Building a Generator

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Published 2023-11-24

All Comments (21)
  • @Gh0sb0ss
    This actually gives people a very easy way of physically feeling how much power it takes to run different types of circuits, I think it would be a cool idea for a science fair or something
  • @paulmelois
    I have an old Singer sewing machine stand that I've always wanted to repurpose as a manual charging desk; now I've got all the R&D already done thanks to you! Awesome job, thanks a lot
  • @zescoot2590
    Seeing something like this in action really makes understanding electricity way easier than just some formulas
  • @jana171
    Absolutely LOVE this project Tim ! Attach a propellor, and you have a windmill, add a battery, and you go offgrid camping with full 12V electricity available. Measure available Kw output and explain calculations for windings, batteries, magnets and such, and there's a scientific story to be told too. This could take you in every direction you'd please 🙂
  • @camelmer02
    You have been the only person to ever successfully explain a rectifier to me. Thank you
  • @simoncajagi6785
    Its super cool how electrical resistance turns to physical resistance with this thing. Would be a great learning tool for kids!
  • @_Matyro_
    You should move to active rectifier instead of passive diode one. At these low voltages, you lose most of your power in the diodes at the moment.
    For ultra low drop diodes you will lose 0.2V per Diode which is around 10% for your voltages, for classic diodes (which you seem to be using) its 0.7V per diode resulting in quite a bit of wasted energy.
  • @JackAllpikeMusic
    I'd love to see a series of iteration upon this just like your planes - where you try and design better and better generators, finding what works best/worst and create the most powerful hand powered generator you can while keeping it reasonably easy to use and maintain.
  • @ArktinenPeikko
    My daughter was just asking a few days ago about how electricity is made. This should be clear enough way to show and tell. Might even print a project for us to build out of this. Thanks for providing the link to the files.
  • @saintsimmo8880
    Favorite content creator on YouTube. I’m a total electronics novice and feel like I come away with a much better intuition from your videos than I would from other types of learning. Definitely want to print this one!
  • @renson2160
    It's amazing how 4 chapters worth of topics of physics electronics have been covered in a single generator building video
  • @Maarrk
    Cool project, if I may add a safety concern is that you'd really prefer to use female XT60 connector on your generator.
    As is, the pins can be shorted easily by anything conductive, and that's why power sources should have female terminals - look at your batteries with the same XT60 plug, or even electrical sockets in the wall.

    Probably not an issue for this one, but it's a good habit to have 👍
  • @Acamperfull
    Once the supercaps are charged you can use them to start a car with a flat battery. This way you can (hand) crank start a modern car engine!
  • @panther105
    This is brilliant. From some experience with hand cranked tools, having a little more weight to offset the crank handle can help smoothen the power input from your hands and help with the overall balance of the whole apparatus.
  • @SapioiT
    Next thing to do would be to get a bicycle, add a stand on both sides so you can pedal with the back wheel in the air, and then connect it to the pedals. Or maybe even make a custom bicycle pedal assembly to be able to charge a phone while cycling, regardless of whether stationary or not.
  • @mennims
    Hey Tim, been watching you for over half a decade. Your generator came out beautifully. It looks amazing, seems to operate smoothly and work eficiently enough for it to have some practical use. It's great to see you do more electronics as well!

    Something I struggled with in electronics was understanding voltage and current and it's relation to watts and using the "correct" terms that other electrically experienced people will understand. I'd like to share a concept that works for me.

    Power = RPM x Torque
    Power = Voltage x Current

    I see RPM as Voltage, current as torque.

    When I look at the charged storage in your generator I imagine a metal flywheel spinning relatively slowly (low voltage) but with a lot of mass (available current). When that flywheel is charged, your brain may not think "what do I do with all this speed" (or volts), you may think of it in terms of power instead.
  • @foobars3816
    We need you to read through the comments and either tear them apart or use them to greatly improve the design. This is probably the most interesting project I've seen in a while on any channel. It's doable for the average person and super useful if they end up stranded somewhere without power.
  • @michroz
    Another idea for improvement is to put 2 thick steel discs on the outside of your magnetic rotors. I believe this would increase the magnetic field by containing it within the steel discs. Also this could somewhat increase the fly-wheel effect. Maybe the coils also could be wound around (or in-between) the steel cores to even better direct and improve the magnetic field.
  • @sgtbrown4273
    Yes, I agree, you need a passive diode and definitely hook a super capacitor to it. Charge it for a few minutes and then it will charge your phone. That way you don't have to keep cranking continuously. Awesome project is always.😊
  • @khaledadams4329
    That is so interesting to hear you say how much physical resistance it creates with a load. I want to try printing one of these now.
    Thanks for sharing!