actuary616 发表于 2011-7-1 07:12

请看法国牛人自制的40寸Dob

本帖最后由 actuary616 于 2011-7-1 07:17 编辑

原文：
http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Number/4666382/page/0/view/collapsed/sb/5/o/all/fpart/1
Hello, this is my first post on cloudynight,
I’m a ATM living south of France, on the limestone plateau of Larzac and I make dobs since 1993. A 16” was the first one, a 22” follow and later a 32”. All are visible on
http://www.astrosurf.com/altaz and some got an article in English at :
http://astrosurf.com/altaz/index_e.htm

Few years ago was the start of the last project, a pair of 40” instrument. The goal was to make to identical dob structure, one for the optician and one for me. So I made two structure. Basically, the 40” use most of the technique used to make the 32”. Plywood over Styrofoam, astatic cell and carbon truss. On the 40”, the cage is full carbon, including the spider (it’s a one part piece). The scope is around 280 kgs. They could have been made lighter but it was not the goal. The goal was to be able to use the FD3 primary at is maximum potential, so, the stiffness of the structure was more important than save few pounds. All alu part are anodized
It’s all home made, except the clement focuser and the motorisation from Siderealtech.
The motorisation is the last part of the job, got to set it up to see if everything is alright. I haven’t run it yet.

It takes me about 2000 hours for the structure, on 3 years. Not include a couple of year to design it. The scope is setup in about 30 minutes bye one person.

The jump from the 32” is obvious at the eyepiece. My 40” saw its first light last Saturday with some friends, Philippe Tosi, a French ATM was specially enthusiast as we can see on some pics !

I have never seen Saturn Nebula orange on all its edge or so warm color on some of the M27 parts. The Veil is so complex that it’s beyond description…

You can see some pics at :

http://astrosurf.com/altaz/T1000.html

http://www.stellarzac.com/observations%20stellarzac/

http://www.stellarzac.com/T1000/

stream80 发表于 2011-7-1 07:41

1米口径啊，不知道精度如何。
主镜是买来的吧。

libinlove 发表于 2011-7-1 07:48

春天的童话 发表于 2011-7-1 08:02

::luguo::::luguo::::luguo::::luguo::

oletech 发表于 2011-7-1 09:38

造型像個土炮::070821_12.jpg::

zengbinhot 发表于 2011-7-1 09:56

这个镜子目视行星会不会由于太亮而导致没有任何细节啊，哈哈
恐怕只能加滤镜或者双目高倍吧
看深空就爽呆了

流倒光时 发表于 2011-7-1 10:28

人间大炮............膜拜::070821_10.jpg::

LukeZ 发表于 2011-7-1 12:05

人家观测环境好啊，心情舒畅啊！

yanfei_99 发表于 2011-7-1 12:55

羡慕。。。::070821_10.jpg::::070821_10.jpg::::070821_10.jpg::

eyuhouyun 发表于 2011-7-1 13:03

中国的牛人在哪快献身

diy1980 发表于 2011-7-1 15:56

只能这样::070821_09.jpg::::luguo::::luguo::

twelve_monkey 发表于 2011-7-1 16:04

他的目镜位置会在哪里呢？

20040747 发表于 2011-7-1 18:37

还是那句话 很多东西值得借鉴！::42::

kissccb 发表于 2011-7-1 20:53

呵呵 强人强手艺。。:victory:

Celestron 发表于 2011-7-1 21:06

俺的终极目标！::070821_07.jpg::::070821_07.jpg::

skywalk 发表于 2011-7-1 21:14

大炮太牛了。。。::42::

wangwang004 发表于 2011-7-1 21:54

别看大，细节很有品位，精致

zhangkefeiwh 发表于 2011-7-1 23:48

病毒18005 发表于 2011-7-2 00:54

一下上两个牛人::070821_15.jpg::

陈彬 发表于 2011-7-2 03:22

焦比太小了吧::070821_15.jpg::
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