Human Powered Bike Powered Generator?

HI, I am an artist and I am creating a bike powered led sculpture for kids at a museum. I need some help making the connections correctly and finding the correct electric motor and volts not to over load the LED light bulbs as well as how to figure out the easiest gear ratio for kids to turn, There will be five 60 Watt  /120 Volt LED bulbs connected to deep cycle car battery (used as a voltage regulator) that will be connected to a stationary bike pedaled by visitors to display the human energy potential. I want to figure out what type of electric motor I will need for those lights and how to make the gear ratio for the bike easy enough to turn for kids... Any knowledge on these calculations will help. Thank you ! Jessie

Question by real_jessie   |  last reply


Amazing Human-Powered Vehicles

Hey everyone, I'm part of a team building a bike for to break the human-powered land speed record of 83 mph!  Check out our kickstarter page at http://kck.st/1o5DowU, or our website/blog www.aerovelo, for updates on the design/construction/testing process. We've worked on a few other crazy human-powered projects including a helicopter and an ornithopter. Check it out! :)

Topic by aerovelo 


Flugtag -- human powered flight?

Have you seen the videos for Flugtag? It looks like a great excuse to build something fun and jump in the water, and maybe fly a few feet too.Most of them look like this: And here's the US record holder, at a whopping 155 feet: I bet we could do better than that, especially with a drop. ;) Anyone have a proposal for Team Instructables? They hold these things around the world, so it's not just US. I bet we could pick up on style points as well.From the official page:The first Red Bull Flugtag took place in Vienna, Austria, in 1991. Since then, more than 35 Flugtags have been held around the world -- from Ireland to San Francisco -- attracting up to 300,000 spectators. The record for the farthest flight-to-date currently stands at 195 feet set in 2000 at Flugtag Austria. The U.S. record stands at 155 feet set in Nashville, TN in 2007.Teams are judged on three criteria: distance, creativity and showmanship. What constitutes a craft is purely up to the imagination of the participating teams. Past Red Bull Flugtag entries have included a pregnant cow, a diaper-delivering stork, a pimped-out Cadillac, a giant Oompa Loompa, and yes folks -- a lobster named Larry.

Topic by canida   |  last reply


Potenco's Human Power Generator at MOMA

A friend snapped this picture of the OLPC with Squid Labs spin-out Potenco's generator at the MOMA. It's always sweet to see your work professionally displayed in a museum! via Perlick

Topic by ewilhelm   |  last reply


how to acquire materials for a gokart/human powered vehicle???

Ok so i once again have a crazy yet bound to work sceme the only problem is i do not have the resources or raw materials basically what i need are a couple good condition yet unwanted bikes naturally i turn to my local thrift stores but oh bummer my pickup truck is out for good (the engine is literally out of the vehicle) so basically i am unable to transport the bikes to my home and since everyone else in my family drives tiny economic cars i am really stuck i could  techinally ask one of my neighbors but that would be akward (i am between 12 and 16 years old) i really need help with this one guys (and girls) any ideas are most appreciated thank you, fidgety2

Topic by fidgety2   |  last reply


Witnessing Human Flight

First posted here. Last Friday, I drove up to Maryland to see UMD's Gamera II human-powered quadrotor. They are currently pursuing the Sikorsky Prize, established in 1980. Here's the team testing a new control system. http://youtu.be/3B2of4V35d0 (sorry, the embed function isn't working)   During this test, Gamera II flew for approximately 65 seconds, unofficially tying the endurance record that the team previously set. This flight time, plus the ability to remain within a specific boundary, satisfies two requirements of the Sikorsky Prize. Because the rotors are so close to the ground, the helicopter is benefiting from a cushioning effect of the air between the rotor blades and the ground. This effect will diminish exponentially when the team attempts sustained flight at the required 3 meters. The helicopter transfers the pilot's pedal power by unspooling cable from pulleys, mounted on the shafts of each of the four rotors. Flight time is limited by the pilot's stamina and the amount of cable stored in each pulley. The rotors are constructed of carbon fiber, balsa, and foam, and are covered in a plastic film.  All in all, it was a cool experience. I've never seen so much carbon fiber in my life! I look forward to seeing the team win the Prize.

Topic by JamesRPatrick   |  last reply


Human Electric Hybrid Vehicle

The HE Human Electric Hybrid Vehicle It looks like an interesting concept car. Although, it might be hard to find somebody who wants to pedal it. I really like the solar panels on top, and how on the downhill, it charges a capacitor for energy.This HE Human Electric Hybrid Vehicle concept uses the power of your muscles as well electricity stored in the batteries. It allows smooth and constant velocity both uphill (with the help of the electric motor), as well as downhill (when the wheel acts as a generator and charges the batteries). The vehicle can turn 360 degrees maintaining stability all the time. Additional power is acquired from photovoltaic placed on top of the vehicle as well as during de-acceleration from regenerative braking. Elderly and handicapped people that are unable to provide enough kinetic energy can also charge the batteries directly from the grid.

Topic by Brennn10   |  last reply


How to create wings for human flight?

All of us have seen humans fly in those triangle shaped gliders. How about creating wings that will do the job? Understood that it requires more than wind to propel it so flapping power could be harnessed.  I need designs and the physics(i.e How much area of wing is required to lift what mass of body and etc.) Please suggest solutions ASAP! My e-mail id is bharadwaj.adiraju@gmail.com Thank You :D

Question by bharadwaj.adiraju   |  last reply


Can the human body be used as a battery?

My son and I are working on his science fair project which is to light a light bulb using a piece of copper pipe, a piece of galvanized pipe, and two wires with alligator clips to connect the light bulb.  The theory is that holding the two pipes in ones hands, the  body will create enough current to light the bulb.  We have not had any success yet.  Even wetting our hands had no noticeable affect.  Any ideas?  Is this a plausible theory?

Question by speedway1839   |  last reply


Power genration by Foot steps

The main purpose of this Project is that to design a system that convert the mechanical energy harvested from human motion into electrical energy.This project report contains the complete literature review and implementation of an alternative to electrical power supplied by batteries for portable electronic devices and for computerized and motorized prosthetics. The report presents the idea to generate power harvesting from human motion. Electrical devices have been liberated from the wall socket. Battery powered computers, phones and music devices come along everywhere we go. The limiting factor is electricity. In the end the battery always goes dead. Ironically, when we move around with our portable devices we produce a lot of energy. But a lot of this energy is lost as heat. If that mechanical energy could be converted into electricity, our very mobility could charge our mobile devices. Using the working principal of dynamo, we intend to generate a small power which then can be used to charge the portable devices. We are charging mobile battery for testing purpose.

Topic by engr.zainshah   |  last reply


how do i figure out how much power my biped humanoid robot will need?

Exactly what my title says its going to be about average human weight and it needs to have a high reaction time

Question by Newbie216   |  last reply


Hydrogen-powered plane carries human crew for first time.

The first manned, hydrogen-powered plane has been successfully tested in the skies above Spain, its makers say.The small, propeller-driven craft, developed by aviation giant Boeing, made three short flights at an airfield south of Madrid, the company said.It was powered by hydrogen fuel cells, which produce only heat and water as exhaust products.The tests could pave the way for a new generation of greener aircraft, the company said.Boeing's chief technology officer John Tracy said the flights were "a historical technological success" and "full of promises for a greener future".Small futureThree test flights of the two-seater aircraft took place in February and March at an airfield at Ocana, south of Madrid. The plane was modified to include a hybrid battery and fuel cell system used to power an electric motor coupled to a conventional propeller. Hydrogen-powered planes have been flown before, but never with a human pilot onboard.BBC Story

Topic by Kiteman   |  last reply


how to get light power source to operate robot human size ? Answered

I am working on human like robot but the problem is i need good power source  and light too on the 2 hand there is about 60 motor so do any body know high power source to operate them? 

Question by zordrecon   |  last reply


How to make a powerful sound producing device to make humans weak at that point of time?

I wanted to know whether we could produce a device to make some powerful piercing sounds. like supersonics, something like that. to make humans inactive at that point of time. please give me your suggestions.

Question by prizm00   |  last reply


Open Source Hardware Design Project?

I have designed and built 10 of these Urban Utility Transport scooters. So let's call them UUT's Here is my website which was designed a few years ago. Needs updates. www.slida.orconhosting.net.nz I have tried, with my limited financial resources, to market them but my problem is the high production costs and lack of finances. So I have been thinking about giving the idea away for free as an open source hardware design.  I am planning to start a community of people developing the idea and maintaining the design.  My strengts are design and problem solving. I have improved the original prototypes so now the current design has got not many bugs or flaws.  As I got the idea for my UUT from a design in Finland and they no patent either, the idea can not be patented.  And since I have not benn able to commercialize my idea, I am keen to give it away as an open source design. How to go about it?

Question by pellepeloton   |  last reply


what do you think of human evolution ?

You may thing  this sounds weird or stupid but i think we can evolve  like if your falling of a building if you concentrate and focuse on evolving like fly it will trigger and make you a mutant it just all a trick of the mind you control it doesn't control you.     

Question by the hellphantom   |  last reply


The Neverending Powersource

Energy has to come from somewhere. A motor, when turned, creates electricity from the terminals. When electricity is applied to the terminals, the motor shaft moves. Backwards compatibility, anyone? The sun constantly gives off energy. The suns energy is used to grow food. Continuing on with the theory. So, in this example, energy came come from the sun, which goes into plants. Now, we can make the plants into ethanol, however, the amount of energy burned from ethanol is almost equal to that producing it. BUT, if we do not use the plants to make ethanol, humans can eat it. That, in turn, lets us function and work. Now, do you know what the near neverending powersource is? Do you? Animals. Humans in particular. So, to create electricity, we need some form of generator that creates electricity when work is applied to the generator. Hmm... I know! A bike generator! A human pedaling a bike generator that is connected to a motor creates electricity. Basically, we are more efficiently harnessing the suns rays. Yes, I have accounted for the amount of energy it took to produce the bike, motor, and other unneccessary accessories humans MUST have on that bike. But eventually, We may overcome the amount it was needed to produce those things. So, I will soon be creating an instructable on a bike generator, created from your previous/preexisting bike, that will be very simplistic to create and easy enough a 12 year old could do it. Remember, humans can harness the suns power even more effectively than other sources of green power. (I know this will cause a disruption in the comments, but so far, Nuclear is the cleanest, however the waste is not very good...)

Topic by PKTraceur   |  last reply


what is the extent and speed of damage on human flesh with the most powerful laser available to civilians?

I need a small ( two inches long, 1/2 inch wide ) very powerful laser and i need two know how much it will hurt and how fast. any idea?

Question by daltonjcw   |  last reply


Dutch Robot "Flame" Walks Like a Human

Via PhysorgThis robot uses the same way humans walk, but actually falling forward. "PhD student Daan Hobbelen has demonstrated for the first time that a robot can be both energy-efficient and highly stable. His breakthrough came in inventing a suitable method for measuring the stability of the way people walk for the first time. This is remarkable, as ‘falling forward’ is traditionally viewed as an unstable movement.To watch Flame in action click here (WMV, 5.25MB).Next he built a new robot with which he was able to demonstrate the improved performance: Flame. Flame contains seven motors, an organ of balance and various algorithms which ensure its high level of stability."Robots that can chase us flesh-bags down to power themselves are now one step (pardon the pun) closer. w00t!

Topic by laminterious   |  last reply


Collection of books taken to preserve human knowlege

What books file would you take to preserve most of the knowledge of the human race? You have a 64 GB flash drive and durable, waterproof laptop capable of getting power from an hand crank used to view files. What would you put on it? My list: Wikipedia and wikimedia stuff. 10 GB Bible and Collections of various philosophers   Korean, Eastern philosophy and major literature Native American culture and method information Database of major languages, dictionary, and grammar rules Instructables, selected ones Some major works of literature from project Gutenberg Songs from Beatles, Micheal Jackson, Elvis, Queen, ABBA Selected Movies Scientific Data, and other information vital to rebuilding society, such as designs for factories and computer chips.  Pictures of major works of art That's my list, what's yours?

Topic by starwing123   |  last reply


Concentrated Solar Power Hits Pop Culture in the Best Way

Check out this graphic of concentrated solar collectors on Saul's new skateboard. My first skateboard had a dragon sitting on top of a pile of human skulls. We've come along way, I guess.

Topic by ewilhelm   |  last reply



Bike Powered Dog Treadmill

There are some days which my husky and I are unable to run outside. For those days, I use my exercise bike. But my husky is out of her mind with boredom if she cannot run. While I use my bike, I am wishing that it could power a treadmill for her to run on. I am aware that dog-powered (manual) and electric dog treadmills are available for purchase. I have visited sites that give instructions on how to make a dog-powered treadmill. And I know that a regular treadmill for humans can be used for dogs (with training). But I have a few reasons for leaning towards the idea of a bike-powered dog treadmill: 1) We workout together. Dog-powered treadmills usually require that the dog be constantly motivated to run, whether it be vocal cheering or physical nudges (or both). I do not think I will be able to exercise alongside her if I must stop to do this. 2) I do not want to use more electricity than I have to. We are all trying to save energy for whatever reason. So electric treadmills are a bit much. I am mechanically inclined, but I cannot produce plans of this scale. I am hoping that I do not need to do anything more than soldering or welding. Incorporating manufactured parts would be ideal. Any and all (practical, safe, and realistic) help would be greatly appreciated! Thank you, everyone! P.S. The use of any bike will do for this project. It does not have to be an exercise bike, though that would be nice as well.

Topic by RollieOlly   |  last reply


What is the easiest to build form of human powered propulsion for a cardboard boat(must be made of cardboard)?

Me and a group of people are working on a cardboard boat and the propulsion has to be made mostly of cardboard.  We want to use something better than paddles.  I have been looking around to try and find something that can be adapted out of cardboard and have only found a couple of methods of propulsion. 1. paddle wheel 2. normal propeller 3. impeller 4. hydrofoil wing Anything else that might work that is not in this list would be awesome.  Remember, this is human powered so the RPMs will be low.

Question by critterfluffy   |  last reply


Make HID (human interface design) beautiful

There are few ubiquitous household items as ugly in form and function as a computer keyboard. They're everywhere. They're an inefficient and archaic visual distraction, barely suited to stamp ink on dead trees, as they were originally designed to do. Computer components need to be elegant, form well married to specific functionality needs, if computers are to fade into the background of life and thus best support it -  and that is nigh impossible with the keyboard hanging out. I'm a hci software guy. I spent almost three years writing a library of code to enable a new generation of input devices… beautiful, simple  and efficient… closer to playing a musical instrument than typing on a typewriter. I need designs for a piece or two of hardware that shows off how beautiful and/or hidden a computer input device can be when you completely minimize its form… If you are an industrial designer or a mid level maker or even a just a for the fun of it 2d or 3d CAD nerd, allowing for the device functionality will be a trivial concern, with 90% of your attention paid to the form of the device… and that's what I'm looking for… a beautiful replacement for the horrible and outdated keyboard and mouse that shows off the features of the software and blends in to people's lives. The designs will be 5-key and 10-key. The electronics area to allow for will be pretty simple -  probably just an HID chip - as tiny as possible - with ports to wire to buttons, etc -  a power source, wireless connector (preferably low power bluetooth), and wires to connect the chip to everything it needs to connect to. While the designs can be created as completely conceptual, we would prefer to be able to physically prototype them using something like 3d printing, laser cutting or other maker accessible options and electronics components that would also be maker accessible. Preferably, the file format will be solidworks compatible. For now, this is an unpaid gig, with the compensation mainly being in the form of some really sweet portfolio designs, hope for a better HID tomorrow, and maybe a makey makey type gift for those times when nothing but a banana piano will do. We do have investor meetings lined up and will credit any prototype designs used to show off the software during those, as well. If we decide to sell the software in various configurations packaged with hardware variations, and everyone feels like a good time was had by all in this trial run, then we can talk about a production partnership. If that were to be a possibility, industrial design related experience or strong enough to heavily research it type interest - sourcing, packaging, etc. - would be a big bonus. (As a note, while the  HCI is all key input based now, there will later be support for things like 3d tracking options - So, the project could get even more exciting on the HID side.) __________________________________________________ If you are interested in learning more, please use the PM system provided through Instructables as first contact. Further contact info will be provided should the initial contacts merit it. Thanks!

Topic by parrleu   |  last reply


Need advice on best sensory only pick up human movement?

Hi Can anyone please point me in the right direction as to where can find a specific sensor as follows : The sensor must cut the power to a multi plug 220v when someone comes within 2cm of where the sensor is placed. Only human interface is needed, anything other than human interface with the sensor must have no affect. Secondly, I need to have a 12v solenoid activate immediately when the power is cut to the multi plug. Is there anything out there that is reasonably inexpensive  that possibly performs both tasks and where can i find something like that, alternatively if someone has plans for a diy solution, that would be awesome. Thanks in advance for any help :)

Question by mariskaddt   |  last reply


Motor assisted pedal powered rail rider

I am trying to build a 2 person human powered Vehicle that is also motor assisted, I need a way 2 people can pedal at diffrent speeds and drive the same axle. What I think I need is some sort of differential gearbox. What Ii need to know is: Is there is a differential that can take 2 different input speeds and have one output? If it did and I also pushed it with a motor would the wheels spinning feed back though the gearbox and send the pedals spinning like crazy? Any help or advice people can offer would be great.

Topic by BillP55   |  last reply


The Power of Making: V&A Museum, London

"Making is the most powerful way that we solve problems, express ideas and shape our world. What and how we make defines who we are, and communicates who we want to be... Many people think that craft is a matter of executing a preconceived form or idea, something that already exists in the mind or on paper. Yet making is also an active way of thinking, something which can be carried out with no particular goal in mind. In fact, this is a situation where innovation is very likely to occur. Even when making is experimental and open-ended, it observes rules. Craft always involves parameters, imposed by materials, tools, scale and the physical body of the maker. Sometimes in making, things go wrong. An unskilled maker, hitting the limits of their ability, might just stop. An expert, though, will find a way through the problem, constantly unfolding new possibilities within the process." I just found out about an exhibition at the Victoria and Albert Museum in London; The Power of Making. The V&A; and Crafts Council celebrate the role of making in our lives by presenting an eclectic selection of over 100 exquisitely crafted objects, ranging from a life-size crochet bear to a ceramic eye patch, a fine metal flute to dry stone walling. Power of Making is a cabinet of curiosities showing works by both amateurs and leading makers from around the world to present a snapshot of making in our time. The exhibition showcases works made using a diverse range of skills and explores how materials can be used in imaginative and spectacular ways, whether for medical innovation, entertainment, social networking or artistic endeavour. Making is the most powerful way that we solve problems, express ideas and shape our world. What and how we make defines who we are, and communicates who we want to be. For many people, making is critical for survival. For others, it is a chosen vocation: a way of thinking, inventing and innovating. And for some it is simply a delight to be able to shape a material and say ‘I made that’. The power of making is that it fulfills each of these human needs and desires. Those whose craft and ingenuity reach the very highest levels can create amazing things. But making is something everyone can do. The knowledge of how to make – both everyday objects and highly-skilled creations – is one of humanity’s most precious resources. Items on show include a life-sized crocheted bear, an electric guitar worn on a high heel, extreme cake decorating, and our old friend the Makerbot. The show also includes a Tinkerspace - meet designers, and see Making in action

Topic by Kiteman   |  last reply


Does anyone know how to make a pedal powered rotating barrel washing machine?

I'd like to make one that uses bike pedal power, derailleur and chain, and not one with a generator, batteries, or electricity. I've seen one online that MIT students created but have not been able to find any plans or directions for making it. Need to make a cheap non-electrical washing machine with rotating barrel/s.

Question by arnold54   |  last reply


Does anyone know how to convert the three phase output from a brushless motor/generator into straight DC voltage?

I would like to pedal the brushless motor/generator to drive a propeller powered by the resulting voltage Thank You?

Question by adamalbert   |  last reply


What do humans *need* to know? (Edited OP)

Without a core set of really basic skills, civilisation is impossible.What do we really, as human beings, need to know in order to maintain a healthy, happy, stable society?I don't mean "how to solder" or "how to change a tyre", but really basic, grass-roots skills.You may be wondering where this question came from, but I was inspired by the Long Now Foundation's concept of future deep-time storage and its Digital Dark-Age Blog.So, let's have your ideas - list skills we need to preserve, in any area of expertise.If you can, provide a reference as well - a link or the name of a book....and maybe we'll inspire a few Instructables as well.Another thing to think about as well - how could we store this information in an enduring, millenia-stable way?I recently voiced my fears to the team involved in The Clock of the Long Now, and they agreed:...I cannot help but think, though, that something is missing.What is missing is hard copy.The Long Viewer and Long Server will only work as long as we are able to maintain power to the computer network that supports them.If humanity loses the ability to generate electricity, these projects will be lost.Even if the loss is short-term, a few years following some global disaster, then there will be a huge loss of information - knowledge and skills will die with those that know them.Those skills - even things as basic as farming and obtaining metals from the raw materials - need to be preserved in a way that will outlast any traditional or foreseeable computer network.It needs to be recorded in a form as unmistakeably monumental as the Pyramids or Stonehenge, but even more durable, and in ways less obscure.Indeed, I picture "the ultimate hard copy" to be henge-like in nature - strong, metres-high slabs of a material such as titanium or a durable glass. Arranged in a spiral or labyrinth pathway, the first slabs will have the most basic skills explained in pictographic forms, images of farming and metalwork, carpentry and building, hunting and weaving, with times of year shown with icons of Sun and Moon.More and more detailed information would be encountered in a variety of languages as people find the need to venture deeper and deeper into the monument.Glassmaking, pottery, medicines, animal husbandry, generating electricity, navigation, brewing and distilling, no skill should be considered too basic to be included, and it would be impossible for a single individual such as myself to even begin to list all the subject areas that would need to be covered, or even to decide what order they should be recorded.What is clear to me, though, is the need for this permanent archive, something that would enable humanity to bring itself back from some unknowable future disaster, at least to the level of being able to preserve and extend life through surgical and chemical techniques, to feed significant populations and to travel and communicate long distances with relative ease and efficiency.It is also clear that there should be more than one of these archives - humans, being only human, could easily go to war to control a single archive, and fate, being fickle, could also ensure that a single archive could be destroyed by whatever catastrophe also reduced humanity to the point of needing its help.RegardsIn reply, they pointed me towards their Digital Dark Age blog, but that is not what I meant - they are talking about saving files. Skills are different, especially the kind of ground-up skills I'm talking about.If I google for "How to Make Iron", what I get are lots of references to "How to make Iron Oxide" and "How to make Iron-on transfers".What I do not get is a clear link to the knowledge I need to be able to turn a pile of brown rocks into metallic iron using only what I can find or make from what I find. Come the comet, though, that's the skill-set I'll need.Amazon is no better at coming up with paper books on the subject.Heretical though it sounds, even this website is not what is needed, simply because it is digital in nature. Come the comet, off goes the power and this entire, wonderful edifice vanishes with the dot on the CRT.Somewhere, somehow, we need to gather these skills into a huge and durable text book. With copies.The questions are, of course, what is stored, where, how, and who pays for it?

Topic by Kiteman   |  last reply


How to make a tricycle differential?

How do you make a tricycle differential so that both wheels can be driven yet and rotate at different rates when going around a turn?  This would be for a human-powered tricycle.

Question by rpp618   |  last reply


Computer program learns physics

From Wired:"In just over a day, a powerful computer program accomplished a feat that took physicists centuries to complete: extrapolating the laws of motion from a pendulum's swings.Developed by Cornell researchers, the program deduced the natural laws without a shred of knowledge about physics or geometry. ...Condensing rules from raw data has long been considered the province of human intuition, not machine intelligence. It could foreshadow an age in which scientists and programs work as equals to decipher datasets too complex for human analysis."LinkThe software has a long way to come, but apparently it's showing a lot of promise.What do you guys think? If computers can do physics better than humans, does that make human physicists obsolete?

Topic by drinkmorecoffee   |  last reply


Radio Frequency Generator? Answered

Hi I am doing a project and it requires a radio (or anything longer than human eyesight) frequency generator. Is there any easy way i can do this, with parts from home or radioshack?

Question by LiquidLightning   |  last reply


How do I conctruct a powerful night vision flashlight?

I want to build a powerful night vision flashlight that is capable of producing a bright enough beam of light that it will travel at least 75 yards or so. I want to use this light for hunting wild hogs at night. The light needs to be visible to humans but not to animals. I want to try to build one instead of spending thousands on some of those fancy ones .It only needs to be transported to and from the stand so it does not have to be a light hand held flashlight. I am wondering if some kind of night vision Q Beam is possible. That would be perfect. It is fine if the unit is heavy due to batteries or whatever because it will be transported by a four wheeler. Any help that you may be able to give will be much appreciated. Thanks

Question by userlot   |  last reply


can any body give me design of cycle based jig saw?

I work for aborigins in india they require cheap human powered machines can anybody help i want jigsaw, drill machine design

Question by sanjay117   |  last reply


how do dust affect my performance in my computer?

How can i explain this factors which affect my computer! 1.Excessive temperature 2.Human being 3.Power outrage 4.Corrosion 5.Viruses 6.noise 7.Dust building up

Question by    |  last reply


Need help

Looking for help with my new project. I want to power my mechanical arm using hydraulics.  I would prefer to use a joystick controller.  I want this arm to be able to hold a hedge cutting machine. The arm will have the same freedom of movement as a human arm. Eventually I want to use this arm on a machine such as a bobcat or similar device. For now I just need to be able to power this arm and then I can go from there. Anyone up for a challenge???? Dave Sender my E-mail  mrdavesender@gmail.com Please see the photo of the size of the arm I'm looking to power.

Topic by davesender   |  last reply


Selecting DC Motor Power rating for an electrical-bike project?

I want to select a dc motor for my e bike project. I want to move a mass of 140 kg including cycle weight at top speed of 25km/h. I am confused with selecting motor specification, on Power rating. How can I calculate the required Power to drive a weight of 140kg with a speed of 25km/h. I have tried to use the formula that I found in the website ( http://www.kreuzotter.de/english/espeed.… ) . The power rating that I got is about 179W. But on reading of the articles on (investigating the human cycling performance), I found that the average people cycling power is less than 100W. I also have see the commercial e-bike specification, the commercial e-bike used 24V 250W DC motor to power their e-bike. Please help me in this matter, I am very confused with this, if there is any formula or calculation...please guide me ...I am appreciate your helps.

Question by rchan10   |  last reply


Tesla's human powered helicopter possible?

I know he was a smart dude and he went out of his way to patent this. Was it ever built? Could it be built and work? I don't understand the propulsion system. Is it like a bicycle or is it something else? I need one of these bad to deliver free fruit to people everywhere. My car keeps getting stuff in traffic. I don't know where all these cars think they're going, but I've got places to be and the road just isn't cutting it anymore for me. And dangit the uploader isn't working. Here's a link to the patent description and images: https://www.google.com/patents/US1655114 Well, not a link. A  URL. I dont know how to do a hyperlink without the- nevermind. sort of figured it out. Click below: https://www.google.com/patents/US1655114

Topic by avocadostains 


Sociable Tandem Cargo Trike

Your next car could be a tricycle! Check out our Kickstarter to learn whether you are ready to pedal alongside your friend and be part of our sustainable future. And, enjoy our video; we had a ton of fun making it. :)

Topic by Captain Robert   |  last reply


Anti-Land Mine Robot

I have started design and concept design on a robot to mark (via GPS and UV paint) and destroy unexploded ordinance in Cambodia.  I am assembling teams for various aspects of the project (mechanical, electronics/power, practical application, coding and programming, construction, etc).  While many people have offered their experience and knowledge, the more people contributing can only benefit the end product.  This is not a money-maker, it's a life sustainer.  I'm looking for people who are interested in using their skills to better someone else's existence.   Though it is brand new, you can visit the project's blog at http://antiminebot.wordpress.com/   All advice is welcomed.  Project updates will be regular. Thank you for your time, Huck

Topic by huck alexander   |  last reply


How much thrust usally does a 9 inch fan give out ? Answered

How much thrust does a 9 inch fan give out? Also how about a 1.5 feet R/C helicopter. How much horsepower is required to lift a human. How much thrust. If you had a 100lb man and had 101lb thrust how far up in the air would the 100lb person go. Sorry really dont want to do the calculations right now.

Question by planetroverrobo   |  last reply


Does anyone have advice for building this? Answered

I am building a recumbent trike like the one in the picture (which happened to be my inspiration once I saw it on the gallery of northerntool.com). I will be using 2.5 inch fence post for the frame, a mountain bike, a chair/desk from my school, and various other parts. I plan to make an instructable once I'm done (don't worry, I'll take pics). The pipes won't be bent, but rather welded at angles. The back wheels will be 10" pneumatics. I have a pretty solid idea in my mind of how I'm going to do it, but it won't materialize until I get off my lazy butt (I've been mulling this project over for a few weeks now) and make the sparks fly. Oh yeah, almost forgot. This is green because it will make me feel more inclined to use human powered transportation.

Question by thecheese429   |  last reply


Increase V.Leap

I was think of injecting plastic sponge filled with water as the sole of a basketball shoe, hoping the water pressure could help to increase the leg power and increase the vertical leap. Meaning : using plastic sponge Or rather i think of another alternative,which is to use static electricity to store inside the shoe,which later will transfer from the shoe to the leg of human, and hopefully increase the vertical leap.

Topic by justcallmefreak   |  last reply


electronic magnet that produces enough force to lift weight

you have an unlimited power source. now is it possible to create enough force at the right "degree" that would be repelled by the earth instead of attracted.. so like a floating magnet. but its strong enough to lift large objects..... like maybe a human?

Question by fireball9919   |  last reply


How to make bionic ear, using ordinary microhpone? Answered

How can one make extra sensitive bionic ear, with hearing capabilities which are far beyond the powers of normal human ear. I saw a video tutorial about it long ago but now that i want to make one, i could not find it after lots of online searches. Thanks in advance.

Question by muhammajunaid   |  last reply


Can someone help me use an exercise bicycle to build a kid-powered fan?

My fourth grade classroom is very hot in June. I would love to teach students how to use an exercise bicycle, their energy, and other needed parts to build a kid-powered fan or air conditioner.  I have an exercise bicycle (basement - gathering dust).  I also have a ready supply of kid-power.  Some of my students have enough energy to ride the bike all day.  My dream situation would be to cool (not just move) the air.  But, if moving air is the best I can do, so be it.  I would like to help those that are able to actually build this - thus we are in need of readable instructions.  I think I would be able to obtain custodial/boy scout leaders to assist.  This might even interest some of the 7th and 8th graders.  Please help us!!

Question by vbmom130827   |  last reply


Bio-mechanical electricity - 13W per knee.

A stroll around the park may soon be enough to charge the raft of batteries needed in today's power-hungry gadgets.US and Canadian scientists have built a novel device that effortlessly harvests energy from human movements.The adapted knee brace, outlined in the journal Science, can generate enough energy to power a mobile phone for 30 minutes from one minute of walking.A slow walk can generate an average of 5W of electricity, but they have models that will produce 13W - enough power for a one-minute stroll to provide half an hour of talk-time.The prototype makes you sound like an extra in Terminator, but the inventors are predicting saleable products within 18 months, probably powering (in the first instance) modern prosthetic limbs.Soldiers may also benefit from wearing the knee brace to power the multitude of devices they now carry ,such as night vision goggles and GPS."They treat batteries like they treat food and water - they are so essential to what they do," he said.Link to BBC articleLink to BBC VideoLink to Science Magazine articleThis whole idea seems like a "Good Thing" to me - even without the computer-control, I don't see why a pedestrian or jogger couldn't wear a pair of generators similar to those in wind-up torches, charging phone and PDA as you stroll around doing the shopping or jogging across the park. Get them with a Nike or Motorola logo, and we'd see hundreds of people wearing batman-style utility belts, stacked with all the gadgets the modern human "needs". It could really help wearable computing take off as well.

Topic by Kiteman   |  last reply


How can I convert my home gym to create energy? I own a bowflex, treadmill and row machine.

I wanted to somehow use my home gym to create additional energy to aid my solar bank array(when it's not sunny). I already have a bike / generator hooked up but I wanted to convert  the other machines as well.  This way more than just the bike is topping off the bank.  Is there a way to daisy chain the machines or is it better to individually set up each generator? how would I go about doing so?

Question by mcolonturner   |  last reply