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Old 11-10-2018, 11:20 AM
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mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 5,006
There is another more radical solution to this - a totally new rocker box and alt bearings.

Anything we try to do retrospectively is only stop-gap and still won't be a fix-it-like-it-should-work. No way of achieving this now.

You can still salvage the scope, but it will mean sucking it up and making a new rocker box and bearings that WILL suit the OTA. In a way it's making the rocker box and alt bearings in the order they should have been done - after the OTA was finished.

Larger diameter alt bearings will solve the issue with the clamp location, make it easier to match the alt pivot point to that of the COG of the scope, and still maintain a low profile rocker box. And it will also improve the balance of the scope when you change from small to large eyepieces and balance issues from a wet shroud (which is not mandatory and there are other alternatives).

You will end up with a scope that will work because you won't be needing to be second guessing everything you do when you use it. Piss around trying to fix things now and you will never really be able to relax while using it. There's just too many things going on with your scope right now.

Oh, and if you haven't done so already, rebuilding the rocker box will give you the chance to design for digital setting circle encoders from the start. I do this with all the scopes I design whether they have encoders fitted from the start or later on.

Alex.
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