[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [ATM] 6-pole
Rob,
Here are a few. I don't have my own website.
http://stellafane.org/post_conv/2005_conv/2005_mechanical.html
http://stellafane.org/post_conv/2005_conv/2005_craftsmanship.html
http://dvaa.org/php/pic.php?i=/Photos/Stellafane2005/ScottEwartSplitRingEqu1
2_BJ.jpg&n=ScottEwartSplitRingEqu12_BJ&d=Photos/Stellafane2005
http://dvaa.org/php/pic.php?i=/Photos/Stellafane2005/ScottEScope_JH.jpg&n=Sc
ottEScope_JH&d=Photos/Stellafane2005
I hope these links don't break. Or go down the list here and look
for my name. There are more shots with more detail.
http://dvaa.org/php/idir.php?d=Photos/Stellafane2005
Scott
-----Original Message-----
From: Rob O'Toole [mailto:albireo13@comcast.net]
Sent: Tuesday, April 08, 2008 9:46 PM
To: Scott Ewart
Subject: Re: [ATM] 6-pole
Scott,
Your scope sounds neat. Do you have any pics?
Rob
On Apr 8, 2008, at 9:43 PM, Scott Ewart wrote:
> Rob,
> I built my 12.4" split ring using 6 poles. It saves weight, it fits
> better with my three-vane spider, and with my round "bucket"
> allowing a
> rotating tube, there are no mounting point issues. Looking in the
> front
> end, "down the barrel", you can easily see what Richard refers to.
> It's
> much more striking than with 8 poles. The tubes appear to "bend"
> inward as
> they cross by the aperture, so you do need to account for that in your
> design and be sure there's enough room in between the middle of the
> 6 poles.
> Alex also brings up an important point about a shroud. Keep in mind
> that at each end of the scope, there are essentially only 3 points
> supporting the shroud, allowing it to cross into the light path. I
> solved
> this by adding 6 strings (ultra-thin bungees) between the poles.
> If you're
> looking for quicker set-up time or simplicity, this may complicate
> things
> too much for you.
> I've had mine a few years now and still haven't tired of any of the
> complications. I really love the scope. It's up to you.
>
> Scott Ewart
>
>
>
_______________________________________________
ATM mailing list http://www.atmlist.net/