Quote:
Originally Posted by kinetic
You need to make the worm stay centred and with zero
end thrust before you can even hope to quantify a meaningful
PE in arc sec. (error attributed to the worm anyway)
I hope you get to the bottom of it Stuart. Interesting stuff.
Steve
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Hi Steve,
The worm stays centered, or at least in the same place because the weight imbalance of the mount (slightly East heavy) keeps it there. There is a brass cap on the end of the Ovision worm, which may have a thrust bearing under it, you can just see it in the pics, I don't want to undo it. The worm will move longitudinally in the mount, but only if I lean on the counterweight bar.
I didn't need to get to the bottom of the problem, it's a common fault with the G11 mount, been solved long ago.
Cheers
Stuart