Forum Replies Created

Viewing 7 posts - 31 through 37 (of 37 total)
1 2 3
  • Author
    Posts
  • 14 May 2017 at 18:09 in reply to: Primary 420 f/4.6 lightweight #9780
    uraniborguraniborg
    Participant
      • Offline

      hello Mirco I think the “trouble”but this is not physiological in this type of realizations.
      homogeneity of materials,tensions,cooling mode ecc.portino to not having a
      surface “perfect”,feat. as you've pointed out the work will be a little longer.
      I follow with great interest :good:

      12 May 2017 at 22:20 in reply to: Primary 420 f/4.6 lightweight #9773
      uraniborguraniborg
      Participant
        • Offline

        splendido..e bold project that compliments

        7 May 2017 at 16:36 in reply to: which thickness? #9752
        uraniborguraniborg
        Participant
          • Offline

          grazie.allora seems to have a focal point of about 1900mm :bye:

          7 May 2017 at 11:33 in reply to: which thickness? #9750
          uraniborguraniborg
          Participant
            • Offline

            hello I am fought on the purchase of glass disks,because I would have the opportunity to have
            a blank optical glass by former observatory thickness 50mm diametro350mm but since it is
            It has been worked(focal unknown) I was wondering if you could “reset” or pianare for zero.scusate from the rough explanation
            regards

            1 May 2017 at 23:05 in reply to: which thickness? #9724
            uraniborguraniborg
            Participant
              • Offline

              I agree with the reasons of the bin :good:

              1 May 2017 at 22:03 in reply to: which thickness? #9719
              uraniborguraniborg
              Participant
                • Offline

                Thank you always esaurienti.Massimo is a life that I would realize “my” telescope
                but before you the information and my knowledge were really scarce. I saw
                Dobson in the video that you have recommended me the tool of the pitch is smaller lens
                It is feasible for a beginner?a curiosity to the bench system using Dob to work the mirror is different from those using ex-ballasted bins,what do you think?
                Giulio I saw your Dob is a fantastic achievement species tilted focuser is brilliant
                I observe from Lombardy in a sub urban setting near a park I also used by other astronomers then planets and moon are my targhet.
                I would be happy to receive your cad
                health to all

                1 May 2017 at 11:27 in reply to: which thickness? #9713
                uraniborguraniborg
                Participant
                  • Offline

                  Thanks your answers have been very precise.non I thought to be able to use two different thicknesses!Julius did not you confuso..anzi.sospettavo that the focal length would be decisive on the difficulties as well as I think my idea of ​​configuration ottica.nella telescope
                  I would opt for a long focal,which I would facilitate me if I understand the construction primary objective,and also expect no secondary frequency of use,since I have not
                  the opportunity to move to dark skies,observe moons and planets,a planetary dobson say.
                  for the mechanical part,cell etc., I can handle having a small home machine shop,
                  lathe milling Excellencies forbid the project,It is denied with programs such as CAD and the like,non
                  I can only congratulate you on certain facts technical drawings from voi.quindi'd be on a 350MM F6
                  what do you think? thank you all

                • Author
                  Posts
                Viewing 7 posts - 31 through 37 (of 37 total)
                1 2 3