VinSnr 11" f/5!

Here is the place to talk about all those equipment(Telescope, Mounts, Eyepieces, etc...) you have. Not sure which scope/eyepiece is best for you? Trash it out here!
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Tachyon
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Post by Tachyon »

Congrats, Vincent!

What is her name?

Now everyone will want a side-by-side comparison of our Portaball, Obsession, and Astrosky!

Just say when...

Cheers!
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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VinSnr
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Post by VinSnr »

Tachyon wrote:Congrats, Vincent!

What is her name?

Now everyone will want a side-by-side comparison of our Portaball, Obsession, and Astrosky!

Just say when...

Cheers!
err ok..thanks.....but how come u all seems to be more excited than me huh? hehe. Maybe I think I waited for this until sian liow.....almost coming to 10 months already. Almost forgotten I got a scope in US.

I am actually more curious on how that Sky commander work.
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ariefm71
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Post by ariefm71 »

i didn't know vinsnr wants to keep it hush hush .... :-)
btw, i think the picture is just uploaded a few days back.
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mrngbss
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Post by mrngbss »

Cool!! Congrats Vincent!
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rlow
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Post by rlow »

The next Mersing showdown is between the two 12.5" scopes and it is going to happen sooner than you think... :)
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Airconvent
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Post by Airconvent »

wah...so it really is Vincent Senior's scope!
BTW, can I request that as much as possible, all DIY'ers do upload the design plans for their scopes so that it can be shared with other beginners as well...
For dobs, I think the key consideration is balance, I think...
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rlow
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Post by rlow »

are we going off-topic? No definite design plan yet, but I have updated my database... :) I think there are more key considerations than 'balance'. Maybe the veteran DIY guru here can share some pointers. :D
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VinSnr
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Post by VinSnr »

Airconvent wrote:wah...so it really is Vincent Senior's scope!
BTW, can I request that as much as possible, all DIY'ers do upload the design plans for their scopes so that it can be shared with other beginners as well...
For dobs, I think the key consideration is balance, I think...
I have given Astrosky the maximum weight I will use on the focuser before he did the "balancing". I weigh most of my eyepieces and then I give him the heavist and the lightest one. This way, he got a range to work with.

In any event, if the front become too heavy, just get some magnetic weights and put behind.
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Canopus Lim
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Post by Canopus Lim »

The best is to have sliding weights to give accurate balancing. To balance a scope, it has to be back heavy enough and not too heavy also. When removing the heaviest eyepiece, the scope should not tilt up due to the change in balance and also when with the heavy eyepiece, the scope should not tilt down. I did balancing on my scope and found that there is a minimum altitute the scope can be tilted to satisfy this two condition; above or at that altitude the scope will not have balance issues. It is not possible to take out the heaviest eyepiece when the scope is pointing horizontal, as the back will be too heavy. Therefore, it will be good if there is a sliding weight.
AstroDuck
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VinSnr
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Post by VinSnr »

Canopus Lim wrote:The best is to have sliding weights to give accurate balancing. To balance a scope, it has to be back heavy enough and not too heavy also. When removing the heaviest eyepiece, the scope should not tilt up due to the change in balance and also when with the heavy eyepiece, the scope should not tilt down. I did balancing on my scope and found that there is a minimum altitute the scope can be tilted to satisfy this two condition; above or at that altitude the scope will not have balance issues. It is not possible to take out the heaviest eyepiece when the scope is pointing horizontal, as the back will be too heavy. Therefore, it will be good if there is a sliding weight.
Yeah..sliding weights will be good.
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