我的望遠鏡
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- 夸克星
- 文章: 3847
- 註冊時間: 週四 09 10月, 2003 21:06
Dear Miss BeanKitty,豆豸苗 寫:咁可能都係用水喉箇好0的.
PVC pipe has sufficient strength but does not possess the lightness for a 6 inch Nestonian. Although it sounds somewhat illogical the best solution is to make a galvanized IRON tube. It is being strong enough yet does not weight too much.
Have you noticed that many commercial Newtonians are fabricated of iron tube insated of PVC or aluminium ?
Best regards
Chan Yuk Lun
我的第二支天文望遠鏡
呢支就係我的第二支天文望遠鏡, 4" f/4自製牛頓式反射鏡, 鋅鐵皮鏡筒.
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- 夸克星
- 文章: 3847
- 註冊時間: 週四 09 10月, 2003 21:06
Re: 我的第二支天文望遠鏡
Dear Mr. Subaru,Subaru 寫:呢支就係我的第二支天文望遠鏡, 4" f/4自製牛頓式反射鏡, 鋅鐵皮鏡筒.
Please forgive my ignorance about computer but I can't see your pictures. Would you mind send it again to the forum as an attached diagram ?
Sorry for troubling you but I really want to see your DIY telescope.
Best aregards
Chan Yuk Lun
Re: 我的第二支天文望遠鏡
The photos should able to be seen after log on to the forum. I would suggest the admin to check if he can see them or not.Chanlunlun 寫:Dear Mr. Subaru,
Please forgive my ignorance about computer but I can't see your pictures. Would you mind send it again to the forum as an attached diagram ?
Sorry for troubling you but I really want to see your DIY telescope.
Best aregards
Chan Yuk Lun
Re: 我的第二支天文望遠鏡
..... I would suggest the admin to check if he can see them or not.
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No problem.
Wongsir
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No problem.
Wongsir
Re: 我的第二支天文望遠鏡
你的第一支望遠鏡都幾高級配備喔,再睇埋相片裡的背景Subaru 寫:呢支就係我的第二支天文望遠鏡, 4" f/4自製牛頓式反射鏡, 鋅鐵皮鏡筒.
你係唔係七十年代出生的人啊^^
Re: 我的第二支天文望遠鏡
呢支係我的第二支鏡, 台架是借用同學的.Tarepanda 寫:你的第一支望遠鏡都幾高級配備喔,再睇埋相片裡的背景Subaru 寫:呢支就係我的第二支天文望遠鏡, 4" f/4自製牛頓式反射鏡, 鋅鐵皮鏡筒.
你係唔係七十年代出生的人啊^^
果陣時無錢, 而且那時很留行自製鏡(因Wongsir、關老闆嘅推動, Wongsir本書我讀過起碼幾十次), 要大一點口徑嘅鏡, 自製鏡係我的唯一出路.
係.
- chrislichi
- 夸克星
- 文章: 2005
- 註冊時間: 週四 30 9月, 2004 18:03
- 來自: SKY
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