Bike light generator from stepper motor

[christo930]

I was considering installing magnets on the spokes and putting coil near the spokes, would this work, and if so, could it power maybe 4 leds? I am looking just for visibility of my bicycle, not light to see where I am going. I live in a city that is pretty much always well lit enough for me to see, I just worry about not being seen. I also worry about the resistance of a sidewall generator like yours. How much harder is it to pedal when you are generating electricity for your lights?

[bob3006]

Did you add diodes to protect the LEDs from the reverse voltage? Considering the stepper motor outputs AC and LEDs can usually only handle 5 volts of reverse voltage, I'm thinking a power diode in series with each LED would be necessary?

[CovertOperations12]

hey if the motor was powerful enough.....you could hook up power to the motor and make a e-bike :D



[214lilRobert]

@dinomaui where did you get the stepper motor from I bin trying to find one

[dinomaui]

@214lilRobert

1:30 in the video

[MSCompuServ]

You might want to think about inductive lighting. Less moving parts on top of the moving parts that are already on a bike.

[zackthegoth]

very nice, I made a fan generator with a stepper motor, now i have transformers that step up the voltage a little and I can run 8 leds for basically free. It's soon to change though if I can get the microwave turntable motor good on it.

[mikr0bas]

does the stepper motor need some pcb board for this conversion?

[dinomaui]

@mikr0bas No, just connect directly to the motor leads.

[mikr0bas]

@dinomaui how did you make that spring loaded thing?

[dinomaui]

@mikr0bas I just put it together out of scrap parts I had

[captainbackflash]

Congratulations, you invented the dynamo!. Besides of that, it is a really good idea to use a stepper for that.

[Jaso4444]

i live in japan and i have a ultra high intensity LED built in

[chabelis21]

Thanks for this video, it's great, i just finish putting on my bicycle, but i have a question. how do u make it spring loaded? i got it on there but i think i need to change the robber and the spring loaded stuff ... help????

[ypoora1]

0:42 OMG! Lazers! Pew pew PEW!

[bogdanbarannik137988]

you should add capacitors for the led so you will have constant light at moderate speeds not varying intensities

[cristicrizz]

Is very interesting what you can do with a stepper motor, I did something similar, but not connected to the bike.

I used three capacitors in parallel to obtain 1600uF (1000uF 35V, 35V 500uF, 100uF 35V) (with both large capacity is better for us) and a 80K resistor (33K, 47K). After the capacitor is charged, is able to keep a led on up to 5 minutes (capacitor charge lasts a few seconds.) A diode must be conected between stepper motor and capacitor. Soon I'll do a tutorial.

[PauloOp23]

Łał koleś wymyslił dynamo,trzeba to opatentować.

[royalconcrete1]

wow, out of a lazer printer.  what a lil smarty pants you are! A future Bill Gates.

[Jackziom]

How much power the motor produces?

[MrMaticevicmarin]

Is that a brusshless motor? does it need to have rotor made of magnets and stator made of wires to generate power?

[dinomaui]

@MrMaticevicmarin

Do a Google search on stepper motors, then read the wiki link.

[graywackeknifebdr]

Free energy has been here for a while ,But Elite controllers don't want ppl to be free from the costs of energy,Check this free energy magnet motor at LT-MAGNET-MOTORdotCOM ,Let the revolution begin!

[101AOK]

Thanks for TALKING about your project instead of having some stupid illegal background music and no info at all. Nice job on the lights. I want to make some for an electric wheelchair (not using the chair batteries) and use the small wheels. It should work the same wouldn't it?

[dinomaui]

@101AOK Yes it shound work. Try to find a small drive wheel so the motor spins faster. That way you'll have light at slower speeds. :)

[101AOK]

@dinomaui You rock man. Thanks for the reply. that sounds like a plan!

[josephdupont]

Very nice conversion.. how did you connect the friction drive to the rubber disks.

[dinomaui]

@josephdupont

It's just a rubber wheel glued to the drive gear on the motor.

[clowj69]

ok im sick of paying for batterys and i have a couple stepper motors layin around and im going orderd about 100 LEDs off line so how do you do it

[dinomaui]

@clowj69

Check the projects page at dinofab.com

[MyCarGoZoomZoom]

They used to have thses on bikes bout 20 years ago cuz my dad always says that everyone had dose including him i wondet if dey still sell em

[pentiuman]

@MyCarGoZoomZoom Yeah, your dad's right. I had one when I was a youth (in the 1970's)! Now, I just need to search and see if anyone makes them.

[hameeds01]

dude this stepper motor (Generator) will fuck your all LED if u run your bike fast so becareful OK

[dinomaui]

@hameeds01

So far I've not blown any LEDs and I've had it going pretty fast. It's AC voltage so it's pulsed. If it was being converted to DC it might go over the current limit of an LED.

[fifa97etc]

i have a q for u: what's the maximum output voltage of the stepper? did u have to reduce it like soldering a resistor before LED to make sure that is doesn't get too much voltage? above 5V will damage the LED. Please responde asap. Thanks.

[thecoolman101]

thats cool but you could blow out those led's if you over charge them, unless you have a capacitor

[HauntKettle]

Haha dude that's the best ghetto mod i've ever seen :)

[coryrbk]

frickin' genouos?

[QWILDER66]

A JC Pennys bike???? CLASSIC!!!!

[KaroKann666]

hi, nice arrangement, did you make a circuit or just connect the stepper motor to the leds?, how many voltaje does it generate?

[YoLninYo]

you know you can put the link in the description ... that will save viewers from typing it all in from an image. cheers.

[jasanpahaf]

would the light brake/ explode if you spin the wheel too fast?

[austinartwar]

<<-- austinartwar Subscribe to my channel or rated video please. I subscribed to your channel you should subscribe to mine also. I made these animations (anti-bp) to help circulate. Bp sucks and I'm passing it on.

[TheStevenoxley]

i would break that shit so fast

[bayhoecott]

needs waterproofing

[rhblakeman]

I have laser printers and dot matrix printers ready for the scrap yard I've picked up at auctions and people have given to me, never thought to use the steppers for a generator even knowing a motor being turned becomes a generator. What make/model laser printer did you get a motor with a rubber pulley from? I had been saving select motors for a CNC project but I will now likely save all of them as long as they are good.

[dinomaui]

@rhblakeman I glued the rubber wheel onto the gear that was already on the motor. The motor came out of a Dell 1310 color laser printer.

[wilfeatscheese]

yeah bright enough to fuck up your cammera mate XD

[cristian3131]

I have a 220 motor which I intend to use as the generator. I will use a rectifier but the voltage is still too low and I want to power my horn too. Any suggestions ?

[hhhh1997]

what about a dvd player motor it has couple of wires

[mohamadyassine]

Can i charge my mp3 using it?!

[dinomaui]

Not until you convert the AC voltage to DC voltage with a bridge rectifier.

[mohamadyassine]

why can't i just use a dc motor from a toy race car for example

[stormryder23]

very nice !

[ExpertsComputers]

Does it generate battery power or electricity. So should i buy a battery powered led or electricity power led like led bulb.

Please reply Soon.

[dinomaui]

It produces AC current, which is electricity. You can use any LED.

[ExpertsComputers]

What is the Power of the AC current produced like 40 watts etc. Okay so if i use a battery powered led will it not get fused ? Okay then is there something which can convert ac to dc. If then where can I buy one. I am living in India Bangalore , Karnataka .

[JBofBrisbane]

@ExpertsComputers - Google "diode bridge rectifier", and any electronics supplier online should have what you need.

[BadassCeino]

I have two old vcr, can I use the motors out of them to do this?

[dinomaui]

Most likely not. You need a stepper motor. If it's a stepper, it will have 4 or 6 leads coming out of it. If it has 2 leads, it's a conventional DC motor.

[hobbit04]

yeah of couse

[tpm4life]

Im a big fan of DIY power. Nice work man...

[toddha684]

nice :)

[mikeroulant]

This thing is just plain beautiful!

[SOIAx11x]

Cool....

[9b5as]

I have thought too about using stepper motor as generator on my bike. However my project is not done - lack of time :]

Good luck with improving your system.

[MakerDino]

I don't see why it wouldn't.

[kazimierz198]

does this work in the rain?

[spacegeek1000]

Nice :)

[Arbator177]

you really need to make a tutorial on how to make this generator. I really would like to put this on my bike. This is pretty sweet man keep up the hard work!

[Programming2011]

@Arbator177 it easy u just need the power generator "dynamo" set it up, then connect the wires to it...

[aidanish]

@Arbator177 it's extremely simple, solder two wires to the motor (stepper motor taken out of printer might have wires attached already) solder other end of wires to an LED. On the side that you twist to generate electricity attach a small wheel (maybe an old toy car wheel) The wheel should rest against the bicycle tire and there you have it. Hope this helps.