I love these things. It's not even my field of work or study. It's just so cool to see someone rip it down to it's core components and describe how it works.

I was surprised when you added the 90 degree drill attachment, I can only imagine it was to take the load away from the little stepper motor bearing/bushing? I would wager that 90 degree gearbox is you’re biggest efficiency drop, was it making all the noise? Great video as usual!

Stunning Results!

always wanted something like this at the house .. so i could tell my kids .. if you want to play vid-games, first you have to generate the energy for it :D

Exactly the kind of development I thought about loudly in my comment on your former video to the topic. Again, thanks Rob.👍

Can you please look into the potential of actuators and their potential... Many thanks from a loyal viewer who can't afford membership but love your light you are shining

So, if you connect the output of the stepper to a step down transformer, you could get 12v and a couple amps, which can be used to charge batteries

OK, that's cool. That has to be tested with your ram jet wind turbine device

Let's see how many amps you can get hand cranking the biggest DC motor you can find!

Robert Make a battery using holes that you drill for battery cells and... foil wrapped around.. steel wool both dipped in graphene paint.

Very cool! I always wondered why everyone pedaling at the gym was just going to friction and heat, rather than lights and air conditioning. Put some batteries in each machine to smooth out the variability in available power maybe, but still absolutely viable!

I have discovered that the AGNI or Lynch motor makes a fantastic hand cranked generator as well as other input DC motor/generator/dynamo, with no gearbox required. They are fantastic motors for many applications...The Agni/Lynch Motor is a unique axial gap permanent magnet high power DC motor gives up to 93% efficiency, and it maintains high efficiency over a wide range of loads and speeds. It runs on D.C. up to 60 volts at which it can produce 9 Kilowatts (12 horsepower). The low shaft speed and high torque enable the use of a simple, cheap and efficient transmission in most applications. A 22 lb motor, it will run on a couple double AA batteries very slowly but with surprising torque, all the way up to running on an 90 volt EV battery and installed in a racing motorcycle!!! I would recommend them to anyone as I consider them a little known disruptive technology if they were to be mass produced at different scales/sizes.

Is there a scrapyard, somewhere, that specialises in abandoned New Year’s Resolutions?

Well done Rob !! 👍🏻💪😁👏👏

then you fillet a exercise bike! Are this a new form of COOKING SCHOOL? Its awesome! 🙂

Maybe if you had a spring to run a gear box motor like a C Crand light and radio.

Love the art touch 👏

Ooo! thats a good-in 😊 I think youre turning out to be a bit of a "exersize bike" whisperer too. I think manufacturers should be proud you give them a second life. All the best, have fun

Great job Robert Looking forward to your next video

love the plaster .reminds me of kenny everitts sketches .but serious . i always pour some hydrogen peroxide mix with water on cuts as it aids recovery and cleaneses the cut quick .having myself had cellulitis from such i learnt my lesson and do it all the time now

So in essence it's the bicycle tyre dynamo with a lot more complexity built in.

Blood hell 150v that’s mental. That ripe for a transformer. That mains electricity with a few tweaks. I’d only need a human hamster wheel with a cat to make that work. £150 life time supply of electricity. Well done rob!

This needs to be connected to a stirling engine powered by your sand battery rocket stove!

Okay, this is getting serious. Time to break out the Class 0 electrical gloves, lol 😆

A top cyclist can generate maybe 400W for short periods. A fit person should manage to keep up 100W. for an hour or so. Somebody said here in the comments about harvesting that energy at the gym... If you regularly had a bunch of ten fit guys you could expect to run the gym almost! One to two KW/h. You may need to hire a guy with a whip. Edit: Generators can be very efficient too so minimal losses with careful design. 30 watts seems absolutely in keeping with a single arms power, just about exactly what you would expect.

finally a stepper motor build. ive made a few that have a small crank on them, and then put some led's forwards and backwards across the stepper coils. with a little extra weight you can swing it around and around and make a really fun blinking led light show. i also put an old boxfan on one and it will turn in about a 7 mph wind. Im alittle curious why you used the handy little 90 degree drill adapter, and didnt put the stepper below your flywheel with a pully on the stepper direcly? looked like there was space down there. anyway fantastic. you ive been quite impressed with the voltage one can generate even without any gearing or stepping up.

I have a stripped down exercise bike but it has loads of magnets around the wheel. My scrap man does have 300 bikes on a pile though lol

Great 👍

i feel the need to make a fitness center ;)

I have seen old bikes on stands that turn rollers and one roller is attacked to a medium sized motor and after about 10-15 minutes excercise they have charged a battery.

Just some Daft Punk: Harder, Better, Faster, Stronger

Coincidentally, I recently acquired a floor bicycling unit (that you put in front of a kitchen chair) for a whopping 30$ because it was open box and the counter doesn't work. I don't care about the counter and figured it could easily be transformed into a generator 😁 Step-motors are usually high voltage, low amps and tough to get going (by hand, at least). They normally last a very long time, but they're not made to spin like that, so I wonder how long it would last.

I think more emphasis needs to be placed on efficiency. Generating 30W is great but if you are putting 100W into it you aren't going to be able to crank it for as long as if it only needed 50W to turn.

What will you be connecting to tge sterling engine Rob? Something similar i hope.

Epic!

If you come across an exercise bike with a digital readout, you can disconnect the digital gauge and test it to see how much electricity it is producing. I had one that I through out not too long ago, and it never occurred to me to clip and strip the wires and test it for output. I doubt that it would have been all that much though.

a silly idea, how about horse farm to power electric generator by running on a treadmill, it's bigger version of hamster wheel, since hamster don't have that much stamina...and horse eats grass, it's a green power and grass take some of carbon from the air

Very interesting. Was wondering if you have any more updates on the bulletproof graphene plastic or the production of graphene🤙

poor little stepper. try put a hoverboard motor on it (3 phase/bldc). broken hoverboards can be found for free to 10 euro and comes with 2 motors. they are great as generator.

robert how much torque do you get out of this, at the "generator" shaft point to get? or a better question is how many "generator" can you put on this little shaft before it becomes to hard to spin... can you put 20?, 30? more?

I have a small stepper motor like motor that if I put my finger on the wires and I turn the small gear (it is pretty dang small) I get a shock

Not bad. It's a lot of power for this motor I think. Maybe a bit too much. Does it specify voltage, Amps and steps/revolution ?

Triple like for new POV!

I wonder what you could generate with a human sized hamster wheel? Take a stroll and power your coffee pot.

Who needs the gym anyway.... It's comforting to know that, when the food dries up and the apocalypse starts, I only need to burn 6000 calories a day to light a bulb. Still fun though and I learn from your videos.

Can any of this get hooked up the human hamster wheel?

cool

Robert, how did you injure your middle finger ??? You know the fickle finger of fate. Peace vf

i'm way off topic here but... regarding the hydrogen generators, using an air stone to bubble hydrogen and oxygen into one of those cells full of electrolyte, can they be used to generate electricity from the gas?

Telling you ya need a Hover Board motor. If I could afford it I would send you one . There only $20 bucks here.

thanks rob. whats with the hair lol 1.56 . lookin tired mate take a break.

Rabbits On too much.

That was very interesting but a bit painful to watch/listen to. Something has gone wrong with the transitions during editing , the audio overlaps where there should be a pause. It’s like trying to read a paragraph with all the full stops removed.

👍🙏👍

Ahh something useful with greater potential. Now your talking...

I hate this video. You cut out all the ramblings. The live concept. Cheers