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  #61  
Old 21-09-2005, 04:15 PM
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ballaratdragons (Ken)
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I'll play the mathematician!

This is the Area of each size:

6" - 28.274"
8" - 50.265"
10' - 78.54"
12" - 113.1"


But the 16" area is - 201.06"

Pretty cool huh! Almost twice that of a 12" Dobbie!!!!!!!!!!!!!!!

Which equates down to $9.95 per square inch for the 16" compared to $10.60 per Sq inch for a 12" etc.
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  #62  
Old 21-09-2005, 04:18 PM
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xstream (John)
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I want........Pity it wont be here before SPSP 2006
I wonder if we can hurry them up?
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  #63  
Old 21-09-2005, 04:23 PM
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ballaratdragons (Ken)
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John, a quick trip to Taiwan and pick one up at the factory? Maybe one of the demo models. Offer them $500 cash.
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  #64  
Old 21-09-2005, 04:23 PM
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cometcatcher (Kevin)
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I made a 16" f5.4 dob for $1200. Took a few short cuts though like using PVC pipe for a focuser.
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  #65  
Old 21-09-2005, 04:30 PM
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ballaratdragons (Ken)
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Excellent Kevin.

Peter Read has booked into the Snake Valley Star Camp and will be doing a presentation on building an obsession truss-dob! Sounds good!!
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  #66  
Old 21-09-2005, 04:31 PM
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xstream (John)
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$500 you reckon Ken!

"Trip to Taiwan", now you've got me thinking.
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  #67  
Old 21-09-2005, 04:34 PM
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ballaratdragons (Ken)
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Quick John, only 36 sleeps till the Camp. You will need it for that!
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  #68  
Old 21-09-2005, 04:39 PM
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Just a minute........Hey Anna, do you think it will be okay for me to go to.............
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  #69  
Old 21-09-2005, 04:44 PM
anna
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Off you go. But there's just a small problem.
What about that camera you said you had to have that's
still on layby.
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  #70  
Old 21-09-2005, 04:57 PM
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ballaratdragons (Ken)
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Family tiffs. Oh dear! Hi Anna, he won't be gone for more than 24 hours! It's only a 16" scope, real cheap!! LOL!
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  #71  
Old 21-09-2005, 04:59 PM
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ballaratdragons (Ken)
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You can look through it too at the Camp. John will let you, won't you John, . . John . . .

He's already on the plane to Taiwan, WOW!
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  #72  
Old 21-09-2005, 05:05 PM
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ving (David)
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lol!
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  #73  
Old 21-09-2005, 06:21 PM
anna
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Sorry Ken, he can't hear you. I've locked him up in the grandkids bedroom.
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  #74  
Old 21-09-2005, 06:27 PM
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ballaratdragons (Ken)
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Ah hah! He is sneaking out the window Anna! Looks like he won't get to work on time tonight! Not unless there is a plane arriving back from Taiwan before 2 am. LOL!!
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  #75  
Old 21-09-2005, 07:03 PM
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Quote:
Originally Posted by ballaratdragons
Is that all you could come up with Houghy?

I was waiting for all the mathemetician type members to jump in and say "but consider the area per dollar as the increase cannot be measured by inches of diameter. Dollar-wise we must consider the size of area of a 16" over the 12", 10", 8" and 6"."

That's why you are here Ken, your the sharpest one here mate
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  #76  
Old 21-09-2005, 07:07 PM
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TidaLpHasE
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I wonder if they will check the mirrors before delivery
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  #77  
Old 21-09-2005, 07:14 PM
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ballaratdragons (Ken)
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LOL!!!!! hey Trevor, there will be no excuses. They are truss-dobs. Just open the lid of the box and look in. The mirror will be there to see. (that's if he opens the lid! )
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  #78  
Old 21-09-2005, 07:15 PM
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ballaratdragons (Ken)
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Quote:
Originally Posted by h0ughy
That's why you are here Ken, your the sharpest one here mate
Hehehe! as a bowling ball.
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  #79  
Old 21-09-2005, 07:19 PM
slice of heaven
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Quote:
Originally Posted by h0ughy
ahh yes but the gain in magnitudes is logarithmic ken.....................
So by upgrading from a 12" to the 16" you'll gain roughly 1 mag, and whatever in resolution (I'm too googled out from the quiz to look) for those $$$$.
Are they going to bring out a larger size in the future to make it worthwhile for the 12" brigade to upgrade ?
A 20" or 24" would be nice
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  #80  
Old 21-09-2005, 07:28 PM
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ballaratdragons (Ken)
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I can't justify the upgrade either Slick. If I was an 8"er or even a 10"er it would be worth it. But I don't think it will draw in many 12"ers. They do sound cheap though.

A good cheap bargain for newbies
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