17" CDK and Equatorial Mounting
Posted 02 August 2012 - 02:02 AM
I've been working on this for a few weeks already and figured it was time to start to create some kind of work log on here.
I am building a 17" CDK f/6.8 (though I will be buying the optics i.e. mirrors and correctors) and equatorial mounting for it.
All the parts for the telescope have been made already and I have started assembly already. Though I am a little behind on the work log so I will be posting quite a few updates within the next few days!
The assembly should be finished soon, though since I have not ordered the mirrors yet (still saving up) the telescope will be waiting a few months before it sees a light. That being said, I am finishing up the design of the equatorial mounting and should be able to start machining parts shortly. The mount will be tested before the telescope as I have already ordered the worms/gears/motors. This should keep me busy till at least I have the resources for the optics!
I will be keeping my blog updated as I progress.
Here's the first blog entry: http://cooledpix.com...7-introduction/
and a couple pictures of the CAD work.
Feel free to ask questions about the design. I will populate my entries with as much information as I can.
Posted 02 August 2012 - 06:11 AM
Also, how are you able to determine that the center ring where the truss attaches will be stiff enough? I see it is cored out there. Did you do any FEA on it?
I will be following your build with interest. Thanks for posting.
Posted 02 August 2012 - 11:28 AM
I am not sure where Planewave is getting the optics. But yes it is the same diameter and f ratio.
Yes, the middle cell openings were checked with a static analysis of this middle cell.
Posted 02 August 2012 - 03:07 PM
Posted 02 August 2012 - 10:32 PM
Posted 03 August 2012 - 01:20 AM
I'll post some optical data soon.
Adding a picture of the parts (they're not all in there) after they came back from anodizing.
The tube assembly in the middle is the corrector/baffle assembly.
Posted 03 August 2012 - 01:36 PM
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Posted 07 August 2012 - 10:17 PM