Many thanks, DAZU

Asked by damianzuch 5 years ago


CO2 88 gram modification

Ok my fellow creators I am asking for your help. CO2 project is making  portable air tools without lugging around air compressor. Have pipe work and connections already done and modified the CO2 adapter to puncture canister when screwed in to release air. The problem I am having is once I attach an air tool it work fine, but after I release trigger air keeps flowing through because of to much pressure. If I read correctly its about 100 psi. Thought about direct connect from tool to air but I would like to be able to switch out tools. Have air tool change connectors at end right now. I do have high pressure shut off valve. Its just trying to regulate air flow with amount of pressure this thing releases. To be honest eventualy may be weaponized. Thanx in advance for your input. 

Posted by mkirbysplace 4 years ago


The Dangers of Disney

I was trying to find out who was currently leading the US presidential polls, when I got distracted by an item on Freedom of Information. That led me to this article. Isn't the internet wonderful?Inhaling helium to produce an amusing squeaky voice (a favourite game for children in the United States and Europe) may not be the innocuous party trick it seems, according to emergency medicine physicians at the Wesley Center for Hyperbaric Medicine in Brisbane, Australia (Annals of Emergency Medicine 2000;35:300-3).Simon Mitchell and colleagues report the case of a previously healthy 27 year old man who inhaled helium and subsequently developed a stroke with transient blindness and radio-graphic evidence of cortical infarction. However, the man had inhaled the gas direct from a pressurised canister, whereas most children who perform the trick - to imitate the voice of Mickey Mouse - inhale the gas from helium filled balloons.The patient developed rigidity and lost consciousness within moments of inhaling the helium. On arrival at the emergency room 15 minutes later, he regained consciousness but was found to have complete visual loss and evidence of cortical infarction.PubMed ArticleI still haven't found out who's leading, though...

Posted by Kiteman 9 years ago


Lamps from recycled parts, ideal example of a green theme.

Personally, i think this lamps look very cool, both items are made from various pieces of old electrical hardware.I love how the design is rather simple, but complicated by the parts used.Made by the Flickr user Qvidja50.He saysThe lamp on the left is fabricated from a railroad signal switching relay manufactured by the General Railway Signal Company in 1924. The perforated cylinders were originally ink canisters designed for high-speed fabric printing. The light on the right is made from a water-cooled dual processor from an Apple G5 desktop computer. Other elements include an hour meter, aircraft compass and 40W LED bulbs.Check out the full Flickr set.Personally, i like the 'hanging bulb' one. Firstly as i love the way the bulbs hang down, that and the use of a Powermac G5 heatsink is a win for an apple user fanboy like myself.For anyone looking to enter the Epilog laser cutter contest. Whom may have some parts laying around, this is a good place to start your research.I have an old iMac stand that caitlinsdad said would make a good lamp.- gmjhowe

Posted by gmjhowe 9 years ago


Hydrogen torch - anyone made or used one? Answered

I am working on my own "hydrogen batteries" to create a lot of hydrogen when I need it as a replacement for those propane/butane canisters when camping or fishing. Got some simple prototypes working for the gas creation but do struggle a bit with converting some orifices (is that eve a word?) and a torch to work with hydrogen. Not to mention the pressure regulation LOL Biggest problem so far seems to be the flame temperature. The gas is produce at up to 50°C and my current burners all start to glow red hot after just a short amount of time. Where they struggle to braze copper with propane the hydrogen is almost overkill ROFL Must be really close to these yellow acetylen bottles the plumber use. So big questions: Do I really need a different orifice hole and if so bigger or smaller than used for propane/butane? Do I really need a acetylene rated torch or can I just ignore the orange red color of mine when using hydrogen? I don't think it will melt but after a while the heat travels down into the handpiece too...

Asked by Downunder35m 1 year ago


Building a Foundry?

So I've been experimenting with building a mini foundry made out of steel cans. I've experimented with several different fuels, fuel injection systems, oxygen injection systems, crucibles, and different metals. However, the only metal I've ever been able to melt with it is zinc. (if you don't know, zinc doesn't take alot to melt; only about 700F) My target metals are aluminum and copper, but despite over a year of experimenting, I've never been able to melt either. I would like to know what I'm doing wrong, or what I could do better. Here's the rundown of the furnace's construction: The fuel I'm currently using is propane. The foundry isn't big, (you could fit it in a backpack) so I just use propane canisters for torches with a normal output line on the end. The line runs to a small piece of glass laboratory tubing with a tiny nozzle on the end which is about 1 mm in diameter. The propane shoots out as a stream and mixes with air utilizing the venturi effect. The propane mix then shoots into a large metal pipe about 2 cm in diameter. It then bends up at a 90 degree angle and enters the furnace, which is in essence, a steel can with a hole in the bottom. inside this is a steel can cut in half with a thick wire through it to suspend it above the burner.  So what could be improved? When I run it at full blast, the whole furnace glows orange, but no metal melting happens...

Asked by tylervitale 6 years ago


How would one create a mechanism to increase humidity in an aquarium for a reptile?

I have a large (55gal) tank with a tortoise & a large water bowl for the creature.  The substrate is soil which is kept very moist but yet the humidity in the cage is not as high as I need it to be.  I was looking at buying a contraption to help with this problem & read a review of one product.  The person who wrote the review seems to think this same product can be made with simple, every day items, however, the description regarding how to do this is not so enlightening for me.  I will post this below & am interested in someone 'filling in the blanks' so to speak & elaborating AND/OR presenting new ideas/contraptions.  Thank you!!!!!   This humid air exchanger is a simple design that consists of a plastic canister, a sponge that hangs vertically from the lid, a nipple on the underside of the lid, and two nipples on top of the lid to connect the air hoses (one connects to the air pump and the other obviously would be the humid air output). Had I done some research into the design beforehand, I would have just made one of these myself out of a two liter bottle, old plastic peanut butter jar, etc... A person who has the requisite knowledge and common sense needed to properly take care of a reptile has all of the ability needed to construct one of these according to one's own ingenium. In about 15 minutes or less you could make your own device and save yourself $12 plus shipping in the meantime. Might even be a quick and fun little project to involve the kids with. In the end, yes, this an effective device which could easily be built out of readily available household items.

Asked by kbaleigh 6 years ago


where can i get a spray can-like spray nozzle made from metal?

Hi, im currently doing a project which uses a high volume, low pressure water motor and needs to spray a mist, using little pressure. Essentially what im after is something with the same specs as a regular aerosol can spray nozzle, except it needs to be straight, and made of metal, so it wont dissolve in the petroleum oil, or slip . ive tried using a normal spray nozzle but the pressure is too great and no matter how i go about binding the tube to the nozzle it always pops out, either because it grows soft and warps from the petroleum oil in the spray mix, or from the overal lubricating effects. either way, using spray can spray nozzles is bad. For another project ill be doing at the same time, which is for watering my plants, i still also need a straight spray head, prefferbly made of metal, as this one will have a bit more pressure behind it, and i need to be able to absolutely permanently attach the nozzle to a pvc plastic hose. I dont want to vary at all from my design, or compromise with a plastic version. What im after is a straight spray nozzle, aka, not bent, that sprays a mist of roughly more or less the same size and directionality, and angle as a earosol spray canister. for all intents and purposes, my water motor will be putting out perhaps 2/3rds of the pressure of your typical spray can, a normal spray nozzle works fine, so all im after is a metal equivalent, or anything that wont dissolve in petroleum oils, acetone or paint laquer. does anyone know where i can find such a thing? thanks

Asked by oldmanbeefjerky 5 years ago


Condom Band-Aid, Top-Down Blinds, Laser Light Show...

Sign-up for our newsletter here. Dec. 6, 2007 Welcome back! The holidays are almost upon us. To celebrate, Instructables and CRAFT Magazine are announcing the beginning of the Homemade Holidays Contest! Win a CRAFT boxed gift set, a robot holiday ornament, and other cool prizes. Check out these cool instructables! The World's Loudest Party Popper - The Most Portable Film Canister Cannon A powerful pocket-sized noisemaker you can make from re-used components.posted by Kiteman on Nov 14, 2007 How To Fool a Fingerprint Security System As Easy As ABC This instruction will show you how to fool most of the fingerprint security systems out there. posted by tycoyoken on Dec 3, 2007 Personal Wicked Laser Light Show Create your own personal laser light show with everyday objects. posted by FathomBoy91 on Dec 2, 2007 LCD Overhead Projector Get a free LCD from a dead laptop and turn it into your own video projector.posted by waterppk on Dec 1, 2007 Create Your Own Top-Down Blinds Create top-down blinds for a fraction of the cost of special order blinds!posted by jen_higginbotham on Dec 1, 2007 Win a laser cutter worth over $15,000! Building a climbing wall at the top of the stairs With a climbing wall in your home you'll be able to climb for 20-30 minutes every day with almost no setup time. posted by ewilhelm on Nov 30, 2007 How To Make A Ball Machine! Have you ever wondered about how to make enormous and Wondrous Ball Machines? Now you can design and build your own!posted by Trainman 2000 on Dec 2, 2007 Strong and Tough Platform Bed DIY Build a DIY platform bed that will last for years for $60-$90. posted by trz on Dec 3, 2007 Novel Use for a Condom! There's more than one way to use a condom to stay healthy.posted by LUCCHINA on Nov 22, 2007 How to make artArt-making is one of the easiest and most lucrative of human activities. Learn to make it in exchange for food, shelter, sex, fame and money.posted by randofo on Nov 28, 2007   Now go make something awesome, and I'll see you next week! - Eric

Posted by fungus amungus 10 years ago


UV filtration in your fish tank or small fish pond

Year after year the topic "I have a fish tank" seems to go more out of control. What was once a hobby just to have some fish can now be a design feature both in your home and inside the tank. Realistic looking lasdscapes, optical illusions that make you think the tank is much bigger and the list goes on. But one thing that now always pops up is the must have thing of UV filtration. Or to be precise: UV-C sterilisation! Now, if we trust Wiki and our big water suppliers then UV-C will literally kill anything alive that comes into contact with. So of course it would be a good thing to have for your tank - or not? UV-C is very dangerous for your eyesight and quite harmful for your skin! Looking into a proper UV-C lamp without protection means you can go blind! Even good sunglasses might not have enough protection in the UV-C range, so only use them for additional protection but never without and glass between you and the lamp! Don't be a fool! Treat UV-C seriously! You would not look into the full sun with your sunglasses and would not expose your eyes or skin to a powerful laser, UV-C is to be treated the same way! Let's start by using some boring text to explain the concept a little bit. On a large scale special and quite powerful systems are used to treat our drinking or pool water. Here special UV-C lights with a wavelenghts of 260nm or below are used to shine through the water passing by. There are two key factors here. a) the wavelenght b) the water flow rate and the corresponding time the water is in contact with the UV light To ensure all bacteria, viruses, algae and other harmful organics are dead the water must circulate for long enough so even the last water molecule had a few seconds of exposure. All this only works good with "crystal clear" water for obvious reasons as otherwise the UV has to be even more powerful to pass through. Single cell organisms literally crack into pieces similar to being exposed to gamma rays, more complex cells like algae have their cell membranes damages and the DNA suffers as well causing reproduction loss and early death. Even some chemicals break down, most importantly here chlorine based substances. Differences within the UV-C range! If you bothered to check Wiki about the topic of UV-C you will already know that only certain wavelengths within this spectrum will actuall be powerful enough to do what we want it to do. And here is the first problem for us hobby users. Most cheaply advertised "sterlisation lamps" you find in places like Ebay are actually totally useless. Stating to be selling a UV-C light to sterilze your water in such a case is still not considered to be fraud though. Simply because it still does what it supposed to do, just very slow and with very little effect. Only the so called "short wave" UV-C range is powerful enough! To avoid loosing business during the times of the biggest hype in 20 years no seller will actuall state the available wavelengths. That means without this info anywhere you can be certain the advertised lamp is of little to no use. Even those advertised to be short wave UV-C might not be the real deal. However, if a decent manufacturer is behind the actual lamp used it is possible to check the datasheet for these performance figures - but again most cheap systems come with no-name lamps inside. Check the prices for a reputable UV-C light with the same lamp fitting, e.g. G23 and you will see it might cost more than your entire system. Ok, you have a poper short wave UV-C lamp or consider getting a canister filter with one in it.... Never, ever test your lamp without proper protection!!!!! UV-C will damage your eye within seconds! If you system or lamp does not provide a viewing port or shine through area then you have to place a piece of glass between you and the light! UV-C won't be able to penetrate normal window glass but will pass through quartz glass. Place the lamp in a box and cover with the glass. How make proper use of UV-C sterilisation... The replacement lights are quite expensive, so let's see how to get the most out of them. As said before exposure is the key factor so the flow rate of the UV system must match tank size and flow rate of your filter system. Canister filters with a build in lamp should be designed to match but I will tell you later what to look for ;) Most of us will prefer to have a in-line system if there is already a good canister filter at work, so I will focus on those and rop in solutions. If you compare in-line system you might notice that some quite small and low power units claim to allow for the same flow rates as for example 40W units. Some are fraud and just want to sell while others use simple physics to make the claim true. A good system will utilise an auger like "ramp" that forces the water to circulate around the tube many times - causing up to ten times longer exposure rates. Others create this sprial effect more like a vortex with some diverters and modified inlets. The later seems to be less efficient though with low power lamps. An in-line system should be on the outlet side of your canister filter so the best quality water will pass through it. A drop in solution should be used alone and without the existing normal filter pump you might have in there. Ok, got it, but how do I actually use it now? Despite common thinking a UV-C system should not run 24/7 like your normal filter. You really only need it to solve problems you should not have in a healthy tank! It is not a magical solution to make your underlaying problems go away ;) Let's start with the most common reason someone buys a UV-C system: An algae or bacterial outbreak causing greenish or milky water. If that developed slowly over a period of weeks then you would be better off to do a good clean of the tank and filter plus a decent water exchange. A few drops of meds will do the rest. And if you constantly get algae growing on your glass, ornaments and plants then your nutrient levels and water quality is not right anyway and needs a good check. But of course there is also the problem of light - too much for too long and unwanted gree appears everywhere. If in doubt reduce the light power, shade out natural light or reduce the on time for your lights. Having said that we now face the problem of a sudden outbreak after introducing new fish or plants. If you don't have a quarantaine tank chances are that sooner or later you get unwanted or even harmful guest into your tank. Here the UV-C will be beneficial, which is why a canister filter with build in light should have a seperate switch or power supply for the light. After an outbreak or while introducing new life into your tank the UV-C will remove a lot of the things that we don't want to bring along. For new life I leave the light on non stop for a week, that is for a small 4ft tank with 200 liters. To control an outbreak it depends on how bad it is. I assume here you can still see the back of your tank  but that the water either appears greenish or slightly milky from bacteria. As a personal thing I prefer to to remove and clean my filter material before treating a severe outbreak. Once done I fill the filter with a mix of activate carbon material and fine filter wool. Reason for this quite simple: The outbreak causing stuff is already in your filter material and will be a constant source of re-infection. And since breaking down all this bad stuff causes even more bad stuff to be produced as biological waste we want to discard it properly once done. Using just fine filter wool and activated carbon also reduces the flow rate bit if compacted ;) Now we can turn on the light and pump and forget about it for a while. It is not recommended to run UV lights on a timer as you want them on all time to prevent short lifespan and have ongoing treatment of the water. Good idea to take a picture at the same of a day from now on to compare and check results. After 3 days the water should definately be clearer, if not then either your filter material is packed too losse or the lamp is no good. Once the water appears to be clear do a readin test - take a newspaper behind the tank and check if the text is clear - blurry means the water is still not clean. You will reach a point where the water quality will not further improve as much as in the days before. This is the time where you discard or clean out to dry your filter material and put the original stuff back in. The activated carbon should be discarded of course. You cleaned filter material will now need a certain time to grow enough good bacteria to go back to the old performance. During this time you should still leave the light on. In most cases with enough fish and plants in the tank a week should be sufficient. After that you can leave the light off and keep the tank fit and healthy. Special case: Algae everywhere! Especially after getting a new plant you can end up with quite pesty algae growth. Be it these long ghost hair types or in a bad case the black stuff growing on plants, ornaments and the glass. I have even seen tanks with algae covering the entire bottom of the tank causing the gravel to look like carpet. Here I can only advise to set up a quarantaine tank for your fish. Then remove all infested material for manual removal and cleaning. Infested plants should be cut clean and what can be boiled should be boiled in water for a few minutes. Now start scrubbing in the tank with ongoing water replacements. I prefer to let everything settle over night without any bubbler or pump running. This way I can suck up a lot of sediment the next day. If you can remove all plants and fish you can now use hydrogen peroxide and add it to your tank water. But this is only feasable for small desktop tanks. Before using the UV as above to cure an outbreak you should consider all water one last time. Allow at least 2 weeks with ongoing water checks before adding plants back in and another week before placing your fish back in the tank. The week before adding fish should be used to monitor the plats for any signs of algae you might have missed - if you find any remove it! A week after the fish is back in you can turn off the UV light. Underwater UV-C light!? In most online stores you will find quite cheap UV lights to be advertised as underwater or in tank use. Although it might sound tempting you should be well aware of the dangers of using them. The glass of your tank will block the harmfull UV rays but the water surface won't, so either don't ever look at it or use proper sunglasses with real UV protection. Apart from the dangers to you these lamps are not just cheap in price but also cheaply produced. That means there is no way of telling how much or how little UV-C is produced. If they are good then you still need to know in what type of tank setup you can use them. As plants can tolerate a bit of UV a placement as far away from the nearest plant should do, especially if you can place a bubble wall betwenn light and plants. The fish is another thing as some seem to be unaware of the danger in their tank. This means they can get too close to the light but I have not found any articles explaining how harmful UV-C is to fish or their eyesight. I guess once your fish starts to bounce into everything you know... ;) My advise is to stay away from the idea of hanging a UV-C lamp in your tank, the risk for you and your tank is just not justified. If you need to go cheap then get two or thre of these lamps so you have spares. But use them externally ;) Meaning: Take a UV proof plastic container of small size and place the light in there. To be really safe tape the lid and all holes for the hoses with black tape. Place the container above the water level of your tank and if you only have an internal filter pump push a suitable sized hose into the outlet to feed into you canister. Check how high you pump can make it and place the outlet or overflow slightly below this level. When to change the light? If you made it all the way down here then you might already had the benefit of using light to "cure" your tank. Now we are faced with the high replacement cost for the lamp itself. Ususally only flouroscent tubes are used. It is always good to check after purchase what type of lamp and manufacturer (if there is one) was used. In some cases the system itself is like an inkjet printer: Just a cheap way to make you buy the consumables. Let's say you new in-line filter was priced at $100 to have a nice round number, some are cheaper some much more expensive. The lamp used might be an exotic type and not even be available easy, so before you buy your system check where you can get spares, not just the lamp of course. A replacement lamp can be as ceap as 20 bucks or cost even more than your system if you need to order it elsewhere. The quartz glass sleeve can break too meaning you then need a lamp and cylinder. Going with a reputable brand and paying a bit more certainly helps to get spares in the future. Let's just assume you either got your system in bulk due to the price of replacement lamps or can get them at a reasonable price. UV-C lamps are not like your normal flouroscent light tubes you have around or maybe even on top of your tank. Consider them like the tubes used in the now unhealthy tanning beds. After a certain amount of time they no longer produce enough of the short wave UV light that we need. As you can't see it and most of us won't have the means to specifically measure it we have to trust manufacturers recommendations. For most good brands the numbers are the same: 8000 hours max. Considering the costs it does make sense to keep written track of the usage. Not too hard since we won't use them like normal lights but instead have them on for a week or more without turning them off. I recommend to have a replacement at hand long before you need it. A lamp can fail premature, crack or simply burn out. The 8000 hours are based on 24 hour usage, so one day on, one day off. This could mean for us the lifetime can be slightly longer but I would not go over 9000 hours. As a rule of thumb: If the water does not show good signs of getting clear on day thre the lamp is due.

Posted by Downunder35m 8 months ago


[newsletter] Best Shoe Knot, Tank Cake, Comfy Chair Recumbent...

Sign-up for our newsletter here. May 1, 2008 Welcome back! New contest! The days are longer and the weather is warmer so we're celebrating with Bike Month! Share your bike mods, upkeep tips, riding advice, and any other bike-themed Instructable to inspire others and win some cool prizes! The Cake Contest is over and the winners have been announced. See who won here! Check out these cool Instructables! Moving Tank Birthday Cake Not only is it really a tasty cake, but the turret rotates and the barrel moves up and down. Get ready for cake warfare! posted by dave spencer on Apr 25, 2008 How to Start A Flash Mob Do you and a few hundred friends have some time on your hands? Then follow these simple guidelines for creating a Flash Mob and have some fun! posted by w1n5t0n on Apr 28, 2008 Add a third LCD to your portable screen DVD player Need more LCD screens to entertain the family on road trips? Then hook up new AV outs to your DVD player and you're good to go. posted by okieinAZ on Apr 28, 2008 Make Your Own Biodiesel Processor Get a source of waste vegetable oil and put together this biodiesel processor and you'll be able to skip the regular pump. posted by drinkmorecoffee on Apr 26, 2008 How to make a Moleskine Notebook Want a Moleskine, but don't feel like paying the high price? Follow these simple instructions and you'll be turning out custom sketch pads in no time. posted by laminterious on Apr 24, 2008 Tesla turbine from old hard drives and minimal tools Those old hard drives can't handle your music collection any more, but they're perfect for creating a Tesla turbine with the help of some simple tools! posted by gerrit_hoekstra on Apr 25, 2008 Show us your flowers! May is Bike Month! Green Science Fair! The Comfy Chair Recumbent Add a recumbent bike to your comfy chair and you'll be riding in style. Bike riding has never been so plush! posted by oxania on Apr 29, 2008 Animated GPS Batmobile Icon Holy satellite triangulation, Batman! A little scanning of the Batmobile and now it's on the virtual map! posted by aarrgghh on Apr 30, 2008 DY-NO-MITE!!! birthday cake There's only one way to defuse this bomb -- it must be eaten. Start with the licorice "wires" and move on to the cake dynamite sticks. posted by mmmicha on Apr 28, 2008 Film Canister LED Flashlight Get comfy with basic wiring and LEDs with this great beginner project, and build a sweet $4 flashlight. posted by comodore on Apr 21, 2008 World's Best Shoe Knot Get loopy with it and tie the world's best shoe knot. Disagree? Then leave a comment and share your favorite knot. posted by shoemaker on Apr 28, 2008 Now go make something awesome, and I'll see you next week! - Eric

Posted by fungus amungus 10 years ago


Mozzies and how to keep them outside....

Down here the winter was too short and not cold enough, meaning insect life is literally exploding in numbers already. The house I moved in has badly installed flyscreens on the doors and windows, most likely due to the fact that the house is moving up and down in several points... Anyway, due to the gaps everywhere I found myself with the problem that the mozzies covered my entire front and back door areas. With an unsupporting landlord not even allowing me to replace the bad flysreens with proper ones at my cost I was left with less invasive options to tackle the problem. Before you ask: No I am not even allowed to fix holes in the flyscreens covering the windows :( My next step was to check the local garden center for some natural solutions. Lemon grass seems to do the trick for the inside, the smell also keeps flies away really good. But I had to put the pots in the garden as the ongoing smell gives me headaches. It also did very little to prevent the mozzies from coming inside when I opened any outside door for a few moments. Only way out was to get rid of the mozzie population having daily meeting around my doors. At the local hardware store I found several "surface sprays" and they all stated to be very effective against cockroaches, spiders and other crawling insects - too bad I don't have a problem with them LOL After asking I was informed that those sprays do little to nothing for flying insects, including mozzies and that I would waste my money. During my next shopping trip I got desperate and grabbed a can of surface spray from Aldi. Was under 3 bucks, so I had nothing to loose compared to the 40-80 bucks for a canister of "the good stuff" from the hardware store. At the checkout an old lady asked if I moved into a new house with cockroaches when she saw the spray and I said that I only have a problem with mozzies. She recommended to eat more bananas ROFL Back home it was already too sunny at the front door for the mozzies to show up so I waited till the late afternoon and sure enough I found the area covered with them again. The spray annoyed them badly but I kept spraying all cracks, surfaces and also the gaps at the roof line. Kept checking for a while but could not see any real effect on the mozzies other than swarming around me and trying to suck my blood. Next morning I found the floor at the door covered by a carpet of dead mozzies! I don't mean a few, I am talking enough to take the brrom to clear them up :) Now for the past 5 days the body count is going down quite fast while my door stays free of mozzies. Still have them flying around in "normal" numbers but I can get in and out without a swarm of them following me. Since the product is plant based and considered to be without any side effects on humans or pets I will see how long it lasts and then just spray again - this three dollar can should last throughout the summer... You might wonder why I go through all these troubles... Long story short, I am quite allergic to the bites. Happened as a kid when during a warm summer night at a friends place I got so many bites that the doc gave up counting. He reached over 200 just by counting my head and face to the shoulders... Now I am allergic to the bites, the itch lasts over a week and thebite area swells up to the size of a 50 cent coin with blisters forming after 2 days. You might not get it hat bad but if you do suffer from the bites I found two remedies that help with the itch and reaction: a)  BBQ igniter (the manual push type without batteries)! They work like the expensive clickers you get at the pharmacy but last much longer - plus they require more force. The rounded tip is placed directly onto the bite and when you push the button in to "get shocked" two things happen. First the pressure forces the soliver that causes the reaction into deeper skin layers where there are less receptors for the itch. Secondly the high voltage breaks down certain parts of the soliver making it far less effective to cause harm. Downside is that you might like the shock in certain areas and that you should shock at least 10 to 15 times to get a real benefit from it. b)  Hydrogen Peroxide (3%) You put a drop of H2O2 directly onto the bite or for difficult areas use a soaked cotton bud. Rubbing it in with a cotton bud for a minute or two works best IMHO. You might see your skin turn white or feel a slight burn right where the bite is - that is normal and harmless. The hydrogen peroxide releases oxygen into the skin - this turns the skin white for short period of time. But the oxygen also breaks down the soliver and the byproducts of the body reaction to it. Works great for horse fly bites too. Downside here is that you should not overdo things and that you should test first how sensitive you are to the reaction. A good test is to apply it onto a small cut or scratch to clean it. If you tolerate that then won't even feel it on a mozzie bite. I hope some of this will help you through the summer ;)

Posted by Downunder35m 1 year ago