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  #41  
Old 14-01-2014, 06:08 PM
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tilbrook@rbe.ne (Justin Tilbrook)
JHT

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No doubt about Jo!

Your very gifted !!

Look forward to your 80mm.

Cheers,

Justin.
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  #42  
Old 15-01-2014, 08:01 AM
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nebulosity. (Jo)
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Quote:
Originally Posted by alistairsam View Post
Hi Jo,

That looks great. very nice work.
yes, goto mounts are very handy. does this mount have an autoguider port or support guiding?
Yes, it's a pretty smart mount, 358,000 object data base, with GPS, permanent PEC, electronic balancing, belt drives, even got a port for dome control!


Quote:
Looking at the pics, if you keep the focuser to one side, it'll end up in odd positions when slewing to different parts of the sky and you'll have an issue with balancing the weight.
is it balanced with the eyepiece?
if you had the find on the other side, that could even it out.
I believe this is for visual use?
its common to have the focuser facing down as that way, balancing in RA is not an issue.
I was planing on putting the guide scope on the other side to balance it, if the focuser is not on the side were would it go I could have it facing down but wouldn't that make it harder for visual? Or it that just for imaging. The scope will probably be mainly used for visual, but fully capable of imaging as well.

Quote:
second thing, do you have plans to make the two fasteners removable or adjustable? reason being you'll have to rotate the tube at some point if you use a different eyepiece that's lighter or heavier or even a camera.
so you'd need to loosen the fasteners, rotate the tube with the camera and then fasten it. I noticed both sides have bolts?
you would also need to loosen it if the OTA needs to be slid up or down again due to differing weights with cameras and eyepieces.
The camera (1100d) is pretty much exactly the same weight as the 24mm eyepiece so I've just had it balanced for them, the other eyepieces are lighter but it's hardly noticeable. I did a good nights observing with it in the same configuration as in the pictures and with a small step stool I was able to comfortable observe everywhere in the sky, this is how I generally observe anyway so it seemed OK.

Quote:
I like the idea of two holes for the mirror cell.
Nice work
Yeah, that worked out every well

Quote:
Edit: one other thing you could do is add a wing nut and a nyloc nut underneath it to the collimation bolts.
that way, you won't need a tool to adjust the bolts. you never know when a re-collimation is needed in the field.
I'm thinking of making some fancy nobs for it, just not sure how to attach them to the bolt heads.

Quote:
Any provision for mounting a dew controller? that'll also be required to keep eyepieces and/or the finder objective dew free. else its a nightmare cause things dew up very fast.
Have had no thoughts about dew heaters, so thanks for reminding me I'll see how that can fit in.

Cheers, and thanks a lot
Jo
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  #43  
Old 15-01-2014, 08:04 AM
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nebulosity. (Jo)
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Quote:
Originally Posted by FlashDrive View Post
How good is that....great job Jo...

I like the ' home made ' bike rack against the fence....awesome....

Col......
Thanks Col


Jo
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  #44  
Old 15-01-2014, 08:06 AM
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nebulosity. (Jo)
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Quote:
Originally Posted by tilbrook@rbe.ne View Post
No doubt about Jo!

Your very gifted !!

Look forward to your 80mm.

Cheers,

Justin.
Thanks Justin, the 80mm should be happening this week, never made a wooden refractor before so will be fun.

Jo
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  #45  
Old 15-01-2014, 11:30 AM
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cometcatcher (Kevin)
<--- Comet Hale-Bopp

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It is both an engineering feat and a work of art.

You remind me of an old engineer mate I had from the 1970's also called Jo that built me my first 8 inch telescope.
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  #46  
Old 24-01-2014, 12:09 PM
guggle (Michael)
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I've only just joined this thread and loved seeing the progress on this scope. Great work Jo, you must be very proud of your work!!

How much does it weigh?
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  #47  
Old 05-05-2014, 08:12 PM
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nebulosity. (Jo)
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Thank you all for your encouragement while building this setup

I have now finished it and here are a few pics of the completed scope. I am sorry I haven't updated in a while.

The fist pic is of the scope and all the equipment that goes with it, then comes a few pics of the scope is self, and then a pic of me and the happy owner. (I am the guy in the purple shirt)

Cheers
Jo
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  #48  
Old 05-05-2014, 09:19 PM
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omegacrux (David)
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Very well done
A beautiful scope
Your work bench is too tidy !

David
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  #49  
Old 06-05-2014, 01:54 PM
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nebulosity. (Jo)
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Quote:
Originally Posted by omegacrux View Post
Very well done
A beautiful scope
Your work bench is too tidy !

David
Thanks David the table took a long time to clean up

Jo

PS, for those who have been following this thread, you will notice that the secondary holder has been changed to an improved design. Better pictures of the of the new design can be seen on my 8" truss newt thread.

Last edited by nebulosity.; 06-05-2014 at 02:06 PM.
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  #50  
Old 06-05-2014, 01:58 PM
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cometcatcher (Kevin)
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You even made a wooden tube for the guidescope! It's so cute.
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  #51  
Old 06-05-2014, 06:25 PM
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FlashDrive (Poppy)
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Very Very Nice Jo ..... job well done ...enormous talent

Col...........
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  #52  
Old 09-05-2014, 10:13 AM
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spinnaker
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That scope is truely a work of art - nice job!
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  #53  
Old 09-05-2014, 11:52 AM
julianh72 (Julian)
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Quote:
Originally Posted by nebulosity. View Post
Thank you all for your encouragement while building this setup

I have now finished it and here are a few pics of the completed scope. I am sorry I haven't updated in a while.

The fist pic is of the scope and all the equipment that goes with it, then comes a few pics of the scope is self, and then a pic of me and the happy owner. (I am the guy in the purple shirt)

Cheers
Jo
Congratulations - an absolute work of art! I want one - are you taking orders? ;-)

How does it perform?

When do you start the build of a hand-made wooden GEM / tripod to complement it?
http://www.cloudynights.com/ubbthrea...0mount%206.jpg

And what about a wooden camera for imaging?
http://www.featurepics.com/FI/Thumb3...ra-1273207.jpg
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