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Re: New toroid (fwd)



Original poster: Tesla List Moderator <mod1-at-poodle.pupman-dot-com>



---------- Forwarded message ----------
Date: Thu, 19 Sep 2002 15:19:05 +0000
From: Mark W. Stolz <mark_w_stolz-at-hotmail-dot-com>
To: tesla-at-pupman-dot-com
Subject: Re: New toroid

Ed,

I find it best to minimally extend the ducting.  I only extend it enough to 
complete the circle and then attach the ends with about 4 dabs of hot glue.  
Then I expand it evenly little by little until the center of the toroid is 
big enough to accept the hub.
http://users2.ev1-dot-net/~nmyreality/tesla/topload/toroid.html

This saves money on replacement pieces of ducting too. ;-)

Mark Stolz
Houston, TX


>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: New toroid
>Date: Wed, 18 Sep 2002 18:22:29 -0600
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>Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><Esondrmn-at-aol-dot-com>
>
>Well, I made my first toroid out of semi-rigid aluminum duct pipe 3"
>diameter.  For all of you with real nice looking toroids made out of this
>stuff, I congratulate you.  I used 9" metal pie pans for the center, using
>three pop rivets to hold them together.  I stretched out the ducting and 
>was
>surprised to find it about as thick as aluminum foil.  Somewhat hard to 
>work
>with and difficult not to damage.  The material is segmented in groups of
>four segments, then a space, four segments, etc.  I tried to cut the ends
>smooth between two segments so I could join the ends and have even groups 
>of
>four segments.  Then I realized the material is one continuous spiral and 
>it
>is impossible to cut flat on the ends.  I ended up cutting it with 
>scissors,
>not very well, then making short cuts in one end all the way around, pushed
>this into the other end and put a wrap of aluminum tape around it.  Now I
>placed the pie pan center on the table and tried to re-compress the thing 
>so
>it would fit tight around the pie pans.  Now it wants to kink up into a 
>snake
>because of the spiral manufacturing technique.  So I took the tape off,
>compressed it to fit and eventually got it taped to the pie pans without
>looking too terrible.
>
>Is there any better material to use?  Something made with aluminum that is
>maybe two or three times as thick?  Is it all spiral wound?
>
>Thanks, Ed Sonderman




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