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Question Adjusting torque on the Linear

  • Guillaume
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23 Jun 2020 09:18 #330 by Guillaume
Adjusting torque on the Linear was created by Guillaume
Dear,

I'd like to know who to determine the best torque value.
I was perfectly running with a small T150 and 70% torque (about 8kg).
Now I have a T250 and about 16kg. Well balanced, the mount does not have any issue pointing in any directions but my guiding is not so good (I may have a lot of things to improve).
I'm guiding with an OAG at 1000mm focal lengh.
I was asking myself :
- Does the torque need to be increased ?
- Does tracking adjustment will help me ? (didn't find explanation about how to chose de value)

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  • Stefano82
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24 Jun 2020 11:44 #331 by Stefano82
Replied by Stefano82 on topic Adjusting torque on the Linear
Dear Guillaume

Increasing the Torque value beyond the limit indicated at page 32 of the StarGo User Manual, doesn’t improve the tracking and may stress the motors, so this operation it is not suggested.

If a good balancing has been performed, check the focal length ratio between the main telescope and the guide telescope.

In order to achieve a good tracking, the guide telescope focal length should not be too short compared to the main telescope focal length.

Please, to better understand how to help you improve the tracking, let us know your main telescope focal length.

If the mount is well balanced and the focal length between the two scopes have the proper ratio, the tracking adjust may help you. You can find the explanation of this tool at page 28 of the StarGo User Manual, it could be also helpful to read the following topic:

www.avalon-instruments.com/forum/welcome...-tracking-adjust#189

Feel free to ask for any further information

Kind regards

Stefano
Avalon Instruments Team

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  • Guillaume
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25 Jun 2020 08:04 #335 by Guillaume
Replied by Guillaume on topic Adjusting torque on the Linear
Dear Stefano,

Thanks for the reply.
I guide with an OAG so focal lenght equal imaging focal: 1000mm.
My sampling is a bit more precise en guiding because I use a 2.9um/pix sensor for guiding and a 3.8um/pix for imaging.

I'll carefully read the manual. Thanks.

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25 Jun 2020 21:49 #336 by ken.self
Replied by ken.self on topic Adjusting torque on the Linear
When you say your guiding is not good, can you be more specific?

-- Ken
Avalon M-Uno; GSO RC8; ASI1600; Optec focuser; Aaeon UP/Ubuntu/INDI

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