Roger
Thanks, I had the same idea but I am concerned about the point pressure at the end of the
scaffold pole on the inside of the Spiderpole, since on raising and lowering that would
be at its extreme. I came to the conclusion of using a "soft" buffer to
spread the contact pressure. I didn't think of wood, perhaps pvc drain pipe or the like
but I'll look at wood since it can be tailored to fit and I'm only doing it once. The
falling derrick is best for me, so conquering this detail is important. What I will
never do is drill the f/g pole - that's a quick way to wasting a good pole. This will be
a very windy location, so, 3 x 4 guys is planned. I know 2 x 4 guys works for the 18m on
its own.
David G3UNA/G6CP
On 07 December 2020 at 11:35 Roger Kennedy <roger@wessexproductions.co.uk>
wrote:
Well some telescopic fibreglass masts will fit over an alloy Scaffold Pole,
so you just slide it over and fit a Jubilee Clip a couple of feet down.
Otherwise, it's down to buying some tubing to act as a joining sleeve . . .
where the inside diameters are different I have known people use a length of
hardwood, and shave each half to the correct inside diameter of the metal
and fibreglass poles.
73 Roger G3YRO
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Further to that scheme, is there a sound way to join a Spider pole to a
scaffold pole? The cost change from 18m Spider to the next sizes up is quite
a jump, but I've often thought an alloy scaffold pole at the base would be
worth the effort if I had a decent way to join them. I can raise the 18m
Spider pole using a falling derrick on my own and a rigid extension
underneath looks doable with help.
David G3UNA/G6CP
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