maurizio63

[maurizio63]

Hi Massimo,
I made some past as you suggested and are in this situation,but I have to keep
so, up to the ball or do I have to change something?
It seems to me a paraboloid.

http://s29.postimg.cc/4g2ela43b/IMG_20170103_140547.jpg
http://s28.postimg.cc/5798nbmrx/IMG_20170103_140822.jpg

[maurizio63]

Hello guys,
I know and’ a bit’ I'm missing,I hope to pick up right where they are
remained in a few weeks.
On this occasion I make him Merry Christmas and Happy 2017

Maurizio

[maurizio63]

Hi guys,
at this time I'm working a lot on the mirror,But
I'm realizing that it is not’ simple remove this edge retorted.
I worked almost always 1/4 COC and a few laps 1/3 COC (80% e 20%) e
by the images I see a hill close to the border countered and more dug center,
I thought of doing of past 1/3 or maybe even more to take that hill you think?

https://s11.postimg.cc/ac9sa47gj/IMG_20160328_101833.jpg
https://s22.postimg.cc/v0f9h7tmp/IMG_20160328_103127.jpg
https://s27.postimg.cc/4k445czwj/IMG_20160328_103340.jpg

[maurizio63]

Ciao, sono riuscito a sistemare in un bagno uno sgabello con dei mattoni per lavorare a 21/22 degrees.
Come vi avevo detto devo tornare alla sfera; il buco centrale ora non c’e’ piu ma sto trovando difficoltà per la sfera e mi trovo in questa situazione che ne dite? Lavoro 1/3 COC

http://s23.postimg.cc/d1xpivlu3/IMG_20160225_185637.jpg
http://s9.postimg.cc/icpt5vbfj/IMG_20160225_185759.jpg
http://s30.postimg.cc/aykch1z4h/IMG_20160225_190020.jpg

[maurizio63]

Non voglio fare esperimenti sulla pece. Il problema e’ soltanto quello di scaldare un ambiente cosi grande.
Però mi hai dato l’idea del bagno non ci avevo pensato,e se il fusto dove lavoro riesce ad entrarci si potrà fare.

[maurizio63]

Prima di riscaldare il locale dove lavoro (35mq) e portarlo a 22-23 degrees,e alla luce di un pò di esperienza sulla pece vorrei riprovare con la pece greca migliorandone la durezza,male che vada con la gugolz posso sempre rimediare…
Potrebbe andare che ne dite?

[maurizio63]

Giulio,come posso rendere la mia pece gugolz64 piu soffice?

[maurizio63]

My mirror and’ 310 mm.
– I work in an environment where the temperature fluctuates between 18-19 degrees
– pitch and’ the gugolz 64
– the W movement MOT ,I bring the center of the mirror to 1/8 from the edge of the tool
– I always check the channels that are not closed
– I do the hot adaptation at the beginning of each session.
I venture to say that perhaps the temperature of the room is’ a little short with less than perfect movement?

[maurizio63]

Guys and’ the third time I return to the ball I can't make a correct movement to parabolize (I always create a central hole), yet I think I'm paying a lot of attention to it……
Some advice?

maurizio

[maurizio63]

http://s22.postimg.cc/7cjtgx969/IMG_20160131_124645.jpg
http://s2.postimg.cc/7igpxpts9/IMG_20160131_124725.jpg
http://s11.postimg.cc/lget4j8oz/IMG_20160131_124801.jpg

[maurizio63]

hello Giulio , I had a wrist problem and was out of action for a few days.
I started working on it again last Sunday and am trying to get back to the ball though’ I still have a small hole and the bands are no longer straight, I think they are tending towards a parabola. Now I was wondering if it's worth going back “always” the sphere ,or as the amateur astronomer's note says that I can correct it by paying close attention to the W movement “flat and straight”?

[maurizio63]

Hi guys,
today I started to parabolize and after about 10-15 min of W movement I saw this situation with the rhonchi I think it is normal in the early stages but I'm not sure;you think?
http://s2.postimg.cc/bkno77v1l/IMG_20160117_085114.jpg
http://s14.postimg.cc/4msb8b56p/IMG_20160117_085149.jpg
http://s27.postimg.cc/mgjb768lf/IMG_20160117_085219.jpg

[maurizio63]

Hi guys,
this time no questions but only to wish HAPPY HOLIDAYS to all the Grattavetro editorial staff and to all those who like us enjoy capturing the stars.

ps:I haven't captured any yet but I'm trying..

[maurizio63]

Hi guys,
I have some questions for you:
1 I have to use the same layer of pitch to parabolize (no star shapes or similar)?
2 I was looking at the pictures of the RonWin20 program and I don't understand when a parabola is undercorrected or overcorrected the difference and’ so minimal,they all look the same,this is because I wanted to continue in this way: first check the dish with the ronchi and then once you have verified that e’ correct go to work with the focault what do you think?

[maurizio63]

To reach the sphere, I went through problems that I gradually managed to solve (pitch adaptation,raised edge, hill in the center and hole in the center,tester rebuilt with Giulio's advice),in short, I had a good experience and in any case I have thought about every problem a lot and now I have understood at least up to this point everything I am’ success and why me e’ success and how it is’ been fixed. Thank you all.
Now the parabolization chapter begins and I am re-reading all the topics on the site concerning this phase. I already have some questions but when I tackle the topic in practice, I will ask them, always hoping for your help.

maurizio

[Author]

Posts