Help! mouse is being stupid!

HELP! My mouse has a clicking problem. In that; whenever i try to click, it doesn't work, and i find myself having to click multiple times with some force in order to get a result, but it's not consistent. Sometimes, it works straight off, and sometimes it takes upwards of 20 clicks, in order to get my computer to do anything. The problem's also isolated to only the left button, the right one's fine. I reckon it's just dirt or something in the mouse, but it's really inconvenient. Any ideas on what i can do to fix it? can i fix it? To give you something pretty to look at, here's a brass cog: Thanks for all the replies. I've just had the case off, and cleaned the rollers. I looked at the switch and there was no dirt packed around it. I clicked the switch without the case on and it still didn't work, which leads me to believe that it's actually the switch that's damaged, and therefore it's not worth trying to fix.

Posted by Vendigroth 11 years ago  |  last reply 3 months ago


waterproof material?

Can someone tell me what material I can buy that is lightweight, molds like clay, is waterproof and singeproof, and won't break the bank? does such a miracle substance even exist?

Posted by Karv 10 years ago  |  last reply 3 months ago


K'nex M4 Carbine

About time I made an M4 carbine. The farthest shooting/accurate and sturdiest gun i've made to date mostly due to the muzzle loading. WHAT!!! NO MAGAZINE!!! yep, it was abandoned due to horrible range and often jams. It's more of a sniper than an assault rifle and is extremely accurate with a grey rod + grey connector. It uses a modded dsmans barrel for maximum accuracy and distance, accuracy due to the barrel going through the forgrip. I also added a 4-railed foregrip for attachments such as virtical foregrip (shown in pic), bipod, dot scope, lights/lasers, or anything that can attach. Tell me what you guys think.

Posted by Trauts 10 years ago  |  last reply 3 months ago


I am looking to find out how to convert any letter or image to look like a cut stencil for marketing purposes.

Does anyone know how to convert any letter or image to look like a cut stencil for marketing purposes. I have attached what it is I am trying to do. I have cricut designspace and inkscape.Any help would be appreciated.

Posted by kprescod 3 months ago  |  last reply 3 months ago


Pinterest image rotated, bug?

Anyone having issues with images rotating when they try to share in Pinterest? When I try to share, some of mine have their images rotated 90 degrees. Attached a screen shot. Anyone know a solution to this? I emailed support to see if they have some suggestions.

Posted by jpmarth 3 months ago  |  last reply 3 months ago


Will replicate any gun*

Yup you give me a gun and I will replicate it* I just don't know what to build but I really need something to post NOW! I'm trying to build my rep up even more so I'm hoping to have at least 10 replicated guns before the end of this summer. Please leave me a good picture of the gun or a link to it. I have the right to reject any gun that I feel I either dislike (miniguns) are too simple (sten) or too complex (uh...insert some very complex weapon here)*will not make anything that involves explosives unless I feel like having an extra grenade launcher or something. I have enough pieces to make most weapons but still limited so nothing big. I will also not make a random gun with just requested features it has to be a real gun.Edit: To encourage people to vote for a gun I'm going to list the features I hope to include in the gun if I do make it.~List of guns~SAW-1 I'll try adding a chain either for actual loading or most likely looks not sure what else yet.M1 Garand-2 I'll probably try a similar loading style.MP5-1 Detacheable mag plus extendable stock.FN F9000-2 (just one more vote) Bullpup design and...well I'm not sure what elseDragunov-1 Detacheable mag and I'm not sure what else but there will be more.You may either place one vote or add your own. I'm only taking 2 more requests bofore you have to vote on one of the choices. If you vote for someone's idea then please post so in a reply to their weapon so I can keep track of how many people voted for it.I'll probably hold this topic until one of the guns (or an new suggested gun) gets 3 votes so hopefully it won't be too long. Then I'll build the next to reach 3 and so on. New guns will be able to replace the old ones in the list that get built.

Posted by TheDunkis 10 years ago  |  last reply 3 months ago


Polishing small or very detailed metal parts - the easy way ;)

I should not get hoocked on the cummunity side here again but well, I am bored today...If you have a vintage car, some old steam engine models or even really old clocks then you know my pain.Copper, brass and sometimes aluminium was used and if not cared for in time they nice shine goes first.Dirt and dust come next.And with more time passed we start to consider leaving it as the polishing would take forever.Take one of my "hobbies": old mantle clocks...Literally everything inside is brass.Now polishing a bass backing plate with some holes is quite easy if you have an ultrasonic cleaner to clean the debris out of the tiny holes when done.Even tried to polish a sprocket or fine spring mechanism?If spoked then this is a really painful job.But the same is true if you have old copper and brass ware, like these old stenciled pictures on copper sheets.No matter what you try these jobs end up to take more time than what you imagined and in many cases fine details are left oxidised or filled with the polishing compount.Now imagine you could get rid of these tarnishes and discolorations without cramps in your hand and bying all sorts of polishing products?Sure there are the well known brands that polish a lot of metal with ease by simply wiping over them.But they use harmful and often toxic chemicals and are still no good for really fine details like grooves or emossed stuff.Wearing gloves and protection is often a must and at least I can't stand the stink of them.We all know how to clean our dishes, even how to get the dried on lasagne from last night off the dinner plates.So why not do the same with our brass, copper or aluminium parts?Just use a spongue, rub and wipe a bit, rinse off and let dry.Ok, those who tried before reding the rest might be a bit angry now as it does not work that easy.Well, actually it does, just don't use dishwashing liquid :)Let me give you two of the worst cleaning problems I encountered first:You did some very fine brazing to create something nice from brass or bronze.The flux you can wash off, but polishing the discoloration from the heat and resulting oxidisation will take longe than the brazing job.The other ecounter was the restauration of a petromax style blow torch of alomst 60 years of age - but thankfully it was never used for more than decoration.All brass and a lot parts impossible to polish due to size and being quite delicate.Now we all have ways to spend a lot of time and being creative to use normal ways of polishing.And, yes I did so myself for many years and kick can myself now too.Since we can't do any advertising here and I clearly don't want to promote any brands or harm other brands by rendering their costly products useless I need a way out that helps everyone.So, again, I am not trying to promote anything here!However I noticed someone in my favourite restaurants kitchen polishing some dark copper pot to a mirrow shine in less than 5 minutes!I was shocked and asked the manager to explain what I just saw.He was confused to say the least..."We clean our pots every day, sometimes more depending on what we cooked in them."Sure but what do you use to do what I need several hours for in minutes and with better results?"Just water and soapy powder to shine the metal sir. All natural product."Omg god or Kali! What makes it shine so quickly?"Shining powder sir!" - mind you the poor guy was now totally confused and worried, while I started to loose my insanity.He noticed the look on my face and went into the kitchen.Gave me a fance looking bag that apart from a lot of Indian writing I could not make any sense of stated "Shining powder" on the pack.When the manager saw the look on face this time he laughed and asked "How do you clean your copper pots sir?"I was speechless and just said with much more time and elbow grease...He packed about thimble worth of powder for me to try and said it would be enough for a medium sizde pot, just use a wet spongue and put a little bit of powder on it.And guess what the stuff worked as good as in the restaurant :(I can't even count how many hours I wasted polishing copper or brass parts with fine details.Or engine parts from aluminium with brass parts inside....With this stuff you just wipe and tough cases rub a bit harder and all is done in literally seconds.In tight areas or those with fine details you use a fine brush like those for painting in water colors.And with that and a spongue you clean even the finest details with ease.In an ultrasonic cleaner it even works on areas you can't reach, just wipe what you can reach and see somehow and it shines.Now if you want this magic stuff and check if the guy here is just pulling your leg then be prepared to pay a lot of money.200 grams of this powder will set you back between 5 and 15 bucks depending on where you shop.That is enough clean about 300 midsized copper pots or a few hundret meters of copper piping....Just ask for shining powder in your Indian grocery store ;)We all waste money or stuff we don't need, so if you have coper, brass or aluminium to polish then try washing it the Indian way - just for fun of testing something else.And if after that test you think the few bucks and information was well worth it than please post your experience with the powder in the comments below.I hope all those members here working with these metals will read this too, so if not help me to spread the word please ;)I am struggling to upload some pics I have taken from the blow torch but will try again alter once I reduced their size.If in doubt I will upload them to a hoster and link them.Disclaimer:I don't advertise, I don't promote!However I am so pleased with this dirt cheap product that I use it now as my prefered and natural option.For this reason I think it is worth sharing.It is not a magic cure! If you have pitted areas, solder marks or brazin coming out of joints it will not help.Same for scratches, they still require abrasive polishing to be removed.But normal dirt from being displayed for years, oxidisation and even slight discoloration from corrosion will vanish.And if the surface has a good polish underneath all this than it will come back with ease ;)

Posted by Downunder35m 3 months ago  |  last reply 3 months ago


Arduino or Teensy coil winder - any code already out there?

I am in the process of deciding on a normal 8bit Arduino platform or a Teensy for my coil winder project.A found some interesting projects online, some with the code available too.But I was wondering if someone already implemented more than just winding a coil in such a project?At Krux.org is a nice winder based on a normal Arduino while the Alba winder uses a Teensy already to gain more precision and speed I guess.Misusing some printer or CNC code to be able to generate coils by G-code sounded nice at first but turned out to be more complex than actually required.My goal is actually rather simple despite the size and all, so let me try to explain what I want to be able to do:Have a modular winder setup so basically any winding task can be done with just two stepper motors.One for the spin, one to position the wire.Additions like limit switches and external counters are nice but usually not required for such a task if the the code is properly done.As a basic winder like all the examples out there it should be possible to just enter the wire diamter and number of turns and then push a button to wait for the finnished coil.In theory things like pitch or spacing can be calculated externally and then entered as a fictive wire diameter but of course this would be not user friendly enough ;)For special RF coils it is often required to keep an even turn spacing as well as creating a coil with many layers.So far I have been unable to find any usable code for this purpose that does not require glue, guides or at least waxing the wire.Although this seems to be simple enough, when adding things like a display and counters it soon starts to get messy with timings and steps.Is there anything out there that works properly on a 8bit processor with reasonable speed?Originally I wanted to use an OLED with touchscreen.This turned out to be too much for the timing on a Mega.Without messing around with timers and interrupts it seem a 20x4 LCD is the only option.Even then the refresh must be in sync with the tart of a new turn as otherwise the motors miss some steps here and there.These things run a 3D printer or little laser cutter with ease, so I am definately doing something wong with my approach here LOL

Posted by Downunder35m 3 months ago


3D Printer Thermistor in a K type thermocouple

Hi all,Quick question before I butcher something unnecessarily.Can I connect a bog standard thermistor as found in Chinese 3D printer (of which I have spares) to a k type thermocouple plug (I have none) and use it in my k type thermometer?Or should I just buy the slightly more expensive correct lead?I want to monitor temps @ the heat break of a new hot end.

Posted by Squibo 3 months ago  |  last reply 3 months ago


Going to sleep with HP monitor

So I am trying to help my grandparents fix there computer, they have a dell pc ( don’t know what exactly ) and a hp 22cwa monitor. The monitor will stay on in tell I plug the hdmi in then it says no signal then goes to sleep mode, I have tried new mouse and keyboard on the computer, as well as using another cord on this monitor and pc but neither work. I did take the monitor to my pc and used the same cords and it instantly worked with both cords just fine. Before today this monitor has been working for almost 6 months with no problem and now is randomly doing thos

Posted by huongrio 3 months ago  |  last reply 3 months ago


Plushie: CAD program for Stuffed toys and Inflatables

This is an awesome tool for designing teddy bears, stuffed animals, and big inflatable items with complicated shapes. It's called Plushie, and it looks incredibly easy to use. It's kind of like Sketchup, but for blobs of stuff. You just start drawing in 2D, and it makes smart guesses at the volume that you're trying to create. Once you're done, it generates the pattern for you that you need to cut out. Here's their cool video: It's a Java-based Windows app. Someone should definitely make something with this!(I found this via the We Make Money not Art.)

Posted by nagutron 11 years ago  |  last reply 3 months ago


Split Tesla coils anyone?!

I am collecting data in the form of old pics, patents, newpaper and magazine articles as well as just doing things.Tesla coils are fun but is anyone experimenting with the original "multiplying transformer" that Tesla created?And before you say, sure I have a Tesla coil......I mean:Large diameter primary coil with one part of the secondary in very close proximity while the other half of the secondary is located at the center ;)

Posted by Downunder35m 4 months ago  |  last reply 3 months 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  |  last reply 3 months ago


Remote control damaged, how do i train my dth remote?

My TV Remote control damaged and it is not working, now how do i train my dth remote?

Posted by SrinivasR45 3 months ago  |  last reply 3 months ago


Find or How to Replace Old Dried Out Gaskets in a Set of 4 Ceramic Kitchen Canisters

We have a set of 4 ceramic kitchen canisters that are so old the foam seals, or gaskets, have dried out. I cannot find replacement gaskets anywhere. They were made by an individual, so there is no company to write to for replacement parts. Does anyone know who sells such gaskets? Foam or rubber or silicon will work.Or, is there a way of making replacements? I've seen amazing things done on "instructables" with silicon; molds, fake heads, toy octopus, etc. But I have never worked with it. Is it OK for a seal that will be in close proximity with salt, sugar, flour?The canisters are glazed ceramics that some individual has made.Attached are photos of the canister, mating surfaces, and existing gasket.Any suggestions will be appreciated.Thank you.Phil Brown, Southwest Wisconsin

Posted by oghk2000 4 months ago  |  last reply 3 months ago


Looking for Used Lighter

Looking for used disposable lighters, preferably bic, for an art project for class about sustainability. Any size will work. please let me know if you have some I will be happy to pay for shipping.Best,Spins

Posted by jspins123 4 months ago  |  last reply 3 months ago


Chaining 4 74HC595 shift registers together

I have a question about chaining 4 shift registers together.I am going to be sending data to four shift registers and my question is this, when all four are loaded and latched if I send more data is it possible to only send data to the first register in the chain without the others losing their values?

Posted by mbcharney 4 months ago  |  last reply 4 months ago


The indestructable bike lock! ...Idea

The indestructable bike lock: the forum topic that was posted undeniably just to annoy the future patenters!So I had this weird idea for a product come out of nowhere. Y'know how aluminum is supposed to make cutting wheels on an angle grinder gum up, stick, and shatter - when trying to cut it, that is? I was wondering, what if a company engineered a special type of aluminum alloy or a similar material that would do just that: gum up abrasive cutting wheels and make them stick/bind and shatter. Then like with layers of plywood, it would be sandwiched together with hardened steel, in the shape of a U-lock bike lock, making it: Impossible to cut through with a hacksaw, reciprocating saw, TCT bladed portaband , because it's hardened and would wreck the teeth. Impossible to cut through with an angle grinder or rotary tool with an abrasive wheel because the aluminum would gum it up. Impossible to cut through it with bolt cutters - obviously... Impossible to freeze it with freezing gas? I don't know. I heard that's what thieves do. Maybe that aluminum alloy would be a super-insulator and wouldn't allow the hardened steel layer to freeze and become more brittle?I think it might just be invincible until the portable cordless battery powered waterjet is invented!Thoughts?

Posted by Yonatan24 6 months ago  |  last reply 4 months ago


Slip ring

I am looking to build a rotating electrical connector, better known (in the electrical world) as a slip ring.The basics (my layperson terms) would include a stationary ring (fed by a power source AC/DC) and a rotating ring having 2-4 connecting points being in direct contact with the stationary ring allowing for power to be supplied to moving (rotating) devices connected to the connection points of the rotating ring.

Posted by Bill Haas 5 months ago  |  last reply 4 months ago


Has anybody tried painting LEDs?

Because the colors available just aren't enough and we want more. *glances at collection of smt LEDs then at collection of nail polishes* The odds of me blowing up an LED or setting something on fire are slim, right?

Posted by aliasjanedoe 9 years ago  |  last reply 4 months ago


Cheap ideas

Looking for cheap ways to make something out of tension wire spool.

Posted by DUMB8 4 months ago  |  last reply 4 months ago


Making a water heater from a soldering iron?

I have got a soldering iron  of  60W, (with a damaged tip). And the main purpose of this project is to make a low power water or coffee heater with things you already have.  Im not a tech savy, but i know that the iron has a 2 pin socket. So, if you dip it directly in water, u'll get a shock if you touch the water. Another modification is needed- the heating rod.  the rod is made of crude iron, which can easily rust, and the tip has some leftover solder, which can poison the coffee.  can someone help in this?

Posted by arnab321 7 years ago  |  last reply 4 months ago


Advice needed on adding a Wind Turbine (generator) to a DIY PV Solar System.

I have bought a 12 volt FD-300 300 watt wind turbine to add to my 12 volt DIY solar setup. The solar setup consists of 3 home made 70 watt panels on a single axis tracker charging 6x 12 volt 85 ah batteries wired in parallel (510 ah total) through a 20 amp controller. I run a 12 volt fridge/freezer (120 liter) and my now 12 volt (was 240 volt) evaporative air cooler (cools our 3 bedroom house) off the controller load output. The wind turbine has an inbuilt regulator. The instructions for the wind turbine tell me to attach it's + and - wires directly to it's own dedicated terminals on the battery bank. This is of great concern to me. How can this be done when the batteries are already connected to each other and to my systems controller? If it can be done without damage to the batteries would I still run the appliances through the load output on my controller? Would the different charge limiters cause an issue? My controller cuts out at 13.7 volts while the turbines controller would want to allow a charge of 14.1 volts. The two controllers also have different lower limits. As you can see I'm confused and in desperate need of quality advice. Thank you for taking the time to read this.

Posted by Rob Patterson 10 years ago  |  last reply 4 months ago


Need Help Bypassing Surf Control "ACCESS DENIED" At School??

Hey guys it's me again, and I got a problem! Looking for some advice again! When I'm at school pretty much everything is blocked with this surf control and it says access denied. How and is there a way that I can bypass this?? NOTE: I HAVE ALREADY TRIED PROXY'S

Posted by rickick 10 years ago  |  last reply 4 months ago


Led on in sequence one by one

I want to make a circuit to turn on all led one by one. I tried to do it with 4017 . But that ic turn off the previous led but i want to tun on all led one by bye in sequence.

Posted by HoneyS26 7 months ago  |  last reply 4 months ago


Compact ight sensor switch with low voltage

Hi there,I've got a led light that's operated via a magnet, if it doesn't detect a magnetic field it turns on if it does it turns off. It's a led light for car door(check picture for reference) and uses 3x AAA batteries in my case 1.2v x3 (3.6v), if you use regular batteries it's 4.5vBy mistake I've order a tiny light sensor module 3.3-5v(check picture) which obviously can't be used as a switch, not in it's present form. While I'm good with solder, I've build an ebike, I'm a computer guy but when it comes to things like this like this make me feel powerless :( ..I 've used 12v light sensor switches but that's a different topic.So, how can I have a low powered light sensor switch that's compact and can save me from replacing the batteries frequent? ...the led light turns on even at daytime which has no point in doing that. I'd appriciate any help :D

Posted by Takisk1 7 months ago  |  last reply 4 months ago


Dual timer switch

Is there a commercial dual timer switch that the first timer can be set for longer duration like hourly or half hourly and then switch on another timer that run in seconds. Or is there a DIY solution? Eg. Turning on a water sprayer every 2 hours for 10 seconds. I need a timer that run from the mains.

Posted by TanJ21 7 months ago  |  last reply 4 months ago


Will pay someone to make this for me.

Https://www.instructables.com/id/Counter-Strike-C4...I want to make this but I'm missing alot of the parts needed to do this myself. So I'm paying anyone who can make one look as close to the ones the others have made with working LED and everyone.

Posted by razz5 5 months ago  |  last reply 4 months ago


Ethernet selector between 4 different sources

Hello, I'm trying to design a switch box to switch between 4 different ethernet sources and output to one cable. I've checked around and believe I have developed a way to do it, but I am unable to find a switch that uses 4 smaller independent switches. The concept seems pretty straight forward but I don't want to use 16 switches. Please let me know if there is a switch which controls 4 independent connections or if there is a better way that I'm over looking. I look forward to your input! Best Regards, Zach G

Posted by lossofworth 4 years ago  |  last reply 4 months ago


Rotating multi-layer Face scupture

Hi I would like to make a diy small scale version of the following video.https://www.youtube.com/watch?v=8yQ4Pscb-ZQ Preferably a Lord Buddha head version of it. I am pretty creative but not mechanically inclined.challenges are as follows:_1) how to get a 3d scan of a buddha head i already have 2) cut the 3d scan horizontally in multi layers3) make a small scale model4) make the different layers rotate and control individually5) make it artsy...i am good with that so dont need much help

Posted by rav527 4 months ago  |  last reply 4 months ago


Replies to Message in my Inbox does not show up in Mobile view

Mobile: Android. Browser: Chrome.When someone sends me a message on Instructables, it shows up in my inbox. When I reply to that message, it doesn't display it below the recieved message. Although the replied message does show up in the Sent section.#Feedback #Bug

Posted by Jonathanrjpereira 4 months ago  |  last reply 4 months ago


Text window won't allow typing

Trying to add new instructable but the edit window will not accept any text input?Win7, Firefox which always used in past without trouble.Ideas?

Posted by stuffdone 5 months ago  |  last reply 4 months ago


Hi, I'm New :)

I was a simple man, love hardware, but never knew how it works.However, a good friend of mine gave me Arduino nano.since I do not know anything about the dev, I would like to gather some info, ask questions for developing, coding and others.So, heyyyy Im new, teach me senpai(s)!

Posted by Wario_Bros 4 months ago  |  last reply 4 months ago


Where can I find Recycled Pet Felt sheets?

Where can I get completely recycled pet felt sheets. Would require them in large quantities for development of furniture. Is there any option in India?

Posted by bedraj.tripathy 4 months ago


Need help building a small extension for my desk

I got a microphone arm that clamps down to my desk ( can be seen in the picture) but the problem is that it's right in front of my mouse. I have to have it folded it up because it does not have to be extended since it's right there. It has gotten annoying after a while and I change it to hang from essentially where my window is ( also shown). my desk is has drawers and doesn't have any edges to clamp it down to so I was thinking if I can make a short extension for it. I don't need a whole new section I just need a secure extension that can be used to sustain the weight of the arm and mic. I tried drawing it and I hope it helps showing you guys what I envision. Thanks!

Posted by Crux_Yo 4 months ago  |  last reply 4 months ago


A rewiring electric scooter issue

WHEN I REWIRED MY EZIP 1000 ELECTRIC SCOOTER, NOTHING SEEMED TO WORK BUT WHEN I TWISTED THE THROTTLE THE POWER SWITCH LIGHT CAME ON. IT WENT OFF WHEN I RELEASED THE THROTTLE. WHAT DID I DO WRONG?

Posted by floridianskin 4 months ago  |  last reply 4 months ago


Things you can craft from (Recycling!)

Here is a list of some great things you can craft things out of:CARDBOARD:-Empty Shoe box-Used Poster boards-Empty Dunkin Donuts Munchkin or Doughnut box-Empty Pizza BoxesCONTAINERS:-Empty Altoids candy box-Empty Water bottlePAPER:-Newspaper-Used Paper (like one you used to write phone numbers on)PLASTIC:-Empty water bottles-Empty milk containers*Adding more soon!*

Posted by dragonblue80 10 years ago  |  last reply 4 months ago


Question about dumpster diving in Tennessee

Anyone know if it's legal in Tennessee? I keep calling the police but they just keep saying no instantally. Best as i can they they are assuming I'm looking to steal ID's or meth supplies (big probs with that here). I don't mind the risk of getting yelled at the the store guys but i don't want to get arrested. Also I'm not dumb enough to dig around in private dumpsters here, I'd sooner get arrested than shot to pieces LOL :P

Posted by Vizth 9 years ago  |  last reply 4 months ago


We should have a Back to School Challenge!

I think that this would be a great, fun, and relevant contest for the months of August and September.

Posted by jseely23 5 months ago  |  last reply 4 months ago


Would a small scale model of your own house fit in the theme the Tiny Home contest?

Question for mods. Sorry if this is the wrong spot.

Posted by DIYJRAY 5 months ago  |  last reply 4 months ago


Calibrate Compass

I have compass cmps-12 and i want to use it or calibrate it with my raspberry pi 3 using python. I already check on website but im not find it how to make it work. Please anyone knows how to calibrate compass cmps using python on raspi3 i need your help. :(

Posted by alharis 4 months ago  |  last reply 4 months ago


Construction of a robot learning to move in internal rooms

I am looking for a person who knows how to make a robot that will move inside the space, avoid obstacles and create maps of the rooms in which he works?

Posted by finder11 5 months ago  |  last reply 4 months ago


What to do with old vacuum tubes?

I recently found a really old tv in a crawlspace at work and I brought it home and salvaged 13 vacuum tubes out of it. I figured I could make some sort of cool project out of them like maybe a mad scientist lamp with LEDs or something. But before I actually start using them I wanted to brainstorm some more ideas of possible projects. So if anybody has any good ideas of cool things to do with vacuum tubes, let me know. Also, just out of a nerdy curiosity I was wondering what exactly vacuum tubes are designed to do, does anyone know?

Posted by cannedham160 9 years ago  |  last reply 4 months ago


Trying to create my own car head unit.. Sorta.

So i enjoy electronics, so i thought of an idea that would really benefit my life. I enjoy listening to music in the car. Like really enjoy it. Currently i have the original head unit that came with the ford focus mk1. Its terrible, and the speakers distort at loud volumes. Plus there is no way currently for me to listen to my own music apart from a CD. Which come on.. no one uses anymore.So here's my idea that im finding difficult to bring to light. I was hoping i could create some sort of botch head unit. But i want to create this using components that are not end products. So no i do not want a £100+ amp that does this for me without the DIY. It should be a lot cheaper to do this DIY.So my idea was 1 amplifier circuit board, which is difficult to find to power 4, 4 Ohm speakers. So my idea was to have 4 separate amplifiers for each speaker. I can't find a single channel amplifier to power a 4 Ohm speaker however. The signal the amplifiers would receive would be through an auxiliary cable or bluetooth reciever.Any ideas to point me in the right direction would be awesome. If there's a loophole in my idea then please let me know. Still a lot to learn, but that's what were here for right.Thanks in advance.

Posted by BrandonC211 4 months ago  |  last reply 4 months ago


Edf jet longboard how much thrust is needed

Hello i want to create a longboard that is powerd by an edf jet engine just would like to know how much thrust whould i need to me

Posted by paul the maker 4 months ago  |  last reply 4 months ago


Tool for vibrating concrete? (DIY?)

So I've been thinking of making some homemade concrete stuff with different molds I plan on making. Since I'm not a big expert on concrete and such I've been reading all over the Internet for how-to guides and what not. And something that seems to be a really good idea is to use a tool to vibrate out the bubbles and air pockets from the molds before they set... and so far I've not found any instructable here on how to make such a tool ( because it's a bit expensive to buy one, and hey.. why not make it myself) So my question is simply if any one know of a good idea of such a tool, how to make one or whatever.. (maybe modifying something, making one from an electric motor?) I need ideas!  

Posted by Mr_And3rsson 7 years ago  |  last reply 4 months ago


Time constants of batteries ?

Hi,I'm trying to figure out the way solar battery charger work and I'm a bit confused about the following point.I read that for batteries you could consider the PWM voltage to be equivalent to DC. This I understand well for average voltage (obviously it's the same), but what about the dynamics ?If your PWM frequency is something like 100 kHz, that's a 10 µs period. Does the battery has time to follow and make big voltage and current peaks or does it just averages all that to more decent values ?One way to put it is : Are the battery time constants indeed much bigger than the PWM period ?Thanks for any idea on that topic !

Posted by Emmanuel2015 4 months ago  |  last reply 4 months ago


Creating an electromagnet as powerful as an NeFeB magnet with same size

Is this possible?So I'm working on this project on levitation using superconductor and strong NeFeB magnets. I'm try to determine the possibility of replacing the magnets with electromagnets equally as powerful and of the same size if not smaller. But I'm bit skeptic about the idea as I'm not sure how possible it will be to construct such electromagnet (or buy them preferable). Is this something that is possible? can anyone reading this give me recommendations? thanks

Posted by gjimoh 4 months ago  |  last reply 4 months ago


Sheet metal input

Fixin’ to make to magnetic board and need some input on what to purchase. I’m seeing several types of sheet metal. There’s plain sheet metal, zinc plated, cold rolled, weldable, galvanized, etc. Is there a particular type I should purchase? Hoping to avoid anything that will tarnish or leave marks on any paper out on the board. Thank you for your input!

Posted by jpmarth 4 months ago  |  last reply 4 months ago


Solar Powered Electric Wheelchair

I would like to put a Challenge out there for anyone to come up with. You see, I am in a wheelchair and I would love to go hiking with my son, but my chair can only go so far before it needs to be plugged back into a socket. I hate this, because it keeps me from going most places I want to go outdoors. But it dawned on me that if I had a Solar Powered Option to my chair, nothing could hold me back from being outdoors again. Ok yah,  it would help if I could redesign the platform & wheels too, but that's not the most important part... I NEED POWER. So, if anyone feels like taking on a new challenge and you are into Solar Power perhaps you could help me in this way. Thank You for your time in reading this, I hope to plant seeds of inspiration with all of you! May Love Light Your Way, Blessings! 

Posted by CherishJames 1 year ago  |  last reply 4 months ago