If you only have access to basic hand tools (ie. welding a topload with
rings is not an option), you could try using aluminum flashing tape or
aluminum foil tape to coat your assembly. This is how I usually do it and
it tends to work quite well and end up smooth. If you wrap the entire
surface of the ducting, as well as the circle where it joins itself, you
can smooth everything out quite nicely. A metal spoon is a helpful tool for
this.
On Wed, Apr 1, 2015 at 7:53 AM, Timothy Gilmore <tdg8934@xxxxxxxxx> wrote:
> Now that I have my mid sized Tesla coil working with 3 feet averaging and
> some over 4 feet using 2 15kv 60mA NSTs... I would like to focus on
> building a bigger Toroid top load. Currently I'm using 6" dryer ducting
> with foil pizza pans in the middle. As most dryer ducting designs go, it's
> not "smooth" and I get a lot of side sparks. I'm thinking if I can build
> one with 8" dryer ducting or larger and figure out a way to make it smooth
> it should create less but longer thicker sparks.
>
> What are coilers doing about this problem? I'm not going to spend $400+ for
> a machined one that's smaller. I'm limited on tools with a hacksaw and
> electric drill for the moment. If dryer ducting is to be used, what are you
> guys using to join the ends together (just tape)?
>
> Thanks,
>
> Tim
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla