How Can I Build My Own Telescope Without a Tube?

In summary, Ahmed plans to build a telescope and needs to collect all the equipment. He has found the best measurements and type of telescope to be made using Jean Texereau's book "How to make a telescope". He has used all YouTube videos and looked up each part of the process, but the most difficult phase has been figuring out how to make a mirror from a sphere into a paraboloid. He is sending his mirror off to be aluminized and plans to start building his telescope soon.
  • #1
mishoz
1
0
Hello,
I've bought a skywatcher refractor 1025AZ3 with D:102mm F:500mm but unfortunatlly i wasnt able to get into my country so i have everything except the tube, so i decided to build the tube..do u know how i can find the construction instructions to build this tube or is it possible to build another refractor tube with different specs or even a reflactor one?


p.s: i have 45º Erect Prism, 1.25” Super 25 and 10,Red dot finder.

Thank you.
Ahmed
 
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  • #2
Hi,
I am also planning to build a telescope, need to collect all the equipment. looking for best measurements and its type.The suggested book was "How to make a telescope " Jean Texereau.
 
  • #3
Ive used all youtube videos and kinda looked up each part as I went. The most difficult phase I have found is the figuring of the mirror into a paraboloid from a sphere. The foucault tester involved has to be very sensitive. So make sure to build a very sturdy tester. This is the best one I have found is here http://www.youtube.com/playlist?list=FL61C1Lsgudm9Db_s6qRQOag, the cheapest place for grinding/polishing supplies is http://firsthanddiscovery.com/. The blank itself is hard to find cheap. I got one on ebay for 13 dollars and it was beat to hell, but easy to clean up, unfortunately that was two years ago and I haven't seen another cheap one since. Here is the cheapest site I have found for blanks. http://www.telescopemirrorblanks.com/. I had to restart my mirror twice so I have a real good idea on what to do and what not to do.
Here is the best site for grinding and polishing directions. http://stellafane.org/tm/atm/. And for figuring I used this http://www.loptics.com/ATM/mirror_making/full_lap/full_lap.html and this http://www.bbastrodesigns.com/JoyOfMirrorMaking/Parabolizing.html. There is a good video explaining the different test types on the ATM link as well. I am sending my mirror off to be aluminized as we speak. Happy Grinding!
 

1. What materials do I need to build my first telescope?

To build your first telescope, you will need a primary mirror, secondary mirror, eyepiece, tube, mount, and tripod. You may also need additional tools such as a screwdriver, drill, and glue for assembly.

2. How do I determine the focal length and magnification of my telescope?

The focal length of a telescope is determined by the distance from the primary mirror to the focal point, and can be calculated by dividing the focal length of the eyepiece by the focal ratio of the telescope. Magnification can then be calculated by dividing the focal length of the telescope by the focal length of the eyepiece.

3. Do I need any prior knowledge or experience to build a telescope?

While some basic knowledge of optics and astronomy may be helpful, it is not necessary to have prior experience to build a telescope. There are many resources available online and in books that can guide you through the process step by step.

4. Can I customize my telescope to fit my specific needs?

Yes, one of the benefits of building your own telescope is the ability to customize it to your specific needs and preferences. You can choose the size, focal length, and other features to suit your observing needs.

5. How long will it take to build my first telescope?

The time it takes to build a telescope can vary depending on the complexity of the design and your level of experience. It could take anywhere from a few hours to several days. It is important to take your time and follow instructions carefully to ensure a successful build.

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