lil help please

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Jimbo07031982@xxxxxxx 

i am getting ready to build my 2nd t.c and was wondering what is the 
best way to form a primary coil (the first one i every built was just 
literally thrown together the primary was formed by hand and looked 
like crap turned out it was crap too) is there any tools that would 
help in the forming of this to make a nice uniform coil and what 
would be the best thing ti use (the first one i built i used 3/8 inch 
copper tubing should i go bigger or smaller) i do have some 
electronics background but not much and i am horrible at math because 
of this i am having some trouble designing and building a good coil 
(if there is anyone willing to help through this step by step please 
let me know of list at 
<mailto:jimbo07031982@xxxxxxx>jimbo07031982@xxxxxxx) Also I hope to 
be in FL for the 2005 teslathon I am moving down just as soon as I 
finish taking care of some things up here in Ohio. Hopefully I can 
get some good pointer's and idea's if I am able to make. thanks a 
bunch. JIMBO

p.s I will be using a 6kv 30 ma nst to power the whole thing and have 
6 400pf 30kv caps in parallel and are ceramic doorknob style I do 
have a variac that I use that goes up to 140v ac.
also the first coil i built i connected the primary and secendary 
coils together would this cause a lose in performance and i did not 
seal the ends of the sec, coil at all like i said i just threw the 
thing together to see if a could get something to work altogether i 
think i spent $50 building the whole thing besides the obvious flaws 
with the sec. what can i do to get spark's bigger then 4-6 inch long 
seeing as that is the biggest i was able to get.(do i need more v or 
is what i have sufficent i am aiming to get at least 20-24 inch 
sparks out of my next coil