[Home][2015 Index] Re: [TCML] Making a larger toroid ideas [Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] Making a larger toroid ideas



I once made a big, smooth toroid out of a vinyl swimming pool float.  I inflated it as hard as I dared and covered it with several layers of paper mache followed by many strips of aluminum HVAC tape.  I then polished it to a very smooth, chrome-like finish.  It worked like a champ on my 5kVA coil.  It took a lot of time and effort, but it was very cheap and much smoother than dryer duct.  If memory serves me it had a chord of 9" and a diameter of 30".  It has held up well too.  It is still gathering dust out in my barn.  No dents yet!

Cheers,

Greg
 

On Wednesday, April 1, 2015 7:12 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