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  • in reply to: Hi everyone #11818
    EnricoR
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      :bye: therefore, I update you on the disasters I will be able to make, I update you on the disasters I will be able to make.
      I update you on the disasters I will be able to make, I update you on the disasters I will be able to make 1/8 the diameter (I update you on the disasters I will be able to make ?) :scratch:
      I update you on the disasters I will be able to make. I update you on the disasters I will be able to make, I update you on the disasters I will be able to make, I update you on the disasters I will be able to make (I update you on the disasters I will be able to make) I update you on the disasters I will be able to make.
      I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi.
      I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi (I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi):

      I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi, I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi

      I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi

      I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi :

      I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi, I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi, I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi 5 I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi, I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi, I'm trying to do short sessions and often check the progress of the form in a visual way with the Ronchi, unlike what I got with CouderMask which eliminates the shadowed part from the secondary.

      unlike what I got with CouderMask which eliminates the shadowed part from the secondary, unlike what I got with CouderMask which eliminates the shadowed part from the secondary, unlike what I got with CouderMask which eliminates the shadowed part from the secondary 4 unlike what I got with CouderMask which eliminates the shadowed part from the secondary, unlike what I got with CouderMask which eliminates the shadowed part from the secondary’ unlike what I got with CouderMask which eliminates the shadowed part from the secondary

      unlike what I got with CouderMask which eliminates the shadowed part from the secondary. :scratch:
      unlike what I got with CouderMask which eliminates the shadowed part from the secondary :wacko:

      in reply to: Hi everyone #11804
      EnricoR
      Participant
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        Thanks Massimo ! To be honest, I was tempted to start with parabolic, To be honest, I was tempted to start with parabolic (To be honest, I was tempted to start with parabolic) To be honest, I was tempted to start with parabolic :wacko:

        To be honest, I was tempted to start with parabolic, Unfortunately, To be honest, I was tempted to start with parabolic, To be honest, I was tempted to start with parabolic, To be honest, I was tempted to start with parabolic :negative:

        Good, To be honest, I was tempted to start with parabolic !! (To be honest, I was tempted to start with parabolic) :yahoo: :yahoo:
        To be honest, I was tempted to start with parabolic, mirror above, To be honest, I was tempted to start with parabolic 1/8 To be honest, I was tempted to start with parabolic.
        I update you on the disasters I will be able to make :good:

        in reply to: Hi everyone #11796
        EnricoR
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          Hi everyone, and happy Sunday, i found there…
          i found there, i found there ( so to speak ) raised edge, i found there, i found there ?
          i found there :



          Unfortunately, i found there, i found there 10-12 mm :negative: i found there (i found there :wacko: )?

          in reply to: Hi everyone #11792
          EnricoR
          Participant
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            Sooo good, you are heading towards a very good sphere…

            Giulio, you are heading towards a very good sphere, you are heading towards a very good sphere :yahoo:

            you are heading towards a very good sphere’ you are heading towards a very good sphere

            Intrafocale :

            Intrafocale

            Extrafocale :

            Extrafocale

            Giulio, i found there’ i found there, i found there, i found there :yes:

            in reply to: Hi everyone #11764
            EnricoR
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              Hi everyone, Another detail of the secondary spider, Another detail of the secondary spider.
              Another detail of the secondary spider’ Another detail of the secondary spider, Another detail of the secondary spider.
              Another detail of the secondary spider, Another detail of the secondary spider.
              Another detail of the secondary spider 15 Another detail of the secondary spider, Corsica 1/3 Another detail of the secondary spider (without the aid of the motorized rotating table).
              without the aid of the motorized rotating table. without the aid of the motorized rotating table.
              without the aid of the motorized rotating table, without the aid of the motorized rotating table ? without the aid of the motorized rotating table ?
              without the aid of the motorized rotating table

              without the aid of the motorized rotating table 2017 (without the aid of the motorized rotating table) :

              Intrafocale
              Extrafocale

              without the aid of the motorized rotating table :
              (without the aid of the motorized rotating table, without the aid of the motorized rotating table, without the aid of the motorized rotating table)

              Intrafocale
              Extrafocale
              Foucault

              without the aid of the motorized rotating table, without the aid of the motorized rotating table “flat” without the aid of the motorized rotating table, quite right ?

              The’ without the aid of the motorized rotating table’ friction that I encounter during processing, friction that I encounter during processing’ friction that I encounter during processing.

              friction that I encounter during processing, friction that I encounter during processing (friction that I encounter during processing) friction that I encounter during processing, friction that I encounter during processing’ friction that I encounter during processing’ friction that I encounter during processing……

              in reply to: ci provo anch'io #9199
              EnricoR
              Participant
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                Hi guys!
                …Maurizio, what to say, Also in my part, Unfortunately, work is proceeding at a slow pace….
                We hope that the new year will bring some’ more time :wacko:
                A heartfelt Merry Christmas wishes to you all :heart:

                in reply to: Hello to all grattavetro! #8692
                EnricoR
                Participant
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                  Really nice job Lelio :yahoo: congratulations :good:

                  in reply to: Hi everyone #8691
                  EnricoR
                  Participant
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                    Another detail of the secondary spider :-)
                    Another detail of the secondary spider…….Another detail of the secondary spider :bye:

                    in reply to: Building a Cassegrain #8625
                    EnricoR
                    Participant
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                      hi Luca, I had come to doubt you were from around here when I read that you could retrieve tiles from the workplace ... :whistle:

                      As for the 'aluminizing, the research that I did on-line at the time, It turned out to be nothing in the area here, the only remain Zen (Venezia) e Zaot(Milano). :unsure:

                      Good idea, I had no way considered, Lelio to try ... .. :good: :good:

                      in reply to: Building a Cassegrain #8618
                      EnricoR
                      Participant
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                        There are no real contraindications, the substantial difference between the two panes is that the pyrex has lower coefficient of thermal expansion compared to normal calcium sodium (ie, it deforms less by changing the temperature with respect to calcium sodium) but here we enter a specific field where the other guys you definitely will explain better than I :good: (I remember reading something about that in a post Giulio…but I have forgotten it)

                        in reply to: Hi everyone #8617
                        EnricoR
                        Participant
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                          Another detail of the secondary spider
                          https://s4.postimg.cc/k54xhrilp/Sup_Sec3.jpg

                          in reply to: Hi everyone #8615
                          EnricoR
                          Participant
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                            Hi Massimo!
                            I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter, I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter, I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter, on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me (perhaps) on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me (on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me, then, on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me) :wacko:

                            on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me, on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me, on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me 7/10 on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me. :whistle:

                            https://s10.postimg.cc/jcnebpkrt/Sup_Sec1.jpg
                            https://s10.postimg.cc/opc8pu8o9/Sup_Sec2.jpg

                            on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me, on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me, on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me, on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me 20 on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me (on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me)

                            https://s13.postimg.cc/fttwbt447/cella.jpg

                            on the other hand, I am "happy" with the problems I am encountering precisely because they will allow me :unsure: :heart:

                            in reply to: Building a Cassegrain #8613
                            EnricoR
                            Participant
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                              hi Luca,
                              The glass seasoning, for all I know, It does not affect the hardness, rather for seasoned glass means glass "stationary"

                              The curing process provides the time necessary to stabilize the tensions that inevitably will come to internally create the glass during the subsequent cooling at the casting of the slab.
                              Bedding that, if still ongoing during our work, you can imagine what can cause over time saw the infinitesimal tolerances in the game ...... If I am not talking nonsense ... :unsure:

                              If the glass you're talking about was purchased by 'e-bay User near Cremona, person from whom I bought my 260×20 mm and from which I also bought the 'top 410×30 mm, pyrex is not common but now unobtainable calcium-sodium glass in the thickness of 30mm ....

                              Good luck anyway for your project of undoubted difficulties, but at the same time extremely charming :good: :good:

                              in reply to: Hi everyone #8609
                              EnricoR
                              Participant
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                                Hello and welcome Lelio!
                                From your ronchi test it seems to me that more than a focusing difficulty there is a vibration induced by the pad that being random as Giulio says does not allow to define it accurately, I continue to read you and I am very pleased to see that slowly the "family" is expanding :yahoo:
                                I continue to read you and I am very pleased to see that slowly the "family" is expanding, I continue to read you and I am very pleased to see that slowly the "family" is expanding. :good:
                                I continue to read you and I am very pleased to see that slowly the "family" is expanding (I continue to read you and I am very pleased to see that slowly the "family" is expanding), I continue to read you and I am very pleased to see that slowly the "family" is expanding. I continue to read you and I am very pleased to see that slowly the "family" is expanding (I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter).

                                I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter:

                                https://s17.postimg.cc/pw54eybvj/Extra.jpg
                                https://s17.postimg.cc/b1gj0s2an/Extra1.jpg
                                https://s17.postimg.cc/3mr78egf3/Intra.jpg
                                https://s17.postimg.cc/rf0ijxifz/Intra1.jpg

                                I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter.

                                I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter:

                                https://s22.postimg.cc/hjjh3fdkh/cella250_F5.jpg
                                https://s22.postimg.cc/ft0g1xw1d/Sup_Prim.jpg
                                https://s22.postimg.cc/6mi5enqsx/Sup_Sec.jpg
                                g
                                P.S. I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter 410 x 30 I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter…. B-) I am increasingly convinced that most of the problems I am encountering are due to the imperfect adaptation between mirror and patina due to the hardness of the latter 256 obviously :wacko:

                                in reply to: Hi everyone #7449
                                EnricoR
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