Just a small bug, on my profile page it says 46% of my ibles are featured...... im not a mathematician, but dont think 6 out of 12 is 46%.
Posted by knutknackebröd 3 years ago | last reply 3 years ago
I am looking to buy or build a small voltage regulator that can fit in an O gauge electric train engine. It needs to have a 18-20 volt AC input and 10-12 Volt AC 1 amp output. I would like to buy one already built, buy a schematic or a schematic with the parts to build. Thank You
Posted by frankv6 3 years ago | last reply 3 years ago
I'm trying to make a simple LED circuit with switch included in the circuit. Can someone suggest to me a 12V battery that is big enough to keep a 48 LED bulb system on for at least 24 running hours, but small enough to be the size of two fingers sticky taped together. Thanks guys, Nick
Posted by kritas 9 years ago | last reply 9 years ago
A small display bug:The fonts for "user name" and "inbox" in the upper-right hand corner of the top banner display inconsistently. Normally they are bold, but when viewing an instructable, they loose the bold attribute.They remain reversed (white), on the orange BG. The links still work fine.Firefox 188.8.131.52edit: "logout" and "Help" links also show the same behavior....(although they are not reversed.)
Posted by gmoon 10 years ago | last reply 10 years ago
Would you like to check this project out? http://redcircuits.com/Page124.htm it needs a small transformer with 230v input, 12v output 100 to 150 mA. How much turn main and secondary do i need? it said that i have to reverse connected the transformer. Sorry for asking, i'm not an electrical engineering student Regards Prasetyo
Asked by pmuhammad dwi 4 years ago | last reply 4 years ago
I've seen some forum topics here that explain how to create your own plastic molds etc. I'm looking for some help here. I need to make some small plastic gears, but I'm not sure that investing the time and effort into learning injection molding, simply to produce a hand full of parts, is sound logic. Is there anyone out there that makes small plastic parts for a living? I've contacted several companies in my area, but they won't do anything less than 10K quantity... Thanks, Tim
Posted by timcason 10 years ago | last reply 9 years ago
On HVAC evap fan motor at 120 Vac no load motor overheat then feedback pulse stop working 5178 pulses / min divided by 4 = 1294.5 rpm shall turn at 1350 + - 20 rpm what make the motor to overheat ? the unit had a power surge when lightning can it be saved ?
Asked by jma123 7 years ago | last reply 7 years ago
I got a asmall plasma cutter 110volt. is it possible to make it cut thicker material?? or do i have to use bigger transformers and stuff?? i dont no much about the plasma cutters. was also wondering if i could some how hook it to a lincon 225 stick welder? thanks for any help
Asked by monster30 9 years ago | last reply 8 years ago
Hi there I feel ashamed to ask this question as it is probably so simple I have some small MES bulbs.. they have 6/8V 0.15A stamped on them I want to run them off a battery... on a parallel circuit... would 4x 1.5V batteries (6V total eg 4 AA batteries) in a battery holder work for them?? and would I need a resistor to stop them blowing?? (I am trying to run 3 bulbs in parallel for an instructable... best reply gets put in the credits at the end, but you don't get royalties lol!) any help welcome Will
Posted by IllegalFun 8 years ago | last reply 8 years ago
Hey, so I came across these pictures of this gun I made a while ago that was a modified version of my "Newest Gun". This one isn't to different except its has a sliding trigger that is a lot more strong than the previous one. I basically made this to get rid of the trigger mech on the top which I think is pretty ugly, anyways hope you enjoy!
Posted by didexo 5 years ago | last reply 5 years ago
In the first picture, you can see that sometimes I don't get all of the forum topics. Any ideas why? In the second picture, you can see that on forum topics, and only forum topics, I can't see the box with the rating or who published it etc. (Although I can on other stuff) Any ideas on that are also appreciated. Also on a similar note, why is the button for sorting by rating gone?
Posted by shadowninja31 8 years ago | last reply 8 years ago
Just a few changes this time around. You'll notice the header - we made it a bit shorter to use less screen real estate, and less ... orange (personally I liked the orange but many found it distracting). The main thing is that we've opened up Guide writing to all Pro users. We're soft-starting this, it's not being announced anywhere but here as yet, so we can start out easy and see how it goes. Guides are awfully useful and we figure more should be better but it's also good to start small sometimes. Also we're starting a new ad campaign with Dremel and there's some special content we had to prepare for that. You'll see it very shortly!
Posted by rachel 8 years ago
Hiya all! I sometimes go to my grandmother's house, and there is an abandoned Karate club or something near it. Recently, I got bored so I went outside. I circled around that building a couple of times, and I noticed that I can climb to it's roof! It's not too high, about only 5 meters or so. The roof is awesome! It's flat, and then I came up with an awesome idea - how about building a small house there? Just for the fun of it, it could be an awesome place to come with friends. I need the floor to be at least 2x2 meters, height 1.5-2 meters. I need the house to be made of cheap and available materials. Got any ideas?
Asked by netbus 8 years ago | last reply 8 years ago
I've got an idea in my head, but there's one part that may unravel the whole thing so I thought there would be no better place to ask than here! I'm wondering if there are any tiny devices that will play a given song (on repeat likely) when power is supplied to the device? If you've ever seen one of those birthday cards that plays music when they open then you have a pretty good idea of what I mean. I'm looking for something that would fit inside of an area about half an inch deep by an inch across. Something like you'd see inside of a music box (except scaled down) - does this sort of thing exist? Much thanks! - JM
Posted by jkiesel 10 years ago | last reply 10 years ago
I need a chip that will be able to power 5 or more LEDs not past like 10 though cause it's not necessary channels of LEDs ,I want to be able to have each channel doing different patterns at the same time, blinking ,fading ,or just on. (it doesn't matter how much MA the chip can handle as I will be using transistors to amplify the signal ,most likely) It needs to be able to fit in a 1/2 inch tube. I think this one will work but im not sure. http://www.onsemi.com/PowerSolutions/product.do?id=NCP1840 I think this will only work on printed PCBs if I can i'd rather have something i can wire up with ether perfboard or wires.
Asked by the_burrito_master 6 years ago | last reply 6 years ago
Hi all, Im trying to build a small forge in my small tin shed (9'x11') , due to noise and residential location everything must be inside and the sound proofing makes it pretty airtight, therefore I'm relying 110% on good ventilation design to avoid CO poisoning. The coke forge is in and flued using the side sucker design and 12" insulated duct, so far this works well with the addition of incoming air from the rear of the shop and I have been able to use reasonable quality test equipment to measure CO at acceptable levels (only under ideal conditions, further testing to follow). I have also thought of adding a propane forge (only one forge be used at any one time) but worry about the increased levels of CO produced, I have toyed with the idea of a hood which encompasses the mouth of the forge which would be ducted at 45 degrees into the main stack for the other forge (I would like to minimise roof penetrations if possible) I have made a rough sketch (in paint sorry) to demonstrate what I mean, do you think a fanned draught inducer is necessary/useful, we don't use them much in the UK so im not sure how much draught they induce :), is the flue angle/ bends going to reduce efficiency greatly and would adding a fan to the intake to change to positive pressure internally make that much difference? Any other ventilation advise would be greatly appreciated, including anything to help understand the maths required to calculate correct air volumes etc, I'm fairly serious about doing this correctly, understand in some detail the dangers of CO exposure and would not concider continuing without thorough testing for safety. Thanks in advance, drawing not even slightly to scale :)
Asked by Squibo 2 years ago | last reply 2 years ago
Two Bangladeshi newspapers have apologised after publishing an article taken from a satirical US website which claimed the Moon landings were faked.The Daily Manab Zamin said US astronaut Neil Armstrong had shocked a news conference by saying he now knew it had been an "elaborate hoax".Neither they nor the New Nation, which later picked up the story, realised the Onion was not a genuine news site.Both have now apologised to their readers for not checking the story."We thought it was true so we printed it without checking," associate editor Hasanuzzuman Khan told the AFP news agency."We didn't know the Onion was not a real news site." The Onion article claimed that Armstrong had been convinced by a website written by a part-time librarian;"It only took a few hastily written paragraphs published by this passionate denier of mankind's so-called 'greatest technological achievement' for me to realize I had been living a lie, " said a visibly emotional Armstrong, addressing reporters at his home. "It has become painfully clear to me that on July 20, 1969, the Lunar Module under the control of my crew did not in fact travel 250,000 miles over eight days, touch down on the moon, and perform various experiments, ushering in a new era for humanity. Instead, the entire thing was filmed on a soundstage, most likely in New Mexico."Obviously, this is a major embarrassment for the newspapers involved, and clearly shows how modern "journalism" is really just copy-paste-spin (witness The Daily Mail's recent "pregnant immigrant" slant on UK population data)You've got to wonder, though - how much other net-sourced nonsense has made it to the headlines as "news"?The Onion articleManabzamin newspaperNew Nation (Tagline: "Bangladesh's Independent News Source"!)
Posted by Kiteman 9 years ago | last reply 9 years ago
In the Site Updates forum, the goddess of code Rachel reported on last night's minor roll-out: I've just released a small set of changes: new footer featured and popular items are now split out by channel home page shows both featured and popular items in the same list searching on an exact channel name gets you to the main page for that channel various small formatting fixes I wanted to make some comments on two of these changes, both pro and con. The new footer is different, to be sure, but I don't think it's too bad. All the information is there, and relatively straightforward. Having the search box at the top and the bottom is a great idea! The extremely dark background is not very accessible, though. I think a pale grey (the same grey used in the header) with normal black text would be a better choice for our low-vision users. I'm not particularly happy with having the Featured and Popular stuff jumbled up together, and indistinguishable. Those two states are really different, and the have different implications for the Instructables involved. If you're going to jumble them up, could you at least put the nice Featured banner onto the thumbnails? UPDATE 23 Apr 2010: They've added the banner to the home-page giant thumbnails, and have created a new Popular banner as well. Also, many thanks to Rachel for fixing my very own bug! Now the masthead (and new footer) are properly rendered even when I use the horizontal scroll bar.
Posted by kelseymh 8 years ago | last reply 8 years ago
I need a relatively small and cheap way to play a short soundbite, anywhere from 5 to 10 seconds and I am curious if any of you could point me in the right direction. Tips on small effective speakers would also be helpful!
Asked by seedorfj 4 years ago | last reply 4 years ago
Hello everybody it's been a long time since I have posted a forum topic on here but I just built a a new KNEX rack and pinion I would like to so everybody. The only other rack and pinion on Instructables was made by Killer~SafeCracker but it was huge and not to practical to put into a model. So here is a new rack and pinion that I made and it's way smaller then the one built by Killer~SafeCracker. The secret to this design is that it' uses a Micro KNEX to build the rack. I think there is a lot of neat things that could be made with this so please tell me what you come up with!
Posted by sonic broom 2 years ago | last reply 2 years ago
I'm working on a project that needs a purdy dang small speaker, but it still needs to be loud enough to be heard clearly from about 10 feet away. Now, I know that when you loose size you loose watts and when you loose watts you loose volume, but I was wondering if anybody could recommend a speaker 50-ish millimeters or less in diameter and loud enough to be heard clearly from 10 feet away. If it helps, I'm working with an Arduino with an Adafruit Wave Shield to make a human voice speak English (American-ish). Thanks for the help, Schmidtn
Asked by Schmidtn 8 years ago | last reply 8 years ago
I need you help bright minds of Instructables!I want to make a very small Tesla coil and I have the right schematic! But I still remain a n00b in electronics...This schematic is used in:Nano Tesla Coil I http://www.extremeelectronics.co.uk/coils/nt/Nano Tesla Coil II http://www.extremeelectronics.co.uk/coils/nt/index.php?page=nanotess2.phpHelp me build the schematic below... I would be very grateful to one who makes the schemactic in Eagle or other program that shows everything connected together.Thanks you very much!Stanislav A.K.A. Comodore
Asked by comodore 9 years ago | last reply 7 years ago
I'm 3D printing a small translucent object that I'd like to light with a single LED. I'd prefer the assembly to be as small as possible, powered by a "watch battery" or two. It need not even have a switch; if the battery is in, it's on. It need not flash or be controllable in any other way. What electronic components do I need for something like this? Huge thanks! Jerry
Posted by jhatchett2 5 years ago | last reply 5 years ago
If anyone is looking for an advanced cool project, here it is: Acoustic Levitation. Scientists at Northwestern Polytechnical University in Xian have used sound waves to levitate small creatures while they are still alive, without causing them any apparent harm.
Posted by ewilhelm 12 years ago | last reply 12 years ago
I was wondering if any one had heard of attaching a small turbo charger to a lawn mower or weed whacker , if anyone has heard of it could you explain how, as i am anxious to try this with my recently salvaged 2 stroke and just see as much power i can suck from it.
Posted by firemanfu 10 years ago | last reply 1 year ago
I assume the answer is no, because I can't find any examples of it, but my question is - is it possible to get the boke effects such as stars and hearts using a small lensed digital camera? I've tried a scaled down version to the lens cap cut-outs used on SLRs but no luck; even with a big star or a very, very small star. I put the camera on a tripod and use the candle light setting and manual focus or macro to get the blur but no stars. I just want to know if it is physically possible before I waste any more time on it. The lens is the size of a penny. Thank you.
Asked by FriendOfHumanity 7 years ago | last reply 7 years ago
We are interested in finding some good options for small (100s-10000s) runs of HID devices that would most likely have a few fairly simple electronics components and mechanical components Anyone out there have any suggestions? We would like to find places that are cost effective, could work well with newbies to the process, and might be interested in building an ongoing relationship for multiple projects. Cheers, Heather and Joe PS The mfg need is related to this: https://www.instructables.com/community/Make-HID-beautiful-1/ which leaves the door fairly wide open for wide variety of HID designs and possible related projects. B-)
Posted by parrleu 5 years ago
I want to build a small cabinet based on the TARDIS. I want the doors to open and close automatically and, of course, make the sound. It will only by 12 or so inches tall so I don't need anything big to do this. Ideally, I'd like to activate it by touch. My first idea was to start with the wiring for The Most Useless Machine and move on from there. Think that's a good start? Any better ideas on how to do it? The full build will be in an instructable.
Posted by mvealey 6 months ago | last reply 6 months ago
I want to make a very small charm that will play a short beep sequence alarm every hour. It does not need a stop button for the alarm, just beep a few times then be silent for another hour. I'm thinking attiny, speaker, battery. Or something along those lines. Or is this simpler with a 555 (I've never used one before)? I have used attiny for lights, but never anything with sound. Can anybody point me in the right direction for code and also a good place to buy tiny inexpensive speakers? Thanks so much!
Asked by aliasjanedoe 11 months ago | last reply 11 months ago
Hi all,I'd like to make a bunch of small generators, like Pleech turbines, for example. Each one might only be producing a couple volts and however much power. What is the best way to connect them together to get their combined power?I was thinking that I could just give each generator its own rectifier, and then connect everything together in series. Would that be efficient?My circuitry understanding is a little limited, so a simple solution that is 90% efficient may be better than a complicated solution that's 100% efficient.... :)Thanks for any suggestions!
Posted by Asbestos 10 years ago | last reply 1 year ago
Hello all. i am currently working on an air powered rifle. my goal is for it to be self contained, so i took apart a testors airbrush compressor and i am fitting the compressor assembly to a 12v blower motor for an early 90s toyota 4runner. is there any way that i can make or purchase a 12v battery pack to power this thing?
Posted by dans89 8 years ago | last reply 6 years ago
Ok i bought this 18,000 rpm motor at radioshack and i want to put it in my airsoft gun (replacing the old one) hoping it would be much faster. But i have have it 6 volts and it is slower then my old motor then i tried hooking a nine-volt to it and it does nothing. I looked on the box and it says 1.93A. what voltage is tht???
Posted by fretmelter 11 years ago | last reply 11 years ago
I would love to know the smallest, yet economical, way to have 3 LED's turn off WITHOUT having a wired connection. I want to have a (or several) battery operated LEDs which could be remotely turned on and off by use of radio frequency (garage door opener), sound (The Clapper), magic (David Copperfield), or some as yet unknown method. 1 transmitter would operate all lights simultaneously. The transmitter could be any size, but the receiving end (the lights) have to be kept small. What would I have to use to have the smallest solution? I thought the creative minds here might be able to figure it out. Any help??
Posted by craigo 7 years ago
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 < blower ==== 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 7 years ago | last reply 6 years ago
Hello,Just wondering if anyone has seen an attachment to a CO2 cartridge, where you can spray like a compressed air can for a computer?Where this activates when you press on a tire.Has anyone seen an attachment where you can press a button and get a stream of air like a compressed air can?thanks http://www.ebikestop.com/prodimages/PU8010_medium.jpghttp://www.ebikestop.com/genuine_innovations_air_chuck_sl_inflation_device_includes_16g_cartridge-PU8010.php
Posted by gregdove 10 years ago | last reply 10 years ago
HI. Im trying to complete a circuit with my arduino through a pwm pin. The circuit is for one of those triggered rc car track games. Im using transistors to try to make the circuit turn off and on at the will of the arduino but the circuit is never broken and the car the arduino is supposed to control keeps moving. Any ideas as to how I can maybe use transistors without it doing what it did(also without using relay)???
Asked by the_joker_ 5 years ago | last reply 5 years ago
Looking into building a CNC maybe 15 x 20 inches working area, and need help:O Ive seen several instructables about it but still not sure which type of motors to use and why, where to buy the circuitboard OR how to program a DIY one, what are the 4th and 5th axes, and will it be expensive? Also are there any other hazards i should think about during the build? Any help would be greatly apprecited, thanks.
Asked by brimckeon 10 years ago | last reply 10 years ago
I am looking for someone who can design for me to make or make for me a specialized hot plate. I need it to be small like 3" by 2" and to get very hot as much as 700 degrees is desired. I want the power source to be 400watts. I know this seems hard but my reasoning is that the smaller size means higher temps with less wattage. I would use this as a hot plate that evaporates liquid from an airstream as it passes by - a dryer if you like. I would use 2 to cause the air to have to pass both in a zig-zag path. I would like to have a solid surface so eventually I see the plate encased in ceramic but for this it need only be metal. Can you help? Contact me here on the site to discuss more details Coog
Posted by coogrrr 6 years ago | last reply 6 years ago