uraniborg

[uraniborg]

wow che macchinario!Massimo andrò di classico trapano a colonna smeriglio acqua e attrezzo del
diametro adatto ,che non ho difficoltà a fare avendo il tornio.
per il secondario si mi sembra la vera impresa dopo quella del primario.nel libro di texereau
viene descritta una piccola macchina per diametri ottici piccoli,mi balenava l’idea di costruirne una,magari una tipo zeiss in miniatura?è un’una mia idea cosa dite?
mi pare giusto il commento a favore del 300.
ciao GIM guarda mi sembra di avere fatto un buon acquisto,quando su astrosell sono apparsi li ho
subito presi andando di persona a ritirarli,pagandoli entrambi meno di 100euro

[uraniborg]

https://postimg.cc/image/9qy75zpdh/

[uraniborg]

a si un F4 ok mi sembra ottimo come progetto. un dubbio con l’aumentare del diametro del primario
aumentano le difficoltà costruttive per un f4? mi spiego avendo un altro blank da 305 30mm thick
e volendolo realizzare il cassengrain”pure”come mi suggerisce Massimo ci sarebbero più “difficoltà”
rispetto al 250mm? per l’utensile da usare ,immagino vari,cosa posso usare e come?
scusate ultima domanda,preferirei forare subito prima di iniziare a sbozzare avrei molte ansie
a lavoro finito..be grazie per il momento

[uraniborg]

[uraniborg]

Thanks Stefano, the more we are, the more we can share, so welcome!!
Let's say that like you I'm a super geek too,I haven't made a mirror yet,
the search for suitable glass took me months.propio in these days I was able to find
two blanks suitable without fainting in euros. I bought the abrasives…
See you soon

[uraniborg]

It came to my mind to be able to use the drive I have a half-hp three-phase asynchronous
so it would be a step forward,a better one step?to vary the laps I had thought of pulleys for use with single-phase motor. in such cases the use
the machine is convenient to vary the rpm record door mirror?sorry questions
perhaps trivial ,but I want to fully understand the potential.

[uraniborg]

thanks Gim clarifications .the motor is an asynchronous from 0/5 hp 220v 1400 rounds.
but I also would have another with the same characteristics but 2hp.nelle last lines speak
polishing,It will be done by hand?

[uraniborg]

thanks Gim took advantage subito.ho an electric motor with a reducer which makes 30 rpm.
for the dish are too many or few?the arm of the tool as a percentage how much faster
should turn? sorry if I have not explained properly

[uraniborg]

I have seen and I have documented thanks to your reports,Now I know a little
more than prima.ma honestly the firm is beyond my ability
current,but never say never,thanks bye

[uraniborg]

because you have been exhaustive in risposte.certo is a great undertaking
something in the mechanical portion x the small diameter could groped
especially the electrical safety would be the prince rock
not a technical experiments and attempts make me afraid
with the tensions in the game. I have a tried and tested set x groped

[uraniborg]

Dear Joseph, I can only thank you and get you the necessary compliments.
propio yesterday I tried some good project ,but they were too complex or
or simple yet unclear and questionable results.
I think I will copy but not in toto,having already everything necessary
I am a serial accumulator of industrial wastes!
A greeting

[uraniborg]

I'm really sorry…But do not beat you've thrown away all the hours of work
Just riproverai you'll treasure this experience
A greeting

[uraniborg]

good luck .. for all I know what it means to hold on
hello a hug

[uraniborg]

grazie mille Giulio

[uraniborg]

ciao ragazzi a parte i dubbi che devo sciogliere sul primario..sto tentando di procurarmi i
grani di carborundum,non vorrei aprire un altro tread continuo qui,la grana 80 la trovo facilmente
in sacchetti da un kg,le altre mi sono difficili,se avete consigli sono ben accetti
grazie vi seguo

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