Re: [ATM] Baffles in a Complex Design

["David Harbour" <stainless_steel@suddenlink.net>]

Richard, all-

But of course; this was when I was laying out the perfect baffling of my 6" 
f/12 cemented apochromatic triplet from Roland Christian; its performance 
took one's breath away. But I doubt if there was such a program or a PC that 
could handle that in '89. The lens went on a long journey; I bought it from 
Roland; I sold it to a man who won the Kansas State Powerball Lottery, and 
then fell over dead within the week; his brother inherited it (recovered it 
years later)- he stopped me one day when I was passing his house (all this 
took place over a period of years) and said to me: "David, come out to the 
workshop. I have something for you."

To make a long story short, he GAVE me this lens back, in its original 
tube-removable mounting that I made for it. It had cost me 1280 from Roland; 
I sold it to the other guy for 900; I then advertised in for sale on Astro 
mart for 2200 or best offer; a guy finally called and said: how about I 
asend you a cashier's check for $3,500 this afternoon. I said: I will start 
packing it now. Long gone, but not forgotten.

Ask Gary Fuchs or his son Matthew about their very good CAD software; I 
forget what they call it (it is not "Solidworks"), but there was a pretty 
capable free edition, to whet one's appetite. It was on my old machine when 
it melted down. (But the dope on the harddrives is intact, and I saved 
those!!!!!)

Good luck on this plan; I like the idea and see no reason why it should not 
work.

R-101/Davey


----- Original Message ----- 
From: "Richard" <cnc@cncservo.co.uk>
To: "David Harbour" <atm@atmlist.net>
Sent: Sunday, March 23, 2008 12:52 PM
Subject: Re: [ATM] Baffles in a Complex Design


> Hi David,
>
> Sunday, March 23, 2008, 5:34:31 PM, you wrote:
>
> DH> "Take the easy way out"- the way I did, with my dull brain. Get some 
> "Banner
> DH> paper" from a grocery store, and layout the optical paths to correct 
> scale;
> DH> i.e., one to one.
>
> Or, easier still 'cos you stay sitting down... :) Export the optics and
> optics path from Zemax as an IGES file and import straight into 3D
> CAD. I have access to Solidworks which does a great job, but I'm sure
> I have seen freeware CAD mentioned on the list before.
>
> -- 
>
> Best regards,
>  Richard in the UK
>
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 


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