Bicycle LEDs

Hi Everybody, I have made a series of LED lights on my bicycle spokes, for driving at night. I use a 9 volt battery with 9 pieces of white LED 3.3 volts, which I connect each with a 330 ohm resistor 9 pieces 1/4 watt. its durability is approximately 30 hours later the lights dimmed, is there any way to be more durable ?

Question by pro5200   |  last reply


Bicycle Speedometer

With my customization of my bike, I just have to have a speedometer. But, I haven't found a single place on the Internet showing how to make one, just how to buy one.I know that speed = distance/time. I was thinking, since this is going on my bike, I could measure the circumference of the rim and hook up a circuit that would have a something (motion detector?) on the front brakes and another something on the rim, the one on the brakes counting the number of RPMs. I could have it hooked up to a timer, and it would have a digital read-out, which would calculate the speed, that updates every certain number of RPMs.Has anyone ever built a speedometer, or if not, do you think something like that would work?Thanks!

Topic by Bran   |  last reply


Bicycle-generated Power

I want to make an attachment for my bike that generates and stores power when I ride it. I'm thinking of using and old car's alternator, but I don't know much about electricity, so I'm asking for help. Also, how can I store the power? In a battery? I'm planning on hooking up a plug outlet, which might be removable to save space. Thanks!

Topic by jaredsalzano   |  last reply


WHEELCHAIR POWERED BY A BICYCLE

I'm looking for some help in constructing a portable mechanism to attach to a manual wheelchair and to the front of a bicycle while still using the wheelchair handles to manouvre the wheelchair.  The front wheel would have to be removed in order to utilize the wheel chair handles to steer.  This attachment would be for two elderly people able to get out but not able to walk far.  Using this converted mode of transportation would make life so much easier.  The wheel chair is presently folded in the trunk of a car and the bike could be attached onto a bick rack for sightseeing purposes.  Any ideas out there?? Thank you,

Question by huot   |  last reply


[Help] bicycle proximity sensor

Hello guys i would like to start making a proximity sensor the idea is to mount it on the back of my bicycle when an object/vehicle come close it gives me reading with distance and maybe a beep or something like that,the question is i found there are 2 methods one using IR and one using ultrasonic,which one is cheaper and which one is better and easier.this is supposed to my first instructable involves programming.

Topic by Mido Masry   |  last reply



I am planning to make electric bicycle with front wheel hub motor drive, how can I calculate the top speed? Answered

I want to make electric bicycle as my engg project and I'm unable to calculate the top speed of my bike. I am going to use 250 watt motor.Also I want to know the max incline plane the bicycle will be able to travel

Question by Abhisekdai   |  last reply


How much torque is required of DC motor to move vehicle?

My motor specification is power=500 W, RPM =2500, motor torque = 1.91 Nm, drive sprocket is 16 teeth, driven sprocket is 43 teeth , gear ratio is 2.38, diameter of wheel is 26 inch. i would like to move a vehicle of weight 150 kg with the speed 10 kmph. what would i do ?

Question by jpthermalpower   |  last reply


convert bicycle to recunbent without welding? ?

Convert bicycle to recunbent  with out welding take parts of 2 or more bikes too make 1 bike

Question by zzjoev   |  last reply


Bicycle generator for lighting a led strip?

I want to make a bicycle power generator for a fair. I want to make two of those in such a way that the one who pedal faster get more number of led bulbs turn on. Can anybody help me with this kind of project. 

Question by mick_ralte   |  last reply


How can i make a (strong) electromagnetic wheel, so that when i give voltage it rotates? (in a bicycle)?

Plz refer me to some kind of web site that gives me this info.......

Question by The Mak3rs   |  last reply





How to dismantle bicycle hub motors?

I need to open up the hub motor to repair the wires which have been ripped out of the hollow axle. I am reluctant to use force to separate the motor shell and it does not seem to want to separate after removing the allen screws. Which side is the best to remove? It is an ebikekit 500wat motor.

Question by etransport   |  last reply


repair a tire pump? Answered

Hand pump offers little to no resistance when pumping. loss of seal inside the pump cylinder.

Question by    |  last reply


How can I make speakers on a bicycle

How can I make speakers on a bicycle with 12v but when I ride the bike battery that is recharged from 12v dynamo to do this does anyone have an idea plz help me!!!

Question by xtr3m3trOjAn   |  last reply


Currie Electic Bike conversion kit

I inherited a Currie E Bike conversion kit which included the rear wheel and drive motor assembly and battery pack/charger combo. It did not include the wiring harness or throttle. I did find a generic throttle/control on ebay. The kit did not have the rack that I've seen in other pictures, so I will make my own. Does anyone know enough about these to know the wiring layout or any other parts that are needed? I have a bike already to convert. I can solder and do most of my own bike repairs and some fabrication, so this doesn't appear above my usual skill level. Thanks in advance for any help. Jim

Topic by jimmilt   |  last reply



how to make a small hand held portable rechargeable bicycle air pump??

How to make a small hand held portable rechargeable bicycle air pump??which can be either attached to the bicycle or be handy.I was kind of thinking to make a compressor operated by bicycle itself when one is cycling and air is pumped into a cylinder.Now when the air in the tyre is low one can use the air from the cylinder to refill it.But i need technical help,and how-tos? as well as financial help?

Question by    |  last reply


How can I equip my bicycle with a tracking device? Answered

I'm about to start back to school and I want to be able to find my bike when it gets stolen. (I am operating under the assumption that it WILL get stolen.) I'd like to outfit the bike with some sort of tracking device, something that will be somewhat easy to hide and not cost me hundreds of dollars. I am a tech newbie but I have friends that can help me with anything complicated, so be specific if you have an idea and I'll do my best to figure it out. Thanks!

Question by KedaDibandion   |  last reply


Could a 12v 6w bicycle bottle generator be used to simultaneously charge two USB devices at 5v 3w?

I'm looking to power a few different USB devices while I ride my bicycle. Hub dynamos are typically 6v 3W AC, which makes them pretty conducive to USB which is 5v 3W DC, and there are some kits that do just that. However I've found a few bottle generators (the kind that run against the tire) that produce 12v 6W (I'm not sure, but I think they are DC). Now I'm no Nikola Tesla, but it seems to me that one of those could charge two USB devices at once. Either some kind of splitter or just a 12v battery with a USB hub. 

Question by jhattabaugh   |  last reply


Can I use arduino to control my high-powered bicycle headlight?

I'm in the midst of building a new high-power led headlight for my bicycle (i.e. Ive ordered a new battery and a bunch of hardware, led's and a driver).  My question for the community is whether or not an arduino unit could be used to control functions or modes of the light.  I have built alot of lights and know a decent amount about electronics but I have zero experience with arduino and programing.  I am using this buck driver (http://www.ledsupply.com/0a009-d-v-1400.php) with a triple cree xp-g led and a 14.4v lithium battery.  Ideally I would like a single button to cycle through 5 modes: off, low, high, F-U idiot driver, and strobe.  If anyone knows what kind of stuff I would need to buy(i.e. controller, switch,etc...), if the stuff would interface with this driver, and how I would go about programming the thing I would much appreciate it. Thank you, Patrick

Question by phish814   |  last reply


What kind of LED's should I get? Answered

Looking to buy a butt load of LED's. I hear eBay is a good place to get just that. Problem is, I don't know what to look for. I want the brightest ones possible because I'm going to use some for a bicycle light. Just going for white, uncolored LED's (planning on adding external colors in later projects). Any suggestions? Much appreciated.

Question by Tommy Jae   |  last reply


Wiring Question

Ok, I recently purchased a Go-Ped for practically nothing, and I really, really, really want to fix it up. I want to mount a couple of LED powered bicycle headlights on the front, and a tail light on the back. However, I want to be able to turn them all on and off via a single switch, mounted to the handlebars.I know very little about wiring, but I do know that most bicycle lights require physical pressure to power them on or off. Maybe there's something that can go between the batteries and bulbs?Any input you can provide would be fantastic!-Ryan

Topic by ryry214   |  last reply


produce electicity in a bicycle to charge a cell phone or i pod?

Im from india, residing in chennai. im in my high school. i have an idea of producing electricty from my bicycle to charge small devices like cell phone or an i pod.     can someone guide me to the right way ??????????

Question by kind   |  last reply


How possible would it be to build a pedal-powered mobile toast shop?

I am thinking to build a bike-with trailer that powers one or more toasters, by charging a battery then releasing that power. Do the electrical among you believe this is practical? Could there be enough lekky? What considerations should I have? Also - a lot of instructions for this on the web are based on US power supply. Does anyone have any links to UK based instructions.

Question by xhalmers_860   |  last reply


Arduino Strobe Controller for bike lights

Hey guys, this is where I am selling kits to build my ultimate Arduino strobe controller system. Read about the whole project here! Bare PCB alone (comes with a BOM for population): $8 Complete Kit with everything but the light modules and battery charger: $50 These prices include shipping within the continental USA. If you're in the US, I will include two 18650 Li-ion cells with the kit. If you are outside the USA, shipping will cost more but I can't ship the batteries, which works out so the price will be the same! You will still need to acquire a charger and supplies for building your light modules, no matter where you live. PM me if you are interested in buying a kit!

Topic by thecheese429 


My HERO chopperbike project

As I kinda promised in my first Instructable comments (Make a Custom Star laced bikewheel) I am starting a forum thread on my chopperbicycle build HERO.This isn't going to be an Instructable but I will try to show a lot off pictures and tell more about the process off making this dream a reality.Whenever I have time I will make updates on this forumthread about the build so this is going to be a story in the making.A little about the why ?I am a bicyclerepair and sales men by profession and got into contact with chopper and cruiser bikes about 5 years ago in my shop, this got me started looking into what else there was out there in the bikebuilding world and slowly but shurely the idea off making a bike off my own was developing in my mind.In 2007 I started building this bike.This is all for now ( bed is calling ) I will update in a couple off days and start telling about the work involved.

Topic by MasterRed 


How to make methane compressor from bicycle pump? Answered

Methane (biogas) is a byproduct of a number of green alternatives such as a compost heap. This methane can be captured and processed usefully in small volumes. However it must be compressed to some level that will produce a controlled flow, let's say 14-20 pounds per square inch. In fact the methane could be captured and stored in a bicycle inner tube for later processing. Anybody got any thoughts on how a bicycle or small aquarium pump could be modified to compress small quantities of methane?

Question by egbertfitzwilly   |  last reply


Soldering/brazing/welding steel, bicycle chains?

Hi, i am working on a project (in Vienna, Austria), and a part of that process will be that i would have to clean a bunch of used bicycle chains and create other, rather smaller objects out of them. they dont have to hold a lot of weight, they vary from 4 to 6 chainlinks or so. At the end I think I will have between 50 and 100 maybe 200 pieces, so it's not an industrial amount but not a single few pieces either. FYI: bicycle chains are made from steel, they are not stainless steel, usually its chromed, there is nickel in it, so when its used they surfaces are often damaged, so it has rust on the surface as well. it has really small hidden parts where grease, dirt and rust stays hidden and stuck too. For the cleaning: I have been cleaning chains to create prototypes and individualised pieces so far with Terpentine and experimented with other types of Degreasers, Soaps, with toothbrush method:) and rags, also other kinds of paint thinners (terpentine doesnt smell so bad, but still removed a fair amount of grease dirt and rust) Degreasers are not very effective, soap and toothbrush and rags take a lot of time. Soaking in terpentine helps but its still time consuming. I havent tried aceton yet. Vinegar and stuff like this dont seem to be so effective either... For assembling/connecting: I have used for individual pieces chain tools (putting a small pressure on the chain link pins, so they are not flexible anymore (as chains supposed to be normally) and then forced bending them in the position they should be in. This is stable enough for the stuff I want to do (they are only decorational) but it's a lot of work, takes a really long time. I did welding too (MIG), but the plates are individual pieces, it doesnt weld so nicely, or its not so easy, and I dont have my own welding machine in my workshop space, I have one in a different place i can use, but i dont want to invest and buy one just for this, and it would be nice if I could do the whole project in my own space, and i wouldnt have to transport so much stuff all the time back and forth... and it's not necessary to have it that strong as i can actually get it with welding, because it doesnt have to be that resistant, doesnt have to hold so much weight, as they are going to be only smaller decorational objects anyway. Ideas and tips that came up, havent been tried yet though, or didnt really work yet: - soldering: with gas flame (torch) and simple solder. i tried shortly, didnt really work though, didnt connect, maybe i give it a try again, not sure what i did wrong though, maybe its just not the right method? - using screw glue (not sure if thats the right name in english:) rather smaller amounts or transparent ones, applying it at the inside points, so it still looks nice. - i havent tried epoxy and i am not a huge fan of the idea, but i dont know enough about the costs, process and the environmental effects of it... - it is an option also to use some temporarily working, not very great but cheap and fast method for assembly as preparation and then just quickly fill holes by welding, i thought about trying soldering or screw glue before welding and just zack, zack zack weld them one bye one, it would be easier if they are somehow already fixed in the position they should be in (as they are small and very flexible pieces of metal otherwise), problem is though that whatever i use as preparation, will be quickly burned by welding, which is in terms of environmental effects not so great, but also has aestetical consequences i guess. - i just read about brazing, i am not sure yet what i would need for it, for smaller stuff, what is the difference between brazing and soldering exactly and how well it would work, what are the costs of investment etc. - for cleaning: one idea i havent tried, just read about it is sandblasting. I would probably have to ask some company to do that, as i really cant afford to invest much more money in equipment right now, not sure if i even have the right space for that, and it seems anyway for 50 or 100 pieces disproportionate somehow. I would like to use a method that is not too bad in terms on enviromental-friendlyness or how to say, not very damaging or too bad chemically etc. it would be important that whatever i do, the endresult: - holds more or less - looks nice, either invisible the parts or things, materials i add so it holds, or it has the same colour/material like some kind of metal. it can be that i will paint it over with some metal silver colour at the end if necessary, for having a consistent colour surface, or to prevent from rusting afterwards. - should be cheap during the process, so low running costs and more or less environmental friendly, and preferably some method to use tools that are cheap or i have access to, not very expensive to invest. - i prefer to do things by myself and not outsource the process to companies unless it has big advantages (like for example if it turns out sandblasting is cheap and really environmental friendly i would consider it actually:))) i am really happy for any tips on these things, before i spend more money on stuff just to try it out and find out it's stupid, or not what i need, not what i am looking for:)

Question by bikese_xual   |  last reply


Arduino bicycle security "system"? Or something similar?

After having my bike stolen I was brainstorming ideas on how to stop it from happening in the future. An idea I came up with is that, since I only leave my bike unlocked while going into a store, and I only go in with my friend(who also uses his bike), I would put an arduino board under each of our bikes.  There would also be a third "receiver" board that one of us would put in our pockets.  When the two bike boards are X feet away, the reciever as well as the boards would beep, flash, whatever. So, my question is, put simply, is this possible? Exactly as outlined? If not, how could I make it work and be similar, or at least as simple. If it is, could you point me in the basic direction of what I would need to do with the Arduino, or w/e you think would be best.

Question by Soldier62994   |  last reply


Where can I find power supplies for EL wire...

...that are powered by a bicycle, as mentioned at the end of this article? http://hubpages.com/hub/Dress-Up-Your-Bike-For-a-Safe-Ride

Topic by mrshow555   |  last reply


Help! Questions about virbration absorbtion for SLR bicycle mount

Hey Guys!Firstly I just stumbled upon this site while searching for answers to my build and on 1st glance it looks great! Loads of cool stuff to try..Anyway, I'm looking at building myself a camera mount for my Canon 350D to go on the front of my bike. My main issue/worry is vibration running through the bike and the mount to the camera and damaging it. I've seen loads of instructions on how to make bike mounts on here, but am still worried about the damage that could be done to my camera (my pride and joy!) if I undertake my project without dampening any vibrations from the road.I'm going to be doing timelapse/stills photos from the front of my bike around London (not the smoothest of roads!) so want to be sure I won't be damaging my camera doing it. The front of my bike has decent suspension so should take the hit of the bigger bumps but it's the smaller, higher frequency vibrations that worry me.I've searched as well as I can at 2am but can't find any of the instructions covering the topic of vibration, so I was wondering if there are any mounts or heads out there that are designed for this purpose or if anyone has built something similar with success (or lack of camera damage anyway!)As I'm doing stills work I don't mind about it being slightly 'wobbly' it's more the vibrations that worry me.I've found websites selling anti vibration materials (http://www.farrat.com/anti_vibration_materials.html) so I wonder if that could be incorporated into a more general design.Thanks in advance for any tips or links! And sorry if this has already been covered but I've not found it!Ian.

Topic by flying_giraffe   |  last reply


I want to build an electric bike using mechanical energy?

Hi all  I have been given a project that I want to build an electric bicycle such that when i do peddling the mechanical energy converted to electric energy is stored in the battery and when my battery becomes fully charged i don't  need to peddle any more and use the battery and vice versa Any help ??????? regards Yaseen 

Question by yaseen_123   |  last reply


3.7v LED driver

Hi guys how are ya doin? :DRecently I'm working on the next project, which is about battery powered bicycle led lamp. So in that case I want to use LED driver. Then I've founded this schematic with CMOS 555 timer, who runs more than 5 LEDs in series. Excited by this new found schematic, I bought the parts & connected them like so. Unfortunately, it turns out, it wont work. :/ At 3.7v they won't even light up, but at 5v they start to shine a little bit. I'm wondering do I need to put different transistor (in my case it was PN2222A - that's the one I had and its equivalent to 2N4401)? Or what the problem with this circuit.I would more than thankful for your help. :D

Topic by JohnSmith-Workshop   |  last reply


Charge battery with bike dynamo

Hello, I would like to charge a battery using my dynamo on my bike. The battery I would like to use for my head and tail light for example and for charging my phone. Would this be possible and how? Thanks in advance

Topic by doppiej   |  last reply


How would I add a timer to an alarm system to let it ring for a set period of time? Answered

Http://www.dealextreme.com/p/vibration-activated-120db-anti-theft-security-alarm-with-remote-control-keychain-23633 Basically trying to add a timer to this alarm so it doesn't buzz until the battery is dead. I just need to know what parts I need and to wire this to that.

Question by Peace_Maker   |  last reply


How do you install a bicycle generator to your wheel to power monkeylectric bike lights?

On Monkeylectric website under (FAQ) said the monkeylectric lights can be powered from the energy of the spinning wheel by using a bicycle Hub-integrated generator.  How do you install a Huh-integrated generator to your bicycle to power the monkeylectric lights and what parts do you need?  Also is a Hub-integrated generator the same as a Hub-generator?

Question by John Naglosky IV   |  last reply


i have made 4 bicycle dynamos each gives -2-3 volts .i need a way to combine all this so i can get 1 single big power !?

I have made 4 bicycle dynamos each made using a normal dc motor and each  produce 3 volts .i want to know how should i connect  them so that their powers suplies produced can be combined and which can give me 1 big single supply ?

Question by roboguy22   |  last reply


need help building electric bike!!!!

Hello all, i am building an electric bike (basically converting my old bicycle which is useless into an electric one) and figured that no one could be a better help then here at the instructables! ;D anyways, so i am using a 24v 250W motor along with 2x12v 12Ah sealed lead acid connected in parallel (in my country it's almost impossible to find a lipo4 or lipo battery for that matter). i reckon i should be able to get 30kms out of the batteries. so first of all i needed to know if this could work out for me (btw, it's not a hub motor it looks like this: http://i02.i.aliimg.com/photo/258897322/DC_Brush_Motor_XYD_6D_v0.jpg) but, more importantly what i want  to know is that i since i can't find an electric scooter controller over here, would it work if i could connect a electric thumb throttle (or twist throttle) in series between the battery and motor on one side, sort of like u connect a normal fan regulator or switch by cutting either the +ve or -ve wire in half and putting re connecting the wires through the switch, like in the picture below (sorry for the bad diagram), so, thanx in advance, any help will be appreciated and please reply asap as schools are starting and i have to be done before the vacations :P 

Question by arsi   |  last reply


Feasibility of an eddy current difficulty brake on a tricycle.

Hello all,  I'm a biomedical engineering student in Canada, and I'm working with a doctor to develop a training tricycle for children with cerebral palsy. One of the issues we'd like to solve is that since the tricycles are not geared, some children are simply too good at pedalling on flat surfaces and don't get the necessary muscular workout in their legs from pedalling.  We'd like to add some sort of difficulty setting to the rear wheels of the tricycle (the front wheel is occupied by a locking mechanism we designed) to make pedalling a little more challenging for some kids. I considered using a friction system but the idea of adjusting tension in two breaks simultaneously and the frequent pad replacements doesn't appeal to me.  I recently thought of using eddy currents to slow the rear wheels. This would be extremely convenient because we could control the eddy currents in function of the child's strength to give them each a personalised workout. My questions are : Do you think it's feasible to use eddy currents to adjust the difficulty of pedalling a tricycle by slowing the rear wheels? Could an electromagnetic system be used with a sufficiently large battery to allow a child to ride throughout a day? Would a system with swapable permanent magnets be more efficient (similar to a power tool)? Would an eddy brake system produce excessive heat that could in turn harm the child?  Thank you for all your help as I'm not an electrical engineer. 

Question by ThomasC311   |  last reply


how to measure the weight of pushing on every pedal of a bicycle?

It's for a school project.. I thought the FSR sensor and arduino. I would like to measure the weight of a person for example 100kg.Maximum value of the FSR sensor is 10kg. I would like something more in detail if you could help me.

Question by CristiZ   |  last reply


Do you think it is possible to build a sturdy bike out of pbc pipe?

I am trying to make a motorized bicycle, and i want its frame to be very light, and sturdy, as well as inexpensive..... do you think pbc will work? If not is there some other material i can use that is cheap but sturdy?

Question by Burn   |  last reply


E-Bike motor selection, would it work? Answered

Im thinking of building an ebike, but unfortanately im stuck at the motor selection. I was just thinking, if you use 250W brushed motors for them, can this motor be used... If yes , just how to use it for a chain drive E-Bike? Any help will be greatly appreciated.

Question by robobot3112   |  last reply


Centrifugal clutch not gripping well? Answered

I mounted a rototiller engine (Tecumseh TC300 or TC200 I think) on a bicycle after un-siezing every moving part on it, cleaning the carb etc. It seems to run well and starts very easy. But for some reason it won't make the bike move. When it's at full throttle the engine doesn't bog down or anything but smoke was coming from the centrifugal clutch and it didn't move the bike. The wheel on the bike spins if lifted off the ground but stops under any resistance. I don't think the gear ratio is to wide but that might be part of the problem. I think the clutch is not gripping well, but it looks exactly like the new one that I looked at. There is no friction pad on the shoe, just steel on steel. Should I try cutting a cross-hatch into the shoes and drum of the clutch or is there a better way? Mabey something I'm overlooking? _______________________________________________________________________________________________________________ UPDATE: The problem was the gear ratio. I have made it much narrower and the bike works now, but it has little torque espciaaly below about 5 mph. So I will make the gear ratio even narrower.

Question by Jaycub   |  last reply


Need help on a circuit design and picking out components for a high output LED bicycle light!

I am building a high powered LED bicycle light using two 7V 5W LEDs (P/N: VL-H01W60005 from here: http://www.superbrightleds.com/moreinfo/component-leds/vollong-5w-white-high-power-leds/898/2213/ ) and I am unsure what other components I should use.  I was considering using a bunch of 9v batteries in a series & parallel configuration to achieve 18v and a higher amp-hour output.  Also, could I implement the use of a Joule Thief in my circuit to get more out of my power source?  Does anyone have any suggestions on a different power source as well?  Many thanks!

Question by audiological   |  last reply


what is the best way to make an induction charging system?

Using Neodymium magnets on the spokes of a bicycle rim, and coil around both forks.

Question by Alanclark1966   |  last reply


Does anyone else remember an old educational physics film with a flying bicycle wheel?

I once saw a physics film covering various aspects of motion and the mathematics thereof.  In the part about rotational forces, a bicycle wheel (no tire) was spun fast enough to actually take off under precession force.  It was very a short flight in an arcing trajectory ending in the wheel inverting its axis and slamming into the ground...hard.  I've been wracking my brain trying to remember the name of the film to no avail.

Question by Dark Solar   |  last reply