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Equipment Discussions >> ATM, Optics and DIY Forum

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calypsob
professor emeritus
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Reged: 04/20/13

Re: Wood and Pipe Equatorial Mount new [Re: Edward E]
      #6121416 - 10/06/13 10:21 PM

how are you going to adjust latitude?

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DavidinFL
super member
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Reged: 08/28/09

Loc: Navarre, FL
Re: Wood and Pipe Equatorial Mount new [Re: calypsob]
      #6121468 - 10/06/13 10:52 PM

Quote:

how are you going to adjust latitude?



My mount is set at 30 deg and my local latitude is ~30.5 deg. So, for casual viewing the mismatch isn't huge. Still, if I wanted to vary the latitude on the mount some I'd elongate the holes on the front bottom bolt of my wedge to allow some adjustment. I could put a large bolt in between the top and bottom of the wedge to provide fine adjustment if needed.


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DavidinFL
super member
*****

Reged: 08/28/09

Loc: Navarre, FL
Re: Wood and Pipe Equatorial Mount new [Re: DavidinFL]
      #6123831 - 10/07/13 11:32 PM

I made some improvements to the drive. I went by the hardware store and found a grounding pipe clamp. It has a machine screw coming out of the top of the clamp perpendicular to the direction the pipe would go. I replaced the machine screw with a bolt and cut a washer to act as the pin for the drive. I also attached the aluminum piece to the carriage more securely and took a little of the play out of the drive bolt.

This time tracking was much better. I was able to track Altair and Uranus after waiting a bit for the slack to be removed. The drive bolt and housing all flex some under load which is still causing me issues. I'll turn my attention to getting rid of the flex next.

Here's a picture of the drive with the upgrades.


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