After continuing problems with mast slippage using the Orion 2800 I considered
the same idea and took the Orion mast clamp to a machne shop to see if they
could bore/hone it out to provide more clamping surface area. The said they
could not do it satisfactoriy and suggeested I look into having a custom clamp
made. I ended up ordering one of K7NV's mast clamps and no probems since.
https://www.k7nv.com/proppitch/id35.htm
<https://www.k7nv.com/proppitch/id35.htm>
Bob
K6UJ
> On Jul 29, 2020, at 8:35 AM, k7lxc--- via TowerTalk
> <towertalk@contesting.com> wrote:
>
> Howdy, TowerTalkians -
> IMO the Orion mast clamp is a very poor design and has 2 fatal flaws.
> The first being that the finish is dimpled and the dimples get flattened down
> over time and the clamp loses its grip. The second flaw is that the teeth
> only provide a small fraction of a square inch of actual clamping area - 0.1
> sq.in.? - and the teeth get ground down by mast movement hence it loosens up
> no matter how much you tighten it. I've sold much superior after market
> clamps in the past but can't get my supplier to make more. My question
> is can you hone the existing clamp for a better fit? IOW can it be bored for
> a 2" or 3" mast? It'd be something like boring a cylinder to a specified
> size. If the teeth were filed down, there would be much MORE clamping area
> and thus the clamp would actually hold the mast. In my experience I've only
> talked to a couple of owners who claimed theirs didn't slip and ones that
> I've installed seemingly always slipped eventually. Cheers,Steve K7LXC
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