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Taff

Four small screws' on a Dove bar

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Hi' Looking for some advice, on my Dove tail bars they come with four small screws two on each side of the bar.What i like to know what are they used for Thanks.Mark

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Probably for what's called orthogonal alignment, basically getting the scope aligned with mount axis.

Dave

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Posted (edited)

This should explain it:  (approx 3.19 minutes into tutorial)

 

Edited by carastro
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Thanks Dave for coming back.I will look it up on the net.Mark

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Thanks Carole for your help with the video.Mark

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Having said all that, I am pretty sure I have cone error, but have never been brave enough to make the adjustments, as I am sure I will just make it worse, so I tend to live with the cone error.  GoTOs work fine one side of the Meridian, not so on the other side.

Carole 

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Sorry for being a bit thick, but what is OTA short for?Mark

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OTA - Optical Tube Assembly. Basically referring to your telescope tube.

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Thanks Pankaj' Thanks for helping me out.Mark

 

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I never use those screes i just remove them

 joejaguar 

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It’s to correct for cone error, or rather reduce your cone error. I wouldn’t worry about it for now. If you are finding your GOTO accuracy is dire and exclude other causes, maybe revisit the topic. 
 

Enjoy!

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