Re: Primary support -update
In a message dated 7/22/99 2:52:36 AM Pacific Daylight Time, tesla-at-pupman-dot-com
> I ditched wood altogether and went to HDPE and it's working great.
> The HDPE cuts and drills exceptionally well without any splintering
> or flaking. I did the first support out of 8 yesterday and it looks like
> it was done by a machine shop, so HDPE plastic is definately the
> way to go. My primary is 16 turns and I incorporated the strike rail
> as part of the support. Each support is 9 3/8" in length. I drilled 16
> holes about 1/2" down from the top and used a jig-saw to cut off
> the top of the holes, leaving me near perfect slots for the 1/4"
> tubing. The holes are a slightly tight fit and I have to push the tubing
> into each hole so it shouldn't be a problem with the tubing coming
> up and out while winding the rest of the primary.
> Based upon the responses I received, email and on both Tesla lists,
> I went to the flat primary and ditched using the 15 degree angle. With
> my 6" secondary, I shouldn't have any coupling problems using the
> flat primary.
> The HDPE isn't all the expensive - I ordered 8 pieces of 4" width, 1/2"
> thickness and 12" length for $32.00, and that included UPS delivery
> from an outfit called Professional Plastics, located in Commerce City,
> CO (303-287-7900). I would highly recomend them to anyone.
It sounds like this should work great. Good luck. For those who may be
looking for materials, several folks have said they buy the white 1/2" thick
HDPE cutting boards and cut them up for primary supports. My wife has one
that looks like it would work great. I wouldn't think they cost more than