> Ah! They want use to go back to cavemen, no Pics, no cars, no bicycles,
> no shoes - ouch, there is a couple of inches of snow on the ground. ~:
>
> Marcel Duchamp wrote:
>> Bob Axtell wrote:
>>
>>
>>> I owned an electric motorcycle when I was a young engineer. I drove it
>>> 2miles each way to work
>>> at Datapoint  Corp in San Antonio, TX. It was great fun, but was only
>>> 1HP PM motor. To adjust
>>> speed, it switched in 12V or 24V batteries. Very primitive.
>>>
>>> One could do wonderful things today with the idea...
>>>
>>> --Bob A
>>>
>>
>> Not to hijack the thread... but Bob, were you there at the time of the
>> 8008 beginning?


A friend has an electric bicycle conversion. It has friction drive on the
front wheel. A small permanent magnet motor is on each side of the wheel.
For fast, the motors are in parallel. For slow, they are in series. This
also does regenerative braking if you put it in "slow" when going down a
hill.

As a kid, I built an "electric car" out of wood with wagon wheels. It had
chain drive from a car starter to one of the wagon wheels. I ended up
having to double the wheels on the back due to the weight of the battery
and the torque of the motor. My speed control consisted of reaching behind
to clip a big jumper cable type clip on the battery or remove it.

Harold



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