Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Stargazing Building my first telescope

Tags:
  1. Sep 22, 2007 #1
    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
     
  2. jcsd
  3. Nov 28, 2014 #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.
     
  4. Jan 12, 2015 #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. Im sending my mirror off to be aluminized as we speak. Happy Grinding!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Building my first telescope
  1. Got my first telescope! (Replies: 32)

Loading...