Re: [CAD_CAM_EDM_DRO] Re: Spindle motors

Graham Stabler wrote:

> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Hugh Prescott <hugh@...> wrote:
>
>
>> Some of the amp capacity (several hundred amps) appear to be a
>>
> caculated
>
>> amp flow based on the input voltage and the on resistance of the power
>> FET's and no correction for the battery impedance..
>>
>> No way does 13 gauge wire carry 300 amps for very long.
>>
>
>
> Its just a component in a system, if you know the controller can carry
> Xamps you know your limiting factors are elsewhere. I don't think
> they are trying to say that a 300A controller will pull 300A out of a
> battery that can't provide it.
>
> Graham

Agreed

The manufacture is stating a number based on components and standard
electrical design rules.

however when dealing with the usual intelligence level of the average
RC car user the numbers are absolute as in "my car will go twice as fast
if I just change the speed controller from 200 to a 400 amp unit.

In the last 39 plus years dealing with the public and their hobbies I
have noticed a wide spectrum of personalities in the various hobby fields.

Airplane fliers extroverts love to show off, talk with their hands,
smart and think fast.
Train people introverts, a world of their own in their basement
Gamers, high math and logic skills, creative imagination.
RC car/trucks beer drinking, red neck frustrated stock car racers most
drive trashed pickups
Rockets scientists type.
There are exceptions GRIN

Personally I am an airplane driver, any size and a retired biomedical
engineer in the hight power medical X-Ray / imaging field. "Some
electrical knowledge"

Hugh