Tweet
See Jim Koehler's Ms. He shows a photo of a shuttle that is
about 27" by about 1" that he uses for winding his toroidal
coils.
----- Original Message -----
From: "Benjamin R. Ginter"
To:
Sent: Saturday, June 24, 2000 7:02 PM
Subject: Fisher-Price Rock-A-Stack, helical-toroid coil, etc..
> The Proton Mag Forum
>
> Hello,
>
> Well, it's been a while since I last posted to the list. I
got a little
> sidetracked with coilguns and have been reading all sorts of
interesting
> information.
>
> I bought 1000ft of 28awg magnet wire from Mouser electronics
for about
> $12. I've been winding different types of coils, trying to
get the hang
> of winding without crossovers and whatnot.
>
> I'm a little stuck on how one can wind a toroidal coil from
a spool of
> wire without passing the entire spool of wire through the
center of the
> torus. I've seen approaches where a notch is cut in one
side of the torus
> to pass the wire through but the author of that post
suggested that it
> might be somewhat directional because of that.
>
> I bought the Fisher-Price Rock-A-Stack toy at Wal-Mart for
$3.94 (and
> there were at least a dozen more on the shelf). Winding a
coil over this
> form seems pretty daunting. Am I missing something? Do the
people who
> are using this toy as a form have some type of ingenious
winding jig?
>
> I'm also interested in which torus others are using out of
the toy.
> I've looked through the list archives and it isn't very
clear.
>
> One approach I've been considering is to take 1/4" fish tank
tubing and
> wind a single layer of turns around a length and then wrap
the completed
> coil in a helical fashion around the torus. I'm unsure what
the resulting
> field would look like or if there are any serious drawbacks
or benefits
> (other than ease of construction) of this design.
>
> Anyway, I've taken some pictures of the coils and
rock-a-stack to give you
> a better idea of what I'm talking about. Check them out at
> http://prospecting.kingman.az.us/protonmag.html and let me
know what you
> think of this approach.
>
> Best Regards,
>
> Ben
>
>
>
__________________________________________________ ____________
________
about 27" by about 1" that he uses for winding his toroidal
coils.
----- Original Message -----
From: "Benjamin R. Ginter"
To:
Sent: Saturday, June 24, 2000 7:02 PM
Subject: Fisher-Price Rock-A-Stack, helical-toroid coil, etc..
> The Proton Mag Forum
>
> Hello,
>
> Well, it's been a while since I last posted to the list. I
got a little
> sidetracked with coilguns and have been reading all sorts of
interesting
> information.
>
> I bought 1000ft of 28awg magnet wire from Mouser electronics
for about
> $12. I've been winding different types of coils, trying to
get the hang
> of winding without crossovers and whatnot.
>
> I'm a little stuck on how one can wind a toroidal coil from
a spool of
> wire without passing the entire spool of wire through the
center of the
> torus. I've seen approaches where a notch is cut in one
side of the torus
> to pass the wire through but the author of that post
suggested that it
> might be somewhat directional because of that.
>
> I bought the Fisher-Price Rock-A-Stack toy at Wal-Mart for
$3.94 (and
> there were at least a dozen more on the shelf). Winding a
coil over this
> form seems pretty daunting. Am I missing something? Do the
people who
> are using this toy as a form have some type of ingenious
winding jig?
>
> I'm also interested in which torus others are using out of
the toy.
> I've looked through the list archives and it isn't very
clear.
>
> One approach I've been considering is to take 1/4" fish tank
tubing and
> wind a single layer of turns around a length and then wrap
the completed
> coil in a helical fashion around the torus. I'm unsure what
the resulting
> field would look like or if there are any serious drawbacks
or benefits
> (other than ease of construction) of this design.
>
> Anyway, I've taken some pictures of the coils and
rock-a-stack to give you
> a better idea of what I'm talking about. Check them out at
> http://prospecting.kingman.az.us/protonmag.html and let me
know what you
> think of this approach.
>
> Best Regards,
>
> Ben
>
>
>
__________________________________________________ ____________
________