So, you are tacitly agreeing that a motor with brushes is a better bet?
What is the likelihood that a brushless motor will fail? Thanks, John
On Sat, Jul 11, 2009 at 7:57 PM, Matthew Geier <matthew@acfr.
>
>
> John Delia wrote:
> > Definitely another point to consider. Thanks, John
> >
> >
> >> Minor point - there are in fact 2 generations of Etek motor - the
> original
> >> was brushed - the later brushless. Some of the brushed versions seem to
> >> still be around and there are now also larger "clones" available of that
> >> model.
> >>
> There are number of DC brushed variants of the Lynch permanent magnet
> motor around. The Etek was just one of a number. I'm using a 'Perm 132'
> based on the same Lynch pattern.
>
> Cedric Lynch seems to have been a far better engineer than businessman
> (as usual :-) and several manufacturers similar motors for which Lynch
> doesn't appear get any license fees for - there seems to be some
> controversy over this. His parting with Lemo who owned the IP on the
> 'Lynch Motor' doesn't seem to have been on good terms - Agni's 'who'
> page says his parting with Lemco ended up in court, and Lemco
> subsequently went into Liquidation. (But not before transfering it's IP
> assets (Lynch's motor design) to another company, thus 'protecting' that
> 'asset' from the liquidators)
>
> The Eteks were licensed from Lemco.
>
> The Agni motor seems to be even more efficient that the Etek/Lemco -
> but it's still a brushed DC motor, not one of these 'new age' 3 phase AC
> jobs like the 'brushless DC' Mars for example.
>
>
>
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