Webster-Telescopes
At 04:56 PM 9/28/2006, you wrote: >I would need to lay on some more capacity for 6 - 8 per month.... >Lead time for something like this would be 8 monthes. > >..... I only have one fully finished sample in my hands that is a 16 inche >cellular design. Its figure is excellent and can be seen on this webpage... > >http://www.embeddedrf.com/Lookinglass_Webpage_Files/Webbed_Backed/Webbed_Blank.html
I've seen that, it looks good. I was hoping that some commercial mirror makers had done a few as examples. Kennedy is so darn conservative, he never wants to be the first, he always wants a "sure thing"
>For a steady demand of 6 - 8 per month I can consider making a custom
>design at 32 inches.
How would the custom design differ from your regular 32" design?
> I tend to want to go to the higher apertures because of their being less > competition.........
Sure, I can understand that. The same reason we only make telescopes from 22" to 40" .
1. Now that you have had more experience with mirror casting, have you found a way to eliminate the bubbles? This concerns Kennedy greatly, because of the chance of abrasives remaining in the pits from previous grades of polish.
2. I realize that the mirrors are probably cast face up, does that make the bubbles rise to the surface?
3. Do you have any way to offer a pregenerated curve to the face, or ground flat back, like a conventional blank?
4. Where are you guys located?
Thanks,
Eric Webster Webster Telescopes www.webstertelescopes.com
> > > >---- Webster Telescopes <eric@webstertelescopes.com> wrote: > > At 02:53 PM 9/26/2006, you wrote: > > >The ovens are busy so there is quite a lead time.... > > >...as for samples ....we have enough business there is no gain for us to > > >give them away. If he wants to buy a sample that is a different matter > > > > > > Fred > > > > Thank you Fred for the quick response. > > > > Are you too busy for 6-8 more mirror blanks in the 25 to 32" range a month? > > > > What is the current lead time? > > > > Any mirror makers who are using your blanks that we may have heard of or > > could be used as reference? > > > > What are people using for mirror support cells on your finished product? > > > > I'm sure Mr. Kennedy does not expect a free sample. Corning glassworks or > > United Lens often sends the first production sample on spec for evaluation. > > > > Thank you again, > > > > Eric Webster > > Webster Telescopes > > www.webstertelescopes.com > > > > > > > > > > > > >---- Webster Telescopes <eric@webstertelescopes.com> wrote: > > > > Are you actively making the cellular mirror blanks featured on your > > > website? > > > > > > > > Steve Kennedy http://www.kennedy-optics.com/ has been looking for a new > > > > supplier for large mirror blanks. I pointed out your website, but > he was > > > > skeptical because he had never heard of you guys. Mr. Kennedy, as you > > > > know, is the premier large aperture mirror maker in the United > States. He > > > > makes a lot of big mirrors, nothing under 22". > > > > > > > > Let me know what the current status is on the blanks, and hopefully > you > > > can > > > > get a sample to Mr. Kennedy. > > > > > > > > Thank you, > > > > > > > > Eric Webster > > > > Webster Telescopes > > > > www.webstertelescopes.com > > > > 734-513-2955 > > > > > > > > > > > > > >