I decided to go with acrylic for my primary support pieces, as wood can become
conductive with the high voltages and high frequencies the primary coil will
be seeing.
If you have access to a drill press, you can raise the base up so that your
slightly-larger-than-1/4" bit stays still and you guide the wood or acrylic
in by hand to make easy notches. Of course I discovered this method on the
last piece after going a little bananas on the thing using a high
speed rotary cutter
for the other pieces. I believe that 1/4" spacing between turns is fine if
you have plenty of turns.
Good luck and don't burn yourself with the hot glue ;)
Justin
> Original poster: "MalcolmTesla" <tesla@xxxxxxxxxxxxx>
>
> ----- Original Message -----
> From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Tuesday, December 13, 2005 8:26 PM
>
>
> > Original poster: "Rich" <rdjmgmt@xxxxxxxxxx>
> >
> > Malcolm , good looking start on your coil. With 1/4 soft tubing you
> > might use a couple more forms to help support and hold you
tube. You > can
> > "tack" things in place with a dab of hot melt glue as you go. The > next
> > time you make a form e-mail me direct and I will send you a
step by > step
> > way of making the coil forms that will hold the tube in place.
> >
> > Rich, from the middle of Missouri.
> > e-mail rdjmgmt@xxxxxxxxxx
>
> Hot glue hey. Hahahaha my wife will get a kick out of that. She
uses > it on
> just about everything. She's like the hot glue queen and I laugh
at her > now
> I have to go ask to use it LOL. It's a good idea though. I will
use > more
> supports next time too. I may end up remaking the primary
support > depending
> on how things pan out. If you have step by step instructions I'd love > to
> see them for ideas.
>
> Thanks
> Malcolm
>
>
> > Subject: Re: Capacitor Help
> >
> > Original poster: "MalcolmTesla" <tesla@xxxxxxxxxxxxx>
> >
> > I started making my primary. I'll give a link to a picture
below. > It's
> > made from 25 feet of 1/4" ice maker copper tubing. There are 7 full
> > turns
> > and a little more on the sides. As you can see in the pic the > overall
> > diameter is about 17 ~ 18" depending on where you measure. Inside
> > diameter
> > starts around 6 ~ 7".
> > The wire I've ordered for the secondary is 17 AWG (1.3 lbs on
the > way).
> > My
> > PVC is 4" diameter.
> > When winding my secondary should I pay more attention to
counting > turns
> > or
> > more attention as to how far up the PVC the windings go? Someone had
> > mentioned about 18", others have said 1300 to 1500 windings. Now > that
> > you
> > see my primary and have more information what do you guys recommend?
> > Thanks
> > :)
> >
> > Oh and this pic is after spending some time bending the
tubing, it's > not
> > fastened down yet, just loosely laying there so it looks a little
> > sloppy. I
> > must say I have great respect for you guys that have such perfect
> > looking
> > primary's. How on earth do you guys bend them up so neatly?
> >
> > http://www.v8-ranger.com/temp/tesla/7.jpg
> >
> > Thanks
> > Malcolm
> >
> >
> >
> >
>