Re: top load smoothness (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 12 Jul 2007 19:17:29 +0000
From: ameen_ghavam@xxxxxxxxxxx
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: top load smoothness (fwd)

ya also want to make sure you use the latex grout ase stuff. I used water
and the grout didn't hold on too well to the ducting. When sanding it, if
you want to be super picky, sand it down so that the rims of the aluminum
ducting just start to show. This indicates a perfect toroid. Cover it in
3-4 coats of polyurethane to get it smooth as glass, then patiently tape
it.

-------------- Original message -------------- 
From: "Tesla list" <tesla@xxxxxxxxxx> 

> 
> ---------- Forwarded message ---------- 
> Date: Wed, 11 Jul 2007 18:15:51 -0700 
> From: Barton B. Anderson 
> To: Tesla list 
> Subject: Re: top load smoothness (fwd) 
> 
> Yes, fill in the cracks. Haven't tried bondo, but simple plaster of 
> paris products are low cost and easy to work with. Just add water. The 
> time is about 5 minutes to apply and dry over night. Do a few areas over 
> a few days until it's as big and as roughly smooth as your crafty hands 
> can lay it down. It's really not that hard. Sanding is messy, but very easy. 
> 
> If you think your way through it (don't hurry it), the end result is 
> better than any Al tape over flex duct (even when smoothed with a 
> spoon). The end result can be as good as a spun toroid - no kidding (and 
> I've got both to compare). But in the end, do what your comfortable 
> with. It's not really a big deal regardless of what you use. 
> 
> Bart 
> 
> Tesla list wrote: 
> 
> >---------- Forwarded message ---------- 
> >Date: Wed, 11 Jul 2007 01:52:18 +0000 
> >From: ameen_ghavam@xxxxxxxxxxx 
> >To: Tesla list 
> >Subject: Re: top load smoothness (fwd) 
> > 
> >You can also use grout to fill in all the cracks, varnish it, then cover 
> >it with strips of aluminum tape. Time consuming to say the least however. 
> > 
> >-------------- Original message -------------- 
> >From: "Tesla list" 
> > 
> > 
> > 
> >>---------- Forwarded message ---------- 
> >>Date: Tue, 10 Jul 2007 19:50:22 -0500 
> >>From: Drake Schutt 
> >>To: Tesla list 
> >>Subject: Re: top load smoothness (fwd) 
> >> 
> >>Scott- with my first coil I tried to cover regular (not flex duct) ducting 
> >>in bondo to try and make a smooth toroid and that was an utter waste of 
> >>time. Without covering flex ducting in fiberglass or something, the 
> >>cheapest and least time consuming way to make a smooth surface is to use 
> >>flex ducting covered with aluminum tape and then smooth it down with a 
> >>spoon. I just did a couple like this recently and they are VERY smooth. 
> >> 
> >>Drake 
> >> 
> >>On 7/5/07, Tesla list wrote: 
> >> 
> >> 
> >>>---------- Forwarded message ---------- 
> >>>Date: Thu, 5 Jul 2007 18:40:30 -0700 (PDT) 
> >>>From: G Hunter 
> >>>To: Tesla list 
> >>>Subject: Re: top load smoothness (fwd) 
> >>> 
> >>> 
> >>> 
> >>>>In a message dated 7/5/2007 3:44:33 P.M. US Eastern 
> >>>>Standard Time, 
> >>>>tesla@xxxxxxxxxx writes: 
> >>>> 
> >>>>Hey guys, 
> >>>>Concerning the surface of top loads, does it make 
> >>>>any significant 
> >>>>difference in overall performance whether the 
> >>>>surface is very smooth or not 
> >>>>(ex. spun aluminum toroid vs. dryer duct toroid). 
> >>>>If one is going for 
> >>>>absolute maximum spark length (for his budget) would 
> >>>>it be worth his while 
> >>>>to cover his corrugated toroids with something like 
> >>>>wood putty or paper 
> >>>>mache and cover it with aluminum tape, or just leave 
> >>>>it alone. Thanks. 
> >>>>Scott Bogard. 
> >>>> 
> >>>> 
> >>>> 
> >>>Another alternative is paper mache. Obtain a vinyl 
> >>>swim ring pool toy. 5" x 20" is a popular size for 
> >>>small children. 9" x 38" is a common adult size. 
> >>>Inflate the swim toy as hard as possible using lung 
> >>>power and cover it with several layers of paper mache. 
> >>>It looks all wrinkly when first covered, but if the 
> >>>traditional recipe of newspaper, white glue, and water 
> >>>is used, something cool happens. As the paper dries, 
> >>>it shinks, forming a smooth, tight skin. Allow it to 
> >>>dry completely, then toughen the shell with many coats 
> >>>of polyurethane varnish. The paper mache soaks up 
> >>>lots of varnish--be prepared to use a whole can. 
> >>>After the varnish is fully dry, wrap the form in 
> >>>aluminum duct tape and rub it down good with the back 
> >>>of a large spoon. With patient rubbing, the aluminum 
> >>>tape covering will take on a burnished, chrome-like 
> >>>appearance. This kind of toroid looks much smoother 
> >>>than anything made from corrugated ducting and it is 
> >>>much cheaper than spun Al. Takes lots of time 
> >>>though--very tedious. 
> >>> 
> >>>Cheers, 
> >>> 
> >>>Greg 
> >>> 
> >>> 
> >>> 
> >>> 
> >>> 
> >>> 
> >>> 
> >>______________________________________________________________________________ 
> __ 
> >>____ 
> >> 
> >> 
> >>>Park yourself in front of a world of choices in alternative vehicles. 
> >>>Visit the Yahoo! Auto Green Center. 
> >>>http://autos.yahoo.com/green_center/ 
> >>> 
> >>> 
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> >>> 
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