[TCML] Considering a new coil build...

[DC Cox]

ADS is even better (Agricultural Drain System) tubing to use for large
toroids.  It comes in various sizes including 6",8",12", 16", 24", and 36".
It's black, internally corregated, and reasonably flexible for building
large toroids.  I used extra strong plastic wire ties to attach it to a
1/8"th inch interior aluminum plate (lots of hole drilling) to reinforce
it.  ADS.com.
Try a Tractor Supply or Blaine's Farm & Fleet.

Dr. Resonance




On Wed, Mar 25, 2009 at 12:55 PM, Scott Bogard <sdbogard at gmail.com> wrote:

> On 3/25/09, Travis Tabbal <travis at tabbal.net> wrote:
> Try making a toroid out of a big truck tire tube, very smooth, about
> 12*40 and will never ding.  Don't leave it out in the sun as it will
> expand and split your aluminum tape.  you may need to make bands out
> of duct tape before you inflate it so it stays a constant diameter
> though, and you may choose ot cover the whole thing in paper mache,
> though I have found this to be unnecessary.
> http://bogard.110mb.com/TCTopload.html
>
> Scott Bogard.
> >
> > For the toroid, going bigger means fabricating them. I have yet to make a
> > decent looking dryer duct toroid. Any tips there? Mine always end up
> wrinkly
> > and ugly. I'd like to build something of a show piece here. It won't be
> on
> > the level of the stuff Dr. Resonance and others on the list pull off, but
> I
> > want it to look nice and be reasonably durable, so that it can take small
> > hits while in storage. I might be able to do an open frame design like
> the
> > coil used in Mythbusters. Even that might push my metalworking skills
> > though. I'm a decent welder and such, but I'm still far better with woods
> > than metal.
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