maurizio63

[maurizio63]

http://s21.postimg.cc/7ygmi1jvn/Immagine2.jpg
maybe you see better?

[maurizio63]

http://s28.postimg.cc/ko5u8ezbx/Immagine1.jpg

[maurizio63]

How do I add a photo?

[maurizio63]

Hi guys,
I resumed work on the mirror and I came to polishing (3 hours)
I tried to do the Ronchi test and would like some advice I seem to me that there is an edge wrong (I do not know itself raised or retorted) and I not know what to do I tried to take some pictures, and better than that I can not,I try to put the photo

[maurizio63]

I'm a little late for Christmas wishes but in time to send you a good one 2015
Best wishes to you all.

[maurizio63]

Henry Hello and welcome among us.

[maurizio63]

Ciao,I'm done with the grain 1000 but I realized that there are 2 small scratches that you only notice with the lens ,You think that the next processing with the pitch patina and cerium will be deleted?

[maurizio63]

hello astrotecnico,
as you say not’ all easy,one thing and’ certain that if one tries is expected to account
that the first attempts will help you with experience.

[maurizio63]

hello Mirco,I had already also seen that type of merger ,but here we go on even more complicated(in my opinion), I'd be happy to know how to do more mergers simple but good quality.
A future project (I'm thinking about for a while’ I do not know if and’ achievable) e’ autocostruirmi to an oven(if costs are acceptable)and try to do some prova.Vedremo…

[maurizio63]

Ok I am now I have more clear ideas.

[maurizio63]

Hi guys,I'm seeing the photos networked by Massimo for costruzzione of Foucault and at the same time I'm also testing consulting the book where Texereau
c’e’ a fixed rod with scale in mm and a drum but I can not understand com’ e’ I divided the scale on tamburo.Ho printed on A4 paper division of Massimo drum and there are two examples :the first is from 0 until 1,35 and the second from 0 until 1,4 in short, I have a bit of confusion .

thank you

maurizio

[maurizio63]

hello Deabis,
for the test I saw your video, but not having a strong enough source of light
I used the sun as my part and’ a nice day.

ps :province of Rome

[maurizio63]

Ciao,Today I finished with 220 and I did the test to check the focus and I can say that so far we sono.Poi I wanted to see if the distance of the radius of curvature (3000 mm) lit up the mirror focusing with laser, it has not’ nothing happened.
Now I wonder e'troppo soon because I will illuminate the mirror?
The laser was not right?
The mirror goes wet?
Where mistake?
thank you

[maurizio63]

hello Giulio,
thanks for the clarifications (I have many other questions but slowly…) .
Reading between the various forums you go from 800 to 1000 I who have the 800
I should switch from 600 to the 1000 It could go well?

[maurizio63]

I switched to the grain 220 and everything is going well.
But I have a lot of carborundum process that I would recover if not’ too complicated,someone recovered? Can you give me some clarification on how to do and whether it makes sense?
thank you

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