Electric Motors Explained – 50 Year Old Toy Unboxing

Electric Motors Explained – 50 Year Old Toy Unboxing


Alright so today on Repairs101 � I�ve
got this science kit from 1965 � still in its original box � that I�m going to open
and assemble and use to explain all the different components of an electric motor and how one
works. I�m unboxing a fifty year old kids� toy
that most kids would find pointless and boring because understanding how an electric motor
works will unlock the secret of how literally millions of different machines work; machines
that you use and ride on everyday. This invention is widely used because of its
versatility � it can be made small enough to drive the hands on the tiniest wristwatches
and big and heavy enough to drive the wheels on the heaviest of heavy equipment.
The coils are all wound clockwise so that the magnetic fields are consistent.
The motor exploits the concept of magnetic attraction and repulsion and the forces of
nature are put to work using rotating and stationary electro-magnets.
As the rotor spins, each commutator comes in and out of contact with the power circuit
through the brushes. The stator is an electro-magnet that is energized
at the same time as the rotor. As for all you thinking girls and boys who
are going to go on to become engineers and industrial designers � remember this machine.
It runs completely clean. Don�t forget. Alright, thanks for watching and don�t forget
to subscribe!

14 Replies to “Electric Motors Explained – 50 Year Old Toy Unboxing”

  1. Awesome project.  Wish I would have learned stuff like that as a kid.  Why aren't schools doing stuff like this? 🙁

  2. Great video man but you need to slow it all down and take your time. A shot is wasted if the viewer doesn't get time to appreciate it

  3. Anybody remember when #kids #toys were educational? 
    #Christmas in 1 week! Get them something #smart ! 
    Like this:  http://youtu.be/mzyDNpG07AU

  4. Great video , content and production ! 🙂

    I was hoping you could help me w/ an idea I have ? I'd like to add a variable speed switch to my bench grinder in order to run it at slower speeds. I've noticed many amp ratings for these switches and most will work fine on a 5 amp motor.

    Question:
    1.) Will I risk damaging the electric motor on my bench grinder?
    2.) If okay to add switch, should I try to match the amp level or would a higher amp rating switch be just fine?
    3.) If I get a variable speed bench grinder that supplies 2000rpm's to 3400rpm's , could I theoretically add another variable speed switch in order to run it even slower than the minimum 2000rpm's ?

    Thank you for your generous consideration,
    Steph

  5. came here looking for a brief explanation how electricity works and brief i got! I think the video was edited down a little too much, and further explanation for kids or dummies like me would have been more helpful

  6. Thanks for posting this video. I've been frustrated looking for motor kits for my kids. As a child in the early 90s I had a motor kit which was a bit simpler, using permanent magnets, but still winding the coils and putting it all together. Doesn't seem to be really available anymore. A quick eBay search of Remco turned up a lot of 8 of their kits, including the un-assembled motor kit, so its on its way for my kids Christmas. And as well, I'm going to 3D model the parts, which would allow much of it to be 3D printed, only the metal parts would need to machined or otherwise formed.

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