[modeleng] Re: An innocent abroad---Now brushes
- From: Allen Messer <al_messer@xxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Tue, 21 Dec 2004 10:13:52 -0800 (PST)
"...Not comprehending the size..."---yeah--right! I
thought that you were doing an itty bitty one like
Jesse has on one of his 7-1/2" locomotives, mounted on
the smokebox to run the lights, but I see you are more
abitious! Good luck!
Al
--- Tim Rickard <the_viffer@xxxxxxxxxxx> wrote:
> Hi Al
>
> I'm not certain i you are asking where Dremel
> brushes are available from (my
> guess is it would be cheaper to buy a me-too and
> take the brushes out rather
> than buy kosher Dremel brushes).
>
> On the other hand you could be suggesting that I use
> Dremel brushes in my
> dynamo. The size of the beast is I think not
> comprehended. The postman
> delivered and said with eyes popping out "It is
> [expletive deleted] heavy."
> He is right. It stands a couple of feet tall. The
> castings weigh in in
> excess of 30lbs. I reckon I can get a good 10lbs of
> copper on each pole and
> there is an armature to fit too. My provisional plan
> is to use the brushes
> from the car dynamo which will provide the armature.
> I plan to upload to
> www.alexandra.org.uk some pictures of prototypical
> brushes (there are
> usually some pictures there so have a look) but
> fitting more contemporary
> ones can follow later.
>
> I've a copy of vol 11 of ME which in those days of
> course was the ME "and
> Amateur Electrician" which seems to suggest that
> something nearer 20swg
> might be usual. I'll see if I can track down some
> other volumes or early
> 20th century books.
>
> Thanks to Andy for the motor winding idea. It had
> not occured to me. I first
> thought they'd not be able to wind rectangular poles
> but on thinking about
> it I don't see why they shouldn't. Maybe they'd have
> an idea about the size
> wire to use too.
>
>
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