[TowerTalk] Swinging gate antenna mount

[Grant Saviers]

I have a Rohn 65 design in CAD, never built it, went with rings instead. 
  Should have done the arms.  All 1/4" HRS steel plate, standard angles 
and channel, plus 2" NPT pipe, although other tube/pipe choices are 
easy.  Different leg diameters depend on the u-bolt size (minor hole 
location change needed). Designed for hot dip galvanizing.  I designed 
for two antennas for up to 20' of pipe between top bearing and rotator. 
Or one antenna on a short pivot "mast". Uses a standard mount rotator at 
the bottom (my plan was Orion 2800) and a UHMW bearing at the top.  Make 
the plates on a laser or waterjet cutter.  Weld it up and HDG.

Reply off list and I well send 3D pdf's to review. Enough interest and 
some weld shop might make them.  Everything should UPS except the pipe, 
buy it locally.  Adding tabs and slots to the top and bottom supports 
for self fixturing of the welding would be nice.

Grant KZ1W

On 6/5/2020 11:46, Jon Zaimes via TowerTalk wrote:
> 
> Try here: http://www.w9iix.com/ii00012.htm
> 
> Jon P. Zaimes, AA1K
> Tower climber for hire
> Website: aa1k.us
> Cell: 302-632-2353
> Email: jz73 at verizon.net
> 
> Hug your favorite tower every day, and always stay connected to it
> On Friday, June 5, 2020 mike stokes <mike9v at gmail.com> wrote:
> I am looking for one as well.  Please reply to the list.
> 
> 73
> Mike
> KK9V
> 
> On Fri, Jun 5, 2020 at 2:20 PM Ignacy Misztal <no9e at arrl.net> wrote:
> 
>> Does anybody make swinging gate mounts? I need one for 45G.
>> Ignacy, NO9E
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