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Old 18-02-2008, 11:11 AM
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doug_parkes
Sylvania NSW

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first post

hi, I have just joined Ice in Space.

I bought a new C 9.25 CPC last week.

I was surprised by just how heavy it is and it is a bit awkward to fit into my car/s.

I am fitting a sliding counter-weight system to the OTA to counter balance the various heavy eyepieces and 2 inch diagonal that I use in it. I have a Nagler 13 and 20 plus a TeleVue 32 and 40.

I also own a C8 NexStar and a home-built 381 mm Dob, fitted with Stellar Cat go-to and an Argo Navis DTC.

The CPC is for club field nights when I am too lazy to set up/tear-down the Dob or when I am not modifying it to improve its performance.

Doug (a member of SASi—www.sasi.net.au)
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  #2  
Old 18-02-2008, 11:13 AM
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rmcpb (Rob)
Compulsive Tinkerer

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Welcome to IIS Doug :-)
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Old 18-02-2008, 11:21 AM
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goober (Doug)
No obs, raising Harrison

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IIS can't have enough Doug's. Welcome aboard
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Old 18-02-2008, 11:55 AM
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dugnsuz (Doug)
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Quote:
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IIS can't have enough Doug's. Welcome aboard
Well said, welcome...
Doug
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Old 18-02-2008, 03:47 PM
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g__day (Matthew)
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Welcome aboard - hope you enjoy the CPC - interested to hear what you think of its focuser!

Matthew
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Old 18-02-2008, 05:04 PM
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Matty P (Matt)
Star Struck

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Welcome to IIS Doug.

I hope you enjoy your new scope and clear skies
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Old 18-02-2008, 08:53 PM
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Welcome to the forum Doug. I spoke to you at lengths one night on a SASI viewing session at Waterfall. I think I picked your brains out on your Obsession clone - its a beauty. I was really impressed how the truss poles connected to the lower tube assembly, very unique.

BTW: I must attend SASI again soon, I'm in the bad 'books' no pun intended with Vic!

Norm
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Old 21-02-2008, 09:32 PM
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doug_parkes
Sylvania NSW

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dobsonian truss pole locking seat

Quote:
Originally Posted by norm View Post
Welcome to the forum Doug. I spoke to you at lengths one night on a SASI viewing session at Waterfall. I think I picked your brains out on your Obsession clone - its a beauty. I was really impressed how the truss poles connected to the lower tube assembly, very unique.

BTW: I must attend SASI again soon, I'm in the bad 'books' no pun intended with Vic!

Norm
hi Norm, yes, the truss pole locking system operates very well indeed. The surprising thing is that it is one of the three methods recommended by Dave Krieg in his book about how to make a dobsonian telescope. Admittedly, making the truss pole seats requires a lathe but the resulting pole locking is outstanding and I cannot understand why everyone else doesn't use that same design! In my dob I have also designed a secondary mirror holder that can be accurately adjusted by hand (without any tools) even when wearing a thick winter glove! This design makes collimation very very easy. I believe the design to be unique. I haven't seen it copied yet. Regards, Doughttp://www.iceinspace.com.au/forum/....es/happy19.gif
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  #9  
Old 22-02-2008, 01:11 AM
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GTB_an_Owl (Geoff)
bewise betold neverbecold

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well - lets have a look at it then Doug

and by the way - WELCOME

geoff
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  #10  
Old 23-02-2008, 01:58 PM
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leon
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Yep Doug, give us a look, looks like you have some serious stuff at your place.

Leon.

PS, there goes post 2999, any prizes for the 3000th post.
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