John, a broken boom will not be perfectly round at the fracture point. You
may well need the extra space the .048 material will provide.
I suggest you use the available .048" material, cut a couple of slots in
the ends and secure with small hose clamps.
The increased diameter will be stronger than the original design.
73,
Gerald K5GW
In a message dated 4/28/2011 7:31:42 A.M. Central Daylight Time,
john@carltonhouse.eclipse.co.uk writes:
Hello all
A friend has asked if I can mend his 23cms aerial from M Squared. It was
dropped and the boom has fractured just beyond the joiner, which is a 7/8"
diameter sleeve 6 inches long.
What I hope to do is to provide a longer sleeve, which will go over the
original join and the fracture.
The material needed is a 10 to 12 inch length of 7/8" OD aluminium tube,
with a wall thickness of 0.058". The wall thickness is important, so that
it
slides snugly over the boom. The nearest I can get here is 0.048" which
will
be a sloppy fit.
I can see that DX Engineering has exactly what I want, but there's a $20
minimum order and $33 carriage to the UK. So, I know it's a long shot, but
does anyone here have a suitable offcut ? I can pay with Paypal.
Many thanks
John G4ZTR
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