Make my own turbine or....?

I'm going to be building a charging station for my laptop, cellphone, ipods. I got the idea from the S.P.R.E.E. article but I want to incorporate a wind turbine into the system. I'm struggling to find a turbine that's small enough, or even a permanent magnet DC motor. Am I missing something or would I have to make my own DC generator? Thanks in advance!

Posted by egoods 9 years ago

Tesla Turbine Bike

I was curious if anyone has created an air compressed tesla turbine bike. Using a 4500 , maybe even 2 4500 carbon fiber tanks. Something along the lines of this instructable Just curious if anyone has tried this, sort of thing and if it was plausible, and how long the tanks would last or if there was some other design such as directly hooking up to the gears.

Posted by thatsgreat2345 9 years ago

Building a Wind Turbine for the first time

     I'm building a wind turbine for the first time and I want to share my progress and chat with people that have done the same type  of thing.       I'm a member of many different forums online and I value the information I pick up from them a great deal.  (OK here comes the question) I've been looking for an online community of people that share this interest (residential wind power) but I'm not finding any large groups,  or a central hub of knowledge. My question is ,  Does any one know of a large high traffic wind turbine forum ? My Googlefu seems to be weak in this area :(

Posted by 00MrNotWrong00 8 years ago

tesla tubine to power variable firing rate minigun

The tesla CD turbine instructable if that could be made inside a steel cylinder and with sheet steel discs in place of the CDs could it not be used (with high pressure air) to coax a hyper rate of fire from a minigun maybe using a gas cylinder from a paintball gun (thickened to with stand about 300 psi) 

Posted by Nicholai 8 years ago

Wind turbine questions.

I am asking these questions on behalf of another member who has English as a second language. He is building a vertical axis wind turbine (savonius style, I think).  The mechanicals don't worry him, it's the generator and the windings. He wants to arrange six coils and six magnets.  The magnets are going to rotate with the turbine.  He has made the coils himself - each is wound clockwise, with 100 turns of wire. He assumes (and I agree) that the magnets should be separated by 60° of the circle, alternating which pole faces the coils (S-N-S-N-S-N) and the coils should also be separated by 60°. He would like to produce 12V DC, to be fed into a battery. What is the best, or most appropriate way to connect everything to achieve his goal? Links to sites that he can examine (and/or translate) at leisure would be nice.  Or sites in Turkish. (I suspect that Picoturbine documentation would help, but it's in long English.  Still, I've added it to the topic in case it is of help.)

Posted by Kiteman 8 years ago

variable output dc water pump for a wind generator

I'm interested in figuring out how to direct the energy produced by a wind turbine into a water pump. My goal is to pump water from a river to the top of a hill into a pond. then slowly release it through a variable water turbine so that the pond serves as a battery. i've seen pumps that work with the power take off(PTO) of a tractor that could be retrofitted if i had the right dc motor. i need to figure out what motor might work and what type of contolling i would need. also would it be better to use several smaller units that engage one at a time as the power input increases to keep the pumps closer to thier ideal operating range? The (PTO)water pump i saw operates between 17-23 hp or 20kw or less, which is perfect because the turbine is 20kw. the other thing is what if the pump operation starts at 17hp(?) then most of the power would need to be directed somewhere when producing less. maybe a series of different sized pumps and a controller to determine which pump(s) to engage to get the most water pumped.

Posted by steve34 10 years ago

Using a fan to drive another fan

Hi all, This may very well be a stupid question but after a quick bit of searching I cannot find an answer (which probably means it is stupid). I have been thinking about setting up a wind turbine to generate some electricity for my home. It occurred to my that it would be good if the wind turbine did not rely solely on the wind from outside so I started thinking about using another fan to blow air into the fan or fan used to create the electricity. Does anyone know if this is possible? I guess what would be ideal is if fan A was powered by the electricity produced by fan B but fan B also produced a little extra electricity that I could syphon off. This could then easily scale up to produce more power. [ fan A ] ~~~~~> [ fan B ] ~~~~~> electricity I suppose if fan A takes more energy to run than fan B can create then it won't work. Has anyone looked into this?

Posted by _chris 3 years ago

Wind Turbines

Im designing a wind turbine and all i've come up with is a PVC tee with some pipe on each end. HELP PLZ!!!

Posted by ry25920 10 years ago

A cheap gas turbine jet engine.

Where can I find a cheap priced rc or small gas turbine jet engine?

Posted by koolsk8ter111 10 years ago

Would a Tesla Turbine work in a solar updraft tower?

I was playing around with making a small scale solar updraft tower and I was curious if I could use a tesla turbine instead of a turbine with blades. Would the Chimney effect be enough to drive a tesla turbine?

Posted by thecoonskin 6 years ago

wind turbine speed?

i have herd that the minimum amount of wind required to power a (homemade) wind turbine is 10 m.p.h. is that true? and whats the maximum wind speed?

Posted by Sun Gear 7 years ago

diagram/information for wind turbine

Can any one point me in the right direction please. i'm building a mini wind turbine but i'm not sure what do do with the electronics side of things. for example: 1, how to charge a battery - (when i connect the battery it powers the motor! i dont want this,) 2, how to prevent over charging thanks zac

Posted by bede123 4 years ago

Magnet strength for DIY VAWT

Hi, does anyone know if it is better to get stronger magnets for a DIY turbine? Is it always better, or only to a certain degree?

Posted by elmejor06 8 years ago


Pls help me!!!!

Posted by parthsoni78 5 years ago

wind turbine- I need wiring help

Hey guys,  I decided to make a vertical wind turbine out of materials I had laying around in the garage/shed.  I found everything I need; old bike, pvc/dryer exhaust pipe, old dryer motor.   I wanna make something along this concept.... the wind turbine would be chain driven from the sockets on the bike wheel.  I have the whole concept of the turbine drawn out and ready to go.  But when it comes to the wiring on the motor im stumped.  If someone could help me, that would be awesome! I found two motors, here are the links to them.

Posted by aminnich 2 years ago


I searched the engine for turbines and ventilators, cos in summer it's kinda hot here. And today my room-mate used a tool-box to keep the kitchen's door open, so that we possibly get sum air/wind coming through the kitchen's window and the corridor to cool the rooms of each one of us, but i guess i need an idea of a ventilator. Say, not a usual one like my ceiling ventilator that hardly compensates my comps' heat, but a kinda turbine that i can build and hook onto our kitchen's window. If i had more of them, i probably could stream the wind systematically through all rooms. (what i think about is a litle bit like water-pumps); air in these times is not moving, but you need air's movement to cool, so i have to get the air moving and a "kit" that you can build, eventually amplify to get a "bigger one" of the ventilators (for the main stream from the kitchen). I wanna stream my flat with air ! My room.mate went in a min ago and he said, i should try it in my room - sure, but i got my ceiling ventilator and that one sucks the air from abnove to push it downwards, but i keeps stayin the same air, cos it dun move it from outside the house to inside and out again. Umm, sry, i've drunk a lil bit and it was really a weird day today, so sorry, if it sounds weird. I just wanna get rid of the heat in here and wanna do my part as crafter against the condition as it is. So, if you got any idea, would be great...

Posted by Luziviech 7 years ago

Combustion Chamber for high voltage spark

Based on Sir9's project I am preparing to make my own version: The plan is to create a Tesla Turbine powered by steam which is made on the plasma spark from a Tesla Coil - Presumably if Sir9 used just 110 V, the really high voltage of the Tesla Coil should give me Big effects I am not sure about what size, shape and material I should use for the combustion chamber, and whether I can use multiple spark plugs safely. I'm planning to use a small 220v // 2,1kV microwave oven transormer for the coil just to keep things farely safe for the beginning and a turbine made of hard disk drives (about 16 plates) sealed in a plexi-glass chamber I have a lot more questions coming up every minute, need any help I can get - this is my first project of it's kind Thnx

Posted by skyw4lker 8 years ago

Check out this Awesome Ship Propulsion System

Http:// see it in action -- click "Open iVSP - Interactive VSP Program" on the bottom half of the page.Just wondering if anyone got as excited as I did... or at least just as amazed as I was :p

Posted by trebuchet03 11 years ago

A different kind of Turbine

Check out this new design for a wind turbine.

Posted by Yeasayer 9 years ago

How do you make a fake turbine drill out of a plastic siren whistle?

Dose anyone know how to make a turbine drill out of a plastic siren whistle? Manly I want to make a fake dentist drill with a plastic drill bit attached to the whistle turbine.

Posted by elkaddalek 3 years ago

Tesla turbines as viable generators?

Anyone have any thoughts about Tesla turbines, potentially as something steam based to plug into an alternator? The internet seems to be of the opinion that they're either fantastic or crap. I'm thinking of this as an easier and cheaper option than a steam piston or Stirling system for my solar energy thing.

Posted by SolarFlower_org 9 years ago

ceiling fan wind turbine

I am in the middle of building a ceiling fan generator/wind turbine.  I know that the electric current produced is AC (I think it's 3 has 3 wires coming out of the fan). I do not know electricity that well, and am learning as I go... I would like to use the wind turbine to drive a small garden water fountain pump that is 120 volts.  What do I need electrically to complete building this wind turbine? Does anybody have any suggestions on resources on how to connect such a device electrically?  (Do i need a diode, rectifier, ???)  Does the voltage produced by spinning the generator have to equal the volts required by the device ( small water pump)?  Thank you for any and all help as I'm trying to learn and hopefully complete this wind turbine by summer.

Posted by Jesusistheway 3 years ago

Can I use a electric scooter motor for a wind turbine generator?

I'm asking this as that I have 15-20 electric scooters with several different motors in them. I would love to be able to take one the 200-300 watt VDC motors and use it in a wind turbine. thanks.

Posted by jeepinjoe5150 7 years ago

Home Water turbine power plant... Mini HELP!!

Hey all! Just thought I would try and save myself some time, by inquiring with you fine folk first.. I am attempting to build a mini turbine system to generate power from a home standard incoming water supply... The PSI is easily high enough to run a mini power gerenating system without a significan/noticable drop in water pressure of the home.. So anyway, this is the prototype that I just knocked up to give you the jist of it.. Any comments on improving the design would be appreciated.. eg.. flow, restrictions etc. The turbines will drive a belt connected to a dynamo... Thanks for your time.... LftnDbt

Posted by Lftndbt 10 years ago

Wind turbine placement?

I live in a rural area and we have two blue Harvestor grain silos. One has a 25 foot diameter and is 90 feet tall and the other is 4 feet from it with a 20 foot diameter and is 70 feet tall. I was wondering if it would be possible to mount a wind turbine on top of the taller one. I don't know much about turbulence though, if there would be too much? Or how high it would have to be off to clear the turbulence? This is my first try at it, I was going to try a treadmill motor, something small

Posted by technic6490 6 years ago

Axial Flux Wind Turbine

24 pole, 3 phase alternator. 18 coils of #20 wire 80 turns each, 6 coils in each phase connected in series, then wired 3 phases in star config. Put out lethal voltages at a very low rpm. Using N45 2" x 1" x 1/2" Neo Mags, two discs of 24 each attracting each other through coils. I need to know what the number of turns would be for #13 wire, same configuration for charging batteries.

Posted by dna11207 9 years ago

Jet engine turbines - how they work?

Hi, I know how jet engines work except for one aspect and for the purpose of this question I'll use for the discussion so we're all picturing the same thing and because the illustration shows the engine quite simply. By looking at the picture, I understand that turbojet can't start itself, it needs 'spinning up' before it is ignited at which point it should sustain itself spinning and then provide thrust. I understand that because the turbine is spinning, the compressors at the front compress air into the combustion chamber, where fuel is injected and then ignited causing expansion, driving the rear turbines to drive the front compressor, and also providing thrust. What I don't understand is why the expansion in the combustion chamber isn't equally providing thrust in both forward and backward directions, and why it isn't acting on the compressors and causing them to be turbines just like at the rear of the engine.  What directs the expansion towards the back of the engine? and what stops half (or at least a large fraction) of it pushing back towards the front of the engine? I know rockets have an expansion but it's usually a tube with one end closed so all of the expansion is forced out of one end, but both ends are open on a jet engine? The question arose when I was looking at tin can turbines;=related and I was thinking how I would build a small one myself but I couldn't visualise why the combustion isn't pressing against both the front and rear propeller cancelling any rotation out, and providing equal thrust in both directions? Thanks for your time!

Posted by arichardson 6 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 7 years ago

Can I use this motor for diy wind turbine project ?

Hello, I have this motor: SHINAKO TOKKI X7807-201V Single Phase Motor 230V same like this: I am interested can I use for Wind Turbine ? Thank you

Posted by Chief.Wolfinjo 11 months ago

Tiny Wind Turbines that Could Power a Home

Everybody wants to have a cleaner Earth, but few of them take any actions. One of those people is Doug Selsam, who designed high-power wind turbines that can generate enough energy to power a home. The wind turbines measure about 14-18 inches in diameter and they can generate an impressive amount of 200 watts for a 20 mph wind, but the wind turbines could do better if the winds are stronger.Selsam's wind turbines are made of high-strength carbon fiber materials which give the turbines the possibility to be hooked as one. This system is very simple and it weighs a bit, as you see, it can be held in one hand. For the moment, there is no word about release date or availability, therefore I can only say that it's an interesting conceptOriginal Link (via Device Daily)

Posted by Keith-Kid 10 years ago

Parallelized Wind Power

This started as a blog post on Make was suggested to head over to instructables and get some stuff going here and it seemed a good idea. Also, in the meantime I found (of course) a bunch of cool wind projects here (about 20). I really like the vertical Savonius turbines. I wonder if those could be stacked with a similar effect?I've been wanting to do a wind power project for a while, and it seems like a good one to work on with others. Here's a brainstorm to kick things off. Please add to it or suggest alternatives problems etc.- total parts cost < $200- leverage off the shelf parts as much as possible. - little or no machining.- over 100 watts, (ideally 300-500) (this could be totally unrealistic with a $200 price, not sure yet)- usable in small yards, urban roof topsThe guys who made the original did some research for a grant and the paper is available here: Hopefully this is enough to kick off some discussion and gather up interested parties. I think the first step will be to tack down goals and solidify a general approach. Ideally in the end, we can come up with a good parts list from a minimal number of sources, and an instruction set that's relatively easy. A group might also leverage some purchase power by getting some of these parts in bulk (ie. a whole bunch of airplane props). Tim

Posted by timothy 10 years ago

LED light from wind turbine

We are playing around with various basic LED lighting from a small wind turbine and have a couple different ideas about how to build.  But we are wondering what the voltage range LED lighting can handle?  Even a small turbine can create a wide range of wattage based on the speed of the wind, at what point are we going to be doing damage to our lighting?  Do we need to come up with some sort of wattage dampener/regulator between the generator and the lights?  Simplicity is key in our design.

Posted by Two Paddles Design 3 years ago

Low-Footprint Lamp, DIY Wind Turbine, Energy Usage Meter

  Low-Footprint Lamp DIY Wind Turbine Energy Usage Monitor Build a Solar Tracker Stationary Bike Power Garden Rain Barrels DIY Solar Panel Recycled Window Greenhouse Pringles Wind Turbine Bike Wheel Generator Home Solar Panels Homemade Sun Jar Water Flow Sensor Solar Thermal Collector Energy Saving Tools  

Posted by randofo 8 years ago

Solar Panel Sun Tracker, Kite Boat, Homemade Wind Turbine

Solar Panel Sun Tracker Kite Boat Homemade Wind Turbine Solar Lawn Mower Breath-Powered USB Charger The California Cooler   DIY Solar Setup Solar Thermal Water Heater Truly Insulate Your Home 440 Watt Bicycle Generator Vertical Wind Turbine USB Bike Charger Solar Heater Algae Bioreactor Air Duct Turbine  

Posted by randofo 7 years ago

turbines and free energy

I seriously need to know this question is it just more or does anyone else realize that you can get pure free energy using simple turbines and 2 other sources of energy in sequence if anyone can answer it ill say if they are right or wrong and if no one says the right answer ill just say it loud and clear so people can start saving the bundles of money that the power companies like to drain from us

Posted by maskofdarkness22 5 years ago

Verticle Axis Wind Turbine Materials?

I've been working on a vertical axis wind turbine that uses uses 3 identical helical blades positioned around a central vertical axis. For small working models I've been using 16 gauge wire and cardstock. I'm looking to build one with 6-8 foot blades. The trouble is finding an ideal material for this. It needs to be lightweight, cheap, flexible, "malleable" (it needs to be able to be bent into a helix but then retain the shape), and come in a 4'x8' sheet. PVC/CPVC is super expensive, as is polycarbonate, and aluminum. Any suggestions? 

Posted by FLskater3696 5 years ago

How to build a car powered by a savonius/wind turbine

Hello! I have seen an interesting experimental car on German TV. It is a small car, in which a wind driven helix directly trasmits the mechanic energy to the wheels. The car moves, even against wind direction. That car was equipped with a tall helix perpendicular to the main axis. I think that a savonius turbine would be more effective because it can exploit winds coming from every direction. Does anybody have any ideas or plans to realize a similar car?

Posted by isacco 9 years ago

How can I generate electricity from a spinning wheel?

How can I turn the spinning of a small wheel/gear into electricity and then subsequently charge a battery with it??

Posted by SiliconSoul 6 years ago

Looking for a Step by Step DIY Instruction with images to make a Wind Power Small Turbine

I am searching the internet to find DIY plan to create a Wind power small size 3 blades turbine to run my computer.I found the and some videos but all the videos are incomplete or simply lack vital information.I am a novice.Please help me to build my very first (3 blades) and small wind turbine. I need help from this forum.Please share DIY plans or step by step instructions to build a wind power turbine.Why I need Wind turbine?To generate electricity to run my UPS and 15" Monitor.I want to generate my own electricity but I need guidance.So far I have found that 3 blades wind turbine works best as compared to 4 and 6 blades.Hope some one may help.Regards,DAVE -

Posted by davidjohny 10 years ago

Turbine generator with heat pump

I got another weird idea that I like to share as I don't see me putting into reality anytime soon but someone else might do it for me after reading it ;) If you like me and call home where it is far too hot for most of the year you might have wondered how to cut the energy bills down. Especially if you in a remote area "off the grid". Sounds interesting? Then just do me the favour of posting here if you plan to put into reality and keep us updated ;) Technology has come long way and with some mirror like Mylar foil anyone can build big reflectors to use the sun for heating all sorts of things. Modern solar hot water systems are designed to produce a temp high enough to kill all harmfull stuff that might otherwise grow in our system but we can one step further: (Keep in mind it is just an idea with no prototype to proofe the concept works as expected!) Using heat pipes in a round reflector that is linked to solar tracker would allow us to boil water for as long as the sun is out there. Don't know if the flat types used for hot water systems are capable of producing steam but someone might have an old one at hand and is willing to test it on a sunny day? Anyway, assuming we can build a large enough array of solar ovens heating water pipes it is possible to drive a turbine with the steam. A linked generator of suitable size would now provide the electricity we might need to charge batteries or to power other things. But of course this would be total waste of the remaining energy in the steam! Plus we could really need some airconditioner, don't we? So in my vision we don't want to waste the water either, which mean we not only use the heat but also reuse the water to go back into the solar oven. If we now use an uscaled version of our RV fridge and instead of a heating element or a flame our remaining heat from the steam we can power a big fridge and an airconditioner on the same continous-cycle-ammonia-fridge type to cool what we need. Depending on the size and insulation rating of a house it is possible to be totally independent from the power grid during the sunny times. During the winter times the same generator can be combined with a ducted heating system where the waste heat of it is used to produce the steam we need. Of course integrating this into one unit would be the prefered option to keep the physical dimensions small. Combine all this with some good sized battery backup and inverter system and you might have enough juice to spare to make it through a cloudy day or two. Add some wind generators if you are in a suitable area to provide additional electricty. I think with new parts and some handy work it should be possible to create such a system for under $3000US. With access to some well sorted scrap yards even for free, not counting consumables, selants and so on... Sadly I don't own a house and currently not even have a garage to set up a little workshop so for now it stays an idea only... Tried to find some sponsors or at least people with interest to create something like this down here but it is like trying to explain quantum physics to a hundred year old in the retirement village. Sure, you can build something that would give me electricity and cooling for free? ... Of course it will work, so come back and show me once you made it.... If that crap could work, why are still buying fridges that run on electricty and airconditioners that drain our bank accounts?... We have 5 cooling containers outside runningon generators that use over 200liters of fuel every day and come try to tell me a steam generator can cut me fuel bills down by at least 50% if not more?... Just some of the more friendlier responses I got after trying to find some interest. Don't know if it is problem of the Aussie mentality or if I am just unable to make someone understand that we can use the scorching sun for free :( But I am not willing to give up on the idea itself, so what do you think? Oh! You have the financial means and access to create some prototype to integrate into a new cool house or  self sustaining home? Please feel free to contact me so we can start and make a living out of it ;)

Posted by Downunder35m 1 year ago

Jetpack-HELP - Gas turbine backpack-Make/Build???

Hi guys busy with an EXPO school project  I'm trying to make a Williams gas turbine backpack but only find dead ends on the net Can someone PLEASE share some info on how to make or build ASAP  Flight time doesn't have to be more than 8-10 seconds but if possible that'll be great !! And lift doesn't heave to be more than 15-20 cm off the ground . Any help is greatly appreciated  THANKS  -IronMan-

Posted by -IronMan- 4 years ago

Wiring Multiple Turbines and PVs

Just a little worried... how do ya'll go about wiring multiple power sources together? I have been long under the assumption that your solar array will only put out power of the weakest panel. If I come across 3 different 12v panels, that have differing amperages, and have a wind turbine on a 12v car alternator, that ranges in power output, how can I wire these to make these most effective? Is there a charge controller out there that can manage multiple power sources? Pardon me if this is stupid. I just cant seem to get off the ground with these simple questions. i guess the most effective q to ask is: What do you do to wire multiple power devices of different outputs into a single battery bank/ grid tie system? Thanks so much for all yall's brilliant help. -Luke.

Posted by ineclipse 7 years ago

do i have the right DC motor for a wind turbine?

Hi, ive been using this site for years, first time im posting and its because i think ive bitten off abit more than i can chew but i love projects :) anyway, i have a dc motor i have taken out from an treadmill plugged it into a multimeter n gave it a twist got few volts, all good. what next? i cannot find what i need by looking at the label, it has 2 different horsepowers and also has 4 wires coming out so i dont know what phase it is either it doesnt say RPM and also has 2 different watts (pic included) i understand one is for continious use is that the one i should refer to? :( can someone just prod me in the right direction please? also it has a kind of fan which also spins on the opposite side should i take this off or keep it? and can i use any parts from the rest of the treadmill to help make a charge controller? i was planning on buying 3 aluminium blades around 30" each and wanted more than 2 batteries in my bay, im ordering a slip ring, blocking diode  and dont know what charge controller im going with yet... i have done alot of reading some things just dont seem to specific to me or maybe im just asking dumb obvious questions! any help appreciated

Posted by sharkyali 4 years ago

Halloween Contest Entries on YouTube Group 2

You can enter your youtube videos in the DIY Halloween Contest. Just add them to the DIY Halloween Contest Group. This is group 2 of the videos that we have received so far. I'll add more groups as necessary, so submit your video now!The Making of the Tesla CD Turbine Prototype Tesla CD Turbine with Skilsaw Attachment Running the Tesla CD Turbine With PumpkinCutter Attachment

Posted by noahw 10 years ago

Apartment Wind Turbine ideas

Hey all. I would like to gather opinions on 2 small wind turbines I'm thinking of constructing. Difficulty: I live in a third floor apartment (it's also the top floor). My first idea was to modify an old box fan and mount it outside my window. Then I walked into my bathroom, which has a noisy exhaust fan in it. I accidentally turned it on and realized that I could build a collapsable darrieus turbine that would fit up the exhaust vent, expand when outside, and hook that up to the exhaust fan motor already in the vent. Does this sound feasable? My goal is to see if I could charge a cell phone from the power generated by one of these two options. apologies for the quick-n-dirty sketch below.

Posted by Greenline 11 years ago

How to test the power output on a wind turbine?

I'm on a team prototyping a water filtration system powered by a Savonius wind turbine; the energy from the spinning turbine is mechanically transferred to a reverse osmosis filter/pump setup. We're doing tests of various blade configurations and are trying to determine the power output by hooking up a small DC motor (1-3V, 5000+ RPM) to the shaft. We're seeing only mW outputs though and were expecting something significantly larger. How do we pick a motor for the job? Do we need to match the RPMs of the motor to the expected RPMs of the shaft (~150)? Any other ideas for testing power? Thanks for any help!

Posted by moisture 9 years ago

Wind-powered phone-charger

Here's one for the tower-block dwellers - a wind turbine you stick to your window. On the inside, you stick the matching base-station, and the set uses electromagnetic induction to transfer energy from the spinning turbine to the phone in the charger's cradle. It's a neat idea, but I don't know if it's a real product - I tried tracing the links back, and ended up going round in circles in the blogosphere. What I am sure of, though, is that somebody reading this has got the skills and motivation to build their own version.  You don't need to use the same design of turbine blades, and it's up to you how it sticks to the window (suckers?  magnets through the glass?), but I bet you can do it. Just remember to post an Instructable. Traced back to Yanko Design.  Originally seen on NOTCOT.

Posted by Kiteman 7 years ago

Challenge: Can You Beat This Scary Turbine PumpkinCutter Halloween Project ?

This Halloween project is so scary that the inventor (myself) felt shock and awe at it. I was genuinely scared at the running of this machine...and rightly so! So I figured I would spread the scariness to all who see this machine, to set the mood for a DIY Halloween... The machine in question is what I have named the Tesla CD Turbine. The CD Turbine is magnetically-coupled to a Skilsaw blade. (What I teasingly call the PumpkinCutter Attachment). The Tesla CD Turbine uses recycled CD's and neodymium magnets for rotating parts...nothing else. It can rev up to thousands of rpm. It has no bearings or seals and is magnetically coupled to implements. It runs on either compressed air or water pressure. But hey, put on a magnetically-coupled Skilsaw blade, run it at thousands of rpm, and you have a very dangerous PumpkinCutter! (Instructable is ready...if you dare!) Beat that for a wild, scary, hi-tech, cheap and recycled Halloween project!!

Posted by mrfixitrick 10 years 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 9 years ago