That is correct regarding metric tubing not telescoping. It is likely the
reason OptiBeam bolts the inner tube to one side of the outer tube using a
S.H.C.S.
Most larger heavier wall 6061-T6 tubing in the US does also not telescope.
It is typically available extruded (which has big tolerances) with a .125
wall. I have only seen the .120 wall at DX Engineering, I am not sure
where they are getting it from.
John KK9A
To: Stan Stockton <wa5rtg@gmail.com>
Subject: Re: [TowerTalk] [Bulk] Re: [Bulk] Re: Shorty Forty Hose Clamp
thread
From: Grant Saviers <grants2@pacbell.net>
Date: Thu, 13 Aug 2015 08:50:27 -0700
One other thought - if I understand correctly, metric tubing does not
telescope as tightly as US 0.058/0.120" wall. So squeezing the inner tube
to the far side is a way to compensate for the extra slop. A logical
solution for Optibeam, but I think a bad idea if 0.058/0.120 wall tubing
is available.
Grant KZ1W
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