how do you make a water wheel?

 Hi I'm soon to move into a property with a rather nice stream running through it. At times it can be quite fast flowing. I thought it would be grat to make an electricity generating water wheel, but don't know where to start. It's not very deep but i can modify it. Any ideas?

Posted by simony 8 years ago

Next Generation of 3D Printing

Printing of metal, smaller feature sizes, more materials? I am working on a project to identify the next innovations that will drive 3D printing forward. Please fill out the attached the survey and comment on this post.

Posted by tchpolo5 4 years ago

VAWT a new way to wind generation

Guys is this feasible???? i have made a 12 month long project of VAWT & new power electronics. so have a look on youtube video guys for whole project explaination.

Posted by nitcool 3 years ago

Playstation Portable (PSP) and iPod Nano 4th Generation

I am selling my PSP gaming system, and my iPod Nano 4th generation. Neither have many scratches (In fact, no deep scratches.), but the nano has a chip of paint missing on the side, which I would estimate to be around 1.5mm across. Very unnoticeable. I would LOVE to trade them both for an iTouch, but I would be willing to sell them. If you have any interest whatsoever, feel free to PM me for pictures/further information! Thank you!

Posted by tssguy123 8 years ago

VAWT a new way to wind generation

Guys need help to realise its feasiblity and pros & cons. This project will comprise of a renewable energy source which is controlled by TI msp430 controller by closed loop system. This renewable energy source will use a magnetically levitated vertical axis wind turbine with single phase permanent magnet alternator made by our team. There will be 3 stationary wind guide vanes/flaps of concave shape on the outer periphery of turbine. These vanes will be controlled by dc gear motor for constant wind flow and protection against high speed winds. Using perturb & observe MPPT algorithm on DC-DC boost converter, constant DC voltage for GRID integration is made. A lower energy Bluetooth module will send data on user computer about whole system parameter, hence making the whole system to be smart and hence data is saved in database.

Posted by nitcool 3 years ago

Very Small Scale Power Generation in Developing World

Hello Everyone, I volunteer for a non-profit which distributes solar lanterns primarily to students as well as people who are in need of the lights.  Things have been going well but a lot of people have inquired about us providing access to a higher powered version for various reasons and we've noticed that some households go back to their old ways when the lanterns don't receive enough sun during the day.  Temporarily we are solving the problem by having local entrepreneurs charge batteries for the families for a small fee but we feel that this should not be a permanent solution. It's not the price that's the issue it's that sometimes the people have to walk for a number of kilometers to get to the nearest charging station or have to cross dangerous terrain (I have personally experienced this). Over the last 3 years we have helped over 5000 families by giving them solar lights so we would like to modify all those units to have more stable energy generation. Our current version has an output of 5 watts. We are looking to buy or build a unit which produces a maximum 8wh an hour until the fuel source runs out or something that can generate in a more slower rate such as 40wh in 16 hours so we can let it run overnight and have the power stored in a battery. We are primarily a donation driven group so something with low cost and maintenance would be really great.  We highly subsidize the price to a large percentage of the households but we also provide them free for the lowest 10% of households who can't even afford the lowered price. I personally think that something which can generate electricity from hydrocarbons due to their high energy density and easy access would be ideal but I'm not an engineer so what do I know.  I'm not sure if this helps in any way but a number of years ago we transitioned a large number of houses from wood fired stoves to gas and as all the families that we help actually have access to gas I was wondering if any good technology exists where electricity can be generated by gas that can meet the low cost and maintenance criteria.  I've looked into thermoelectric generators but they are really inefficient and people will be wasting money to heat their house in a country where average temperatures are in the 30'sC I also see a future issue regarding battery degradation as we use small lead acid batteries and while thinking of a way to solve this I came up with the following idea and is one of the reasons that I'm posting on instructables. What if a pedal powered flywheel generator was built with a 200W generating capacity and 40Wh worth of 'storage'.  When you pedal you will spin up the flywheel and it will store the energy until you need the electricity again and we could also wire up the solar panel that we already use to spin up the flywheel.  So when the sun is out the panel is used and on rainy days and during the night you pedal for a couple of minutes for one hour of lights.  If the flywheel can store the energy for a number of hours then someone could pedal for a couple of minutes at a time throughout the day and not have to do it at night. This is just an idea that I came up with and if anyone has any ideas I'll be really interested in knowing about it (obviously the above solution is not ideal because they have to put some work into generation but it's the best that I can do).  I've quite recently been looking into different types of fuel cells powered by m/ethanol and others like solid oxide cells and they seem interesting (does anyone here have any experience in building these type of cells?).  This community has a lot of intelligent members who think outside the box so I'm confident that we can come up with something. This ended up being a bit longer than expected and if you've read this far, thank you. I wasn't sure about what section to post this in, square peg is the one I chose out of 5 so if this is wrong please feel free to move it to the correct section. Help and advice will be very much appreciated. Kindest Regards

Posted by ragun8 5 years ago

Movie Error

I was watching the first part of Generation Kill, its about a group of marines during OIF 1, and I was getting all into it and I noticed an error, a Major error. Well just look at the picture. Normally for a vehicle to go, the engine has to be RUNNING. Tactical vehicles have switches to start them. You have off, run, and start. He has the engine off, but yet the vehicle is making noise and its going down the road. Now i know the vehicle is being pulled by a trailer, and the engine is "off" because if it was "on" it would be a crap load louder and everyone would have to scream at each other just to talk, but come on guys at least rig the knob so that it points up right when driving. What movie errors have you noticed that made you upset?

Posted by thematthatter 9 years ago


I have an rss feed from -ible to my reader. I've noticed that there are lots of -ibles that seem like thinly veiled ads.  They talk about a secific 'brand' to solve a problem which I think makes the whole point of the site useless. Is this just because the website can't screen it, is within the guidelines or is a revenue stream for the site. I'm fine with anything, just as long as I can expect as such.

Posted by fefrie 6 years ago

change ipod shuffle (2nd gen) colour

I won a 2nd gen iPod Shuffle from an arcade game at the local movie theatre and I got a purple one. Since I'm so insecure with my sexuality (and I just plain don't like the colour) I'm wondering if there is a way to strip the paint (if it actually is paint) from it. I've looked into other options like the silicon and aluminum shuffle cases but they are kinda bulky.

Posted by atomicrabbit 10 years ago

5th Generation Ipod repairs

Ok guys I wasn't quite sure whether to post this in the general forums or right here. I figured I would get more help here so here goes. My good friend washed her Ipod video 5th generation so she didn't want it and gave it to me.The only problem that is visible on this Ipod is a broken screen. But the problem that I'm concerned with is not the screen but the hard drive because I don't know if it's still functioning or not. Whenever I plug in the usb transfer cable, and hold the ipod up to my ear I can hear a tiny squeaking sound as if the hard drive is still spinning. I don't really know where to go from here guys so if anyone could offer advice on what to do next to figure out if the hard drive still works or not it would be greatly appreciated. Thanks

Posted by hacker-mattg 10 years ago

Hydroelectric Generator

This is my first topic, so I need your opinion - is this possible? I have all of these items.

Posted by AdvanŽ 1 year ago

kinetic micro generator

How to make a kinetic micro generator?? or is it available in the market?

Posted by abhotix 7 years ago

RF Generators

Just wanted to know if Function Generators were the same as RF Generators? I'm looking for a cheap RF for a project and when I put in "RF Generator" in eBay, it comes up with Function, Signal, and Linear Generators as well. Thanks.

Posted by FrenchCrawler 11 years ago

general discussion

This is for whatever you guys wanna talk about.

Posted by XI3 10 years ago

downspout generator


Posted by bravoechonovember1 3 years ago

Star Wars - General Grievous

General Grievous from Star Wars-Revenge of the Sith :)  

Posted by Harakir 6 years ago

Box Fan Wind Generator

Is it possible to make a home wind generator from a box fan?

Posted by elkaddalek 3 years ago

Biblical curse generator

It generates Biblical curses!Here(direct link to Ship Of fools)

Posted by lemonie 9 years ago

ElectroMagnetic Pulse Generator

Does anyone know how to make an electromagnetic pulse generator and im not talking about an EMP

Posted by cvm726 10 years ago


I am trying to develpo an instructable for building an OZONE GENERATOR. Any help out there?

Posted by Wheaty 11 years ago

General Ideas

This forum is to discus general ideas for the project

Posted by oscarthompson 9 years ago

General Batch Discussion

The Official Batch Homies Discussion Forum

Posted by Chad Baxter 6 years ago

First marx generator (Sparks!)

I had just built a marx generator! It is my first marx generator I have ever built, and it make amazingly long, loud sparks, I managed to generate sparks up to 2 inches long (5 centimeters), that is about 50Kv (50,000v) coming out if this generator!If you don't know what is a marx generator, look here on Wikipedia.I hope you like the pictures I have just taken! Sorry, no video yet... :(Has anyone of you built a marx generator before? Should I make an instructable how to build a marx generator?(UPDATE)It is done! I made the instructable!

Posted by Plasmana 10 years ago

Electromagnetic pulse generator plans?

Does anybody know where I can find plans for an electromagnetic pulse generator?

Posted by abun1991 11 years ago

High frequency generator

I want to build a VHF (high frequency) powerfull generator for make an unusual form of lightning. It must produce microwaves 10 - 20 mm. length. Please, write here if you have any information about such generator.

Posted by 012345678910 9 years ago


This is a random forum for anyone to ask me about my Instructables, or just chat.

Posted by Tscrid 8 years ago

water diven dc generator

Construct a dc generator using a water pump driven by a garden hose.

Posted by alaskagene 10 years ago

general K'NEX.

Talk about anything K'NEX.

Posted by NYPA 9 years ago

Electromagnetic field generator

An electromagnetic field generator strong enough that can disturb the tv signal of your neighbour next door

Posted by SalemSnaKe 8 years ago

Stereo Amplifiers, Will they power HHO Generators and control Heat?

Will audio amplifiers work to power HHO Generators on vehicles to control over heating of the cell? If so what other parts would be necessary?

Posted by Pylgram 10 years ago

bicycle generator

Has anyone ever tried to build a generator that would fit inside the bottom bracket of a bicycle using the spindle thats attached to the cranks and pedals? seems it would work better than the ones that rub on the tires.

Posted by oldcrowrich 10 years ago

can i convert a corded drill into an AC generator?

Wondering if i can use the same steps as this to make an AC generator:

Posted by ngsean 10 years ago

Using a Treadmill motor for a generator?

I've been looking into building a VAWT, and I was wondering if an unmodified treadmill motor could be used as the generator, and if so, what could I expect to get out of it? thanks:D

Posted by jakem456 8 years ago

Wind Generator

Hello Guys, I am working on a small project that involves wind energy, I am basically looking for a generator, preferably DC and as small as possible, my goal is to generate at least 17V and between 1.5 and 2A.  Does anyone know where I can find something like this? Thank you Alejandro Moncada

Posted by AlejandroM5 3 years ago

building a treadle generator?

I was wondering if anyone knew how to build a treadle-powered generator, either from scratch or using an old treadle sewing machine as a base. If so, you're help would be much appreciated

Posted by a.nony.mouse 7 years ago

Help generate interest and contributions to the instructables

You can generate interest and contributions to the instructables by helping to expand the Wikipedia article about it: Wikipedia instructibles article

Posted by watermelon 11 years ago

DTMF Generator with Arduino

Hello mate, I have telephone with only receiver and no keypad. So, i need to generate DTMF tones to dial the number. Is it possible for me to generate a DTMF tone generator by programming arduino with the frequencies and attaching speaker to it? Also, how can i club two tones which are required to be sent at a single moment? Thank You. 

Posted by anuragkanase 7 years ago

Random Instructable Generator

I'd love to see a feature added on that sent you to a random instructable that might've otherwise been overlooked.

Posted by L3fty 7 years ago

Active Sound Generator

Guys, does anybody know how to make an "Active Sound Generator"? It produces an amplified engine sound and the car sounds louder. In retail it costs about 2000€ that's why I would like to built my own Active Sound Generator. Any car fans who can help me out?

Posted by KolerR 3 years ago

Ask : can i turn a motor from a fan to a generator ?

I have a motor taken from a fan ( picture ) i want turn it into a generator. Can i do that ? My teacher said that the motor taken from a fan could not be turned into a generator. And if it is possible, how to do that ? thank you a lot

Posted by Phờ roenP 3 years ago

Make a Generator

Alright so here is what I am looking for. I need a small generator that could fit inside of a box-fan. I've seen things about stepper motors and all but I need the absolute most simple generator you can come up with. I'm no electrician and I don't own a soldering iron, can anyone help?

Posted by reedz 10 years ago

Having problems on building A bike generator

First, I have problem on choosing suitable generator. my choices are washing machine motor , alternator or water pump (1hp) what should i use ?! second, how can i calculated the power i will take from the generator theoretically. third, i had read that if i put a high gear ratio the motor will be destroyed because it can't hold it so how can i fit it with maximum allowable ?

Posted by loradwan 11 months ago

PDF Generation - New Step, New page

It would be nice if each new step of an 'able started a new page in the generated document. See attached screenshot for example.

Posted by jimbotheconflictor 6 years ago

Solar-driven Stirling engines for electricity generation

The "Picture of the Day" in today's New Scientist shows a solar power generation test using Stirling engines as the generators.

Posted by kelseymh 9 years ago

Bugged PDF generating


Posted by padovan 2 years ago

Help with Batch file...generic code?

I noticed that there is a generic code like %windir% for all computers that takes command prompt all the way to the main drive regardless of what it question is, is there a generic code for users? I want one that will go to the Documents and Settings of the person currently logged onto the computer.

Posted by Serneum 11 years ago

Hydrogen Generators

Does anyone know how to test for output quantity of HHO gas from a Hydrogen Generator when connected to a vacuum such as your intake manifold? The output is easy to test when just checking with a submerged bottle with the generator running on its own without being hooked to a vacuum source. The generator will put out substantially more volume under vacuum than when not. How do you check for output volume when under vacuum? Pylgram

Posted by Pylgram 10 years ago

Another spamming account, this one generating comments


Posted by kelseymh 9 years ago

retrofit electric generators

Hello, my name is G. Keith I'm looking for a few bright individuals to start a company that will build and outfit over the road trucks with generators to create an alternative source of electric power. Please submit your inquiries and questions to the post or email me here. Thank you G. Keith aka (knowledgeCkur)

Posted by knowledgeckur 10 years ago

Bike generator

Any ideas on how to make a electricity from old bike to help cut down on electric bill similiar to a solar panel? I know this has been done before. Email me at

Posted by swolenoggin 9 years ago