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This one I completed a couple of years ago. This was my first telescope building project. Beacuse of all the cutouts and fancy finish it took me almost 5 months to complete. I have to credit my wife for encouraging me to build and put quality components in it. I had been doing a cost compairson between lots of cheap telescope mirrors and I was showing her the options one day when she said, "Why are you fooling around with this cheap stuff when you should just buy quality and get something you will be happy with." What a woman!

The next day I ordered a premium mirror that cost more than most imported 8" scopes by itself. I have been happy with it from day one. I get lots of compliments on the wood working and almost just as many on the optics. Nothing stands out like quality.

The details of the construction can be found here: http://www.cloudynights.com/item.php?item_id=1096

Basically the wood is a combination of 3/4" Home Depot birtch ply and then a sheet of baltic birtch ply. Baltic birtch is the way to go, I will never use anything else. The tube is a 10" Sonatube from the local contractor's supply. It's wrapped in post-form Wilsonart. I must also add that the design was copied from someone online who was in business for a while building these guys. He was very helpful and gave me lots of ideas.

There are several issues that you can't see in the pics. Mostly the finish I used is cracking :=(. I used a water based polly and put on too may coats. Next time it's oil-based and I'll probably spray it on before assembly. There are a few parts that are not 100% square but they don't impact the movement or look of the scope, but I know they are there.

Thanks for looking.

Gallery

Comments

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396 Posts
This is a great job. Looked at the other pics on the website. Most impressive.
 

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6,840 Posts
What a fantastic idea! I didn't even know you could build your own telescope, much less make it such a beautiful woodworking project.
 

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Very interesting project! Your wife is to be commended for support and "authorizing" quality parts!
 

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A piece of art Jerry. Beautifully executed. This is not something I would think of doing in wood. Outstanding piece and thanks for posting it.
 

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653 Posts
Impressive engineering - I enjoyed the accompanying article also - well done
 

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We have a fella down the street who is loves telescopes and grinds or shapes? his own mirrors. I would love to try something like this.
 

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A beautiful piece of craftsmanship.

It looks like your whole family enjoys it.
 

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I just stumbled across this. I guess maybe I'm not an oddball that built his own scope. lol

I built a 6" Newtonian on a Dob mount originally but last year converted it to a pipe Equatorial mount. Works great now.

Great job on the scopes BTW.
 

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Beautiful job. Thanks for the link.
 

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I have been sanding and finishing wood floors professionally for 32 years. In your case, any surface finish like polyurethane will end up cracking. You want a really good penetrating finish like Waterlox. It soaks into the wood and is very water-resistant. There are a lot of other brands of penetrating sealers to choose from which will work fine. Any time the finish is needing a little care, you can just rub some on with no preparation. It will always look nice. Surface finishes are best for temperature- and humidity-stable environments where a lot of physical wear is expected.
 

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Leroy,

I wish you had told me that 5 years ago :). The finish is indeed cracked. At this point I think the only way to fix it is a total rebuild. However, the scope still works as well as the day it was built so if I was going to spend a few months building a scope it would be a lot bigger! I looked at the Waterlox website and I'll put that on my list for the next project. Thanks for the info.
 
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