RE: Need Help with 15 degree Primary Support System
I would recommend making the supports out of Lexan, much easier to drill and
machine than acrylic (Plexiglass) or wood. Pictures and descriptions are at
Definitely start winding at the inside.
Regards, Gary Lau
Waltham, MA USA
I'm soliciting any tips, suggestions or hints on building a
system for a 15 degree, 16 turn primary using 1/4" copper
for my 15kv 60ma 6" secondary system. Spacing is 1/4"
turns OD, and 1/2" center-to-center. I derived the 16 turn
data input into Wintesla program.
I had initially tried putting in 8 wooden supports at
than 8 inches in length to give me the 16 turns out of 1x4
the wood. I used 1/4" coax cable naildowns spacely evenly
along the top of the wood but the entire affair ended up as
disaster and I had to remove everything before I actually
whole length of tubing in. The coax supports weren't deep
to hold the pipe in place when I tried a small length of
them, as the tubing kept popping up and out. I used silicone
glue to fasten the cable holdowns to the top of the wood but
proved to be a mistake. I then tried putting small brad
the hole provided in the coax naildowns but they split the
it also gave me a concern for providing a path to promote
from turn to turn of the tubing.
I ended up in frustration removing all the supports to start
I know there HAS to be a better method. I would appreciate
any help from some of you old vet coilers on this.
I also did try cutting notches into the wood 1/4" to make
u-shaped channels for the tubing but I couldn't get an even
depth and it kept splitting the wood. Apparently using a 1x4
isn't necessarily a good choice of wood.
Also, I need to know is it better to start the winding of
tubing from inside to outside?