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Equipment Discussions >> Reflectors

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kind
member


Reged: 07/07/13

Re: My 6" f/8 Dob - It's a pile of trash new [Re: GeneT]
      #5975362 - 07/17/13 01:22 AM

very impressive. less stuff in land fills is a great thing :P

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Ed D
Carpal Tunnel
*****

Reged: 04/30/10

Loc: Sunny South Florida
Re: My 6" f/8 Dob - It's a pile of trash new [Re: kind]
      #5992573 - 07/27/13 08:33 AM Attachment (15 downloads)

I finally got the scope out under the stars for initial testing.

FIRST LIGHT: Tempestuous at best. A couple of days ago I wanted to get the mirrors in it and try it out. In my haste I did a few things wrong, including the secondary mounting and horrendous collimation. However, I did see that my ideas and the project would work as designed and intended.

SECOND CHANCE AT A FIRST IMPRESSION: Last night I took my time and worked on the secondary/focuser assembly, collimation, etc. I also assembled it pretty much how the finished product will end up. I'm not going to elaborate here as I plan to write an article about it.

So, how was my second chance at a first impression? SWEEET!!! I can't believe how well everything is coming together. The views are super, no other way I can describe it. The Alt-Az motions are buttery smooth, and the scope is very easy to set up, use and move around. I spent about 2hr last night looking around the Sagittarius region at globs and open clusters, bright stars, star fields, etc.

Last night my apprehensions and uncertainty vanished. Everything is working out at least as well as I had planned, if not better. I still have work left to do, but I think the finished product is about a month or so away. The attached picture shows the scope pretty much as I used it last night, except I had a temporary light shield across from the focuser. Also, that's not a tool caddy in the back. I ate the bananas so I had to improvise counterweights for my testing.

Ed D


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Jeff Phinney
super member


Reged: 02/20/13

Loc: CA
Re: My 6" f/8 Dob - It's a pile of trash new [Re: Ed D]
      #5992783 - 07/27/13 11:03 AM

Quote:

Also, that's not a tool caddy in the back. I ate the bananas so I had to improvise counterweights for my testing.





I see you moved up from bananas to throwin' a wrench in the works.

BTW, great build, looks fantastic and enjoyable. Any idea as to the total capital outlay?


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Sean Cunneen
Let Me Think
*****

Reged: 08/01/07

Loc: Blue Island Illinois
Re: My 6" f/8 Dob - It's a pile of trash new [Re: GeneT]
      #5993017 - 07/27/13 01:23 PM

Great build! There needs to be more of this style in this hobby. There is entirely too much attention put on crazy CNC stuff too often. Clyde would be proud!

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AngryHandyman
sage


Reged: 06/28/13

Loc: Nanaimo, BC
Re: My 6" f/8 Dob - It's a pile of trash new [Re: Sean Cunneen]
      #5993164 - 07/27/13 03:06 PM

That looks so good! Looking forward to the article.

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Deep13
Carpal Tunnel
*****

Reged: 01/25/05

Loc: NE Ohio
Re: My 6" f/8 Dob - It's a pile of trash new [Re: AngryHandyman]
      #5993352 - 07/27/13 05:42 PM

Best trash heap ever.

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epdreher
sage


Reged: 06/12/11

Loc: Republic of Texas
Re: My 6" f/8 Dob - It's a pile of trash new [Re: azure1961p]
      #5993493 - 07/27/13 07:26 PM

Quote:

Beautifully done. The ingenuity is indeed apparent.




This. In spades. Excellent!


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Ed D
Carpal Tunnel
*****

Reged: 04/30/10

Loc: Sunny South Florida
Re: My 6" f/8 Dob - It's a pile of trash new [Re: Jeff Phinney]
      #5993509 - 07/27/13 07:39 PM

Quote:

Any idea as to the total capital outlay?




Yes, $65.19 so far. I have been keeping all the receipts. I only added up items like the wood dowels and finish, as well as items specifically needed for the build, like foam paint brushes. I did not include the cost of items such as the plywood circular saw blades or the miter box because those are things I needed to get anyway. BTW, the two most expensive items were the cans of polyurethane finish and the 1.25" wood dowel for the struts, which alone are more than half of the cash outlay. Everything else was either salvaged or surplus, and the mirrors are the ones I took out of my XT-6.

Ed D


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