Re: sync motor mod

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-uswest-dot-net>" <jimlux-at-earthlink-dot-net>

The aluminum is an essential part of the rotor.  It is the actual conductor
in which a current flows, forming a magnetic field, against which the
magnetic field of the stator (i.e. the windings) works.  They put the
aluminum into the rotor by a really nifty process where they take the iron
laminations and squish it into molten aluminum where it cools after flowing
into the passages (which also makes it REAL hard to drill out, although acid
or sodium hydroxide will dissolve it out after a fashion).

You'll occasionally also see "wound rotor" induction motors, where the
conductors on the rotor are actually copper windings.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, February 21, 2001 5:04 PM
Subject: sync motor mod


> Original poster: "Mike Novak by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<acmnovak-at-msn-dot-com>
>
>    Hi All,
> After seeing that teletype sync motor on a post easrlier this week I got
to
> thinking... "couldn't one simply drill strait down the sides of an
armature
> to create poles". The aluminum parts on the teletype motor are simply just
> filler material right?
> It would be much simpler/cheaper to drill a lateral hole down your motor
> armature.
> Just an idea...
>
>
> -Mike Novak
>
>
>
>
>