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Meet the Problem Child

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#51 bierbelly

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Posted 24 November 2021 - 09:17 PM

Cork spacers on the cell points?
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#52 clamchip

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Posted 24 November 2021 - 11:56 PM

Good idea!

The cork will keep the mirror from sliding around too freely is what I think your

thinking, great idea!

So far everything has been okay. I've been watching the collimation to see if the

primary's thin side slips around until it looses contact with the cell points.

 

Robert


Edited by clamchip, 24 November 2021 - 11:58 PM.


#53 clamchip

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Posted 25 November 2021 - 11:40 AM

 One thing is for sure, if I ever transport the scope to another site the primary and its cell

will need to be removed from the scope and placed in a mirror box.

This would not be a very big deal and worth the effort to have 10 inches of aperture in

eastern Washington or the San Juan islands.

Its not as dark here as it was. I can't see the little dipper anymore. I can still see the milky

way but I can't read a book by it like in eastern Washington.

The last time I camped in eastern Wash I laid awake in my sleeping bag I don't remember

sleeping, just took in the marvelous sky show.

I hear east Oregon is even darker, I haven't experienced it myself though. 

 

Robert


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#54 ccwemyss

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Posted 25 November 2021 - 11:59 AM

I’ve camped at the top of Steens Mountain in the SE corner of Oregon, back when I had my C8. Nearest streetlight was 50 miles away at that time. It was amazing. M31 and M33 were both naked eye visible with discernible extent. Jupiter was casting strong shadows, and I could read star charts by its light. The Milky Way through Cygnus was dazzling. So many stars that it was hard to pick out some constellations. You can drive to the top, and it would be a great spot for a big dob.
 

Even when I was observing at Kitt Peak, it wasn’t as good because of the light from Tucson. By an interesting coincidence, it was necessary to take shelter from a thunderstorm both times. Quite a thrill to be on top of a bare mountain with lightning striking all around. 
 

Chip W.


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#55 clamchip

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Posted 26 November 2021 - 03:03 PM

Here's my finder for the Problem Child.

This fits in the Telrad base.

I ordered 6-point rings from SVBony because it looks classy.

The ring assy mounts into a standard Vixen shoe I have mounted

on a Scope Stuff laser pointer base which mounts into the Telrad base.

The finder is a Coast Instruments Treckerscope Galaxy 7X50mm.

Very sharp, excellent fine wire crosshairs, wide field, very high quality.

No more neck pain, and I'm going to live with the permanently stuck 

on Telrad base like a good boy.

Robert

 

IMG_0552.jpg

 


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#56 badback

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Posted 26 November 2021 - 05:08 PM

From Clamchip, Post #50:

 

"I know from experience if you try and remove a Telrad base you will scalp your scope.

The attempted base removal with heat, fishing line, dental floss, etc will remove the
cardboard 'skin' and there's a big repair job in your future.

I recommend leave it be and work with it."

 

Obey the Chip or you will Rip it...Rip it good

 

TelRadRipper.jpg

 

 


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#57 Garyth64

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Posted 27 November 2021 - 08:55 AM

I recently took a Telrad and its base of a Meade red tube 826.  I was concerned about the old double stick tape.  The base was firmly attached.

 

It took a while, and patience, but I used alcohol applied with q-tips on the tape, and eventually it started to loosen up.  I did not want to force it off as I was afraid it might peel the paint.  The tape became soaked with the alcohol  and the base eventually came off, but there were still remnants of tape on it and the tube.  I just continued with the alcohol and rubbed with my fingers.  The tape came off the tube leaving no marks.  Same on the base.  It was like it was never there.

 

Red Meade 2.jpg


Edited by Garyth64, 27 November 2021 - 09:00 AM.

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#58 clamchip

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Posted 27 November 2021 - 12:54 PM

Over the years I've repaired Telrad damage.

Top photo I gooped on some filler, sanded smooth and rollered on some

latex house paint.

Bottom photo I used thinned with water Elmer's glue to bring down all the

fuzzies and sealed it with model airplane sealer/filler. I couldn't find a suitable

paint match for the old tube so I decided it was good job bob.

Robert

 

post-50896-0-35571000-1498087688_thumb.jpg

post-50896-0-49752900-1498087706.jpg

post-50896-0-06096600-1602975497_thumb.jpg

 


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#59 deSitter

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Posted 02 December 2021 - 12:07 AM

ArmorAll is very slippery stuff.

I remember kind of yelling at my Dad when he thought he was doing me a favor by using it on my Harley Sportster's vinyl seat.

I felt bad about it later but had already found out the hard way how it made it very hard to stay firmly seated on a motorcycle.

"If you can read this we both fell off" :)

 

-drl


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#60 deSitter

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Posted 02 December 2021 - 12:11 AM

 One thing is for sure, if I ever transport the scope to another site the primary and its cell

will need to be removed from the scope and placed in a mirror box.

This would not be a very big deal and worth the effort to have 10 inches of aperture in

eastern Washington or the San Juan islands.

Its not as dark here as it was. I can't see the little dipper anymore. I can still see the milky

way but I can't read a book by it like in eastern Washington.

The last time I camped in eastern Wash I laid awake in my sleeping bag I don't remember

sleeping, just took in the marvelous sky show.

I hear east Oregon is even darker, I haven't experienced it myself though. 

 

Robert

We are making plans for a road trip to the Big Bend area of Texas for the 2024 eclipse. That is Bortle 1 land. I am very lucky in my Big Southern City to have dark places at a reasonable distance (< 100 mi).

 

-drl



#61 clamchip

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Posted 05 December 2021 - 11:34 AM

I built a off-axis aperture stop to the specs given in the Coulter Operating Guide.

I've never stopped down a telescope before, this should be interesting.

According to the guide it turns a 10 inch f/4.5 Odyssey into a unobstructed Herschelian telescope.

I'm guessing because the port in the aperture stop is 4 inch it must now be a 4 inch. The focal length

remains the same so now the focal ratio is f/12, unless I'm missing something.

 

Robert

 

IMG_0555.jpg

 

 

 

 

 



#62 Terra Nova

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Posted 05 December 2021 - 01:04 PM

If the telrad base is attached to metal, (painted, powder-coated, or otherwise), a really good way to remove it is to warm it up with a hair dryer, (not a heat gun; that will bubble the paint and melt the telrad base!).


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#63 clamchip

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Posted 09 January 2022 - 12:59 PM

Who ever dreamed The Problem Child would become my primary telescope, she is.

Its changed my life really.

With my new scope I've shifted away from "telescope hunter rebuilder tester" to being more of a observer

like I was when I was younger.

There will be others, there will always be others, but the Odyssey is so fulfilling I don't have any reason to

look at other telescopes.

My mom said I was easy to please when I was a baby, give him a potted plant and I was quiet for hours.

 

Robert


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#64 deSitter

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Posted 09 January 2022 - 01:22 PM

I'll dust off my tester and give it a try.

I've never used it before so it will be new to me. I built it from Sam Brown's plans in

All about Telescopes and the plans include detailed instructions on how to use it.

Robert

 

attachicon.gifpost-50896-0-40389400-1583710024.jpg

attachicon.gifpost-50896-0-95346500-1583710037.jpg

I built this as a kid and now I want another one! I have the book! Time to bust out the saw!

 

-drl


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#65 Kasmos

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Posted 09 January 2022 - 01:35 PM

There will be others, there will always be others, but the Odyssey is so fulfilling I don't have any reason to

look at other telescopes.

 

 

Robert

Get back to us in a week or so. waytogo.gif


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