Good Sam Club Open Roads Forum: Tech Issues: 1" to 3/8" thread adapter?
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 > 1" to 3/8" thread adapter?

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CharlesinGA

South of Atlanta, Georgia

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Posted: 01/29/23 08:35pm Link  |  Quote  |  Print  |  Notify Moderator

Docsource has the best idea, weld up something. 1"-14 is the axle thread on your trailer. Get a castellated axle nut, weld a 3/8 fender washer or two or a real thick washer you can find at the hardware store in the drawers of specialty hardware. Get a 3/8-24 self locking nut and put inside the big nut to secure the antenna.

Charles


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profdant139

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Posted: 01/31/23 05:00pm Link  |  Quote  |  Print  |  Notify Moderator

You've probably already thought of this, but you might be able to put together a "daisy chain" of reducing bushings. This is an example of one, but the price looks to be very high:


Bushing


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Ramblin' Ralph

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Posted: 02/02/23 08:02am Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the additional tips. I got a 1" pipe cap and took it to the machine shop yesterday. He will drill and tap the 3/8 hole. I'll post a pic of the complete antenna mount after I get the cap from the shop.


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Grit dog

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Posted: 02/02/23 08:34am Link  |  Quote  |  Print  |  Notify Moderator

So it’s NPT for the big side? What about the 3/8 thread?
If it’s NPT then you could just bush it down.
That pipe cap will only get maybe 2 or 3 full threads due to the thickness of material. Is that enough to hold it?


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Ramblin' Ralph

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Posted: 02/09/23 04:53pm Link  |  Quote  |  Print  |  Notify Moderator

Got the custom adapter from the machine shop to go from 1" to 3/8". Photo below is the full setup before it's mounted on the ladder rail. With my shaky hands I need another person to help. The lever arm is horizontal to lock the antenna rotation and vertical to allow antenna to be raised or lowered. Just hope I remember to lower it when investigating boondocking spots in trees. [emoticon]

BTW, I used the term "pipe cap" previously not knowing a real one uses a tapered thread. The threads in both cases here are "standard".

[image]

CA Traveler

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Posted: 02/10/23 08:03am Link  |  Quote  |  Print  |  Notify Moderator

Thans for posting the solution.

Another antenna solution is the use of a flag pole buddy type of mount for the antenna which allows the antenna to be raised/lowered while standing on the ground which eliminates any ladder climbing. I made my own from PVC pipe. The antenna can also be rotated manually from the ground.


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