New structure for my 16" Ostahowski mirror

[Acrab]

Hi,

This is the new structure self-built for my 16" Ostahowski mirror. Its very much light and portable that my previous Kriege-Berry classic design. I hope that like you.

Best regards.

Víctor

[José9]

Woah, congratulations, it's very beautiful, it seems like a pro work !

Just a little thing that makes me feel dubitative: the secondary box isn't a little bit too high?

Becasue I think that you can earn a couple of grams by reduce it size, or, the better way, by making a single ring secondary box with a pyramidal secondary support.

sorry for my bad english

bye

José

[jgricourt]

Very simple, clean structure and a very fine finish and from this standpoint I'd say it is the same breed like the Krieg structure. Congratulation Víctor you did a great job !

 

By the way do you find the central fan useful in the long run ?

 

... the secondary box isn't a little bit too high?

 

It's an f/5 dobson I think

Modifié 31 mars 2012 par jgricourt

[fra]

hello, very good job !!! it's a beautiful dobson. it must be easier to carry it now under the dark sky of spain... How lucky you are

[Acrab]

Thank you all. The secondary cage is slightly oversized on purpose, it has a 450 mm of inside diameter for a 406 mm f5 primary mirror. I am not convinced ultra-compact designs in the style of Obsession UC telescopes, so I built a hybrid between the classic and the UC Dobson.

Yes, the central fan help, this run an only 800 rmp

Modifié 31 mars 2012 par Acrab

[jp-brahic]

very nice dobson!!!!good job

[bubu bis]

A new telescope was born!He's very beautifull!It's the biggest telescope of the spain!

I'm sorry, i'm late!

Modifié 31 mars 2012 par bubu bis

[dobcat]

hola ! es molts bounic , me grade , felicitations