Go Back   IceInSpace > Equipment > ATM and DIY Projects
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rating: Thread Rating: 4 votes, 5.00 average.
  #41  
Old 14-05-2014, 10:59 PM
glend (Glen)
Registered User

glend is offline
 
Join Date: Jun 2013
Location: Lake Macquarie
Posts: 7,121
It's Finished!

This is pretty much the final post on the build of my iStar 127mm R30 F12 open tube scope.

Even though the full moon was pretty much flooding out the sky, I had it out on the NEQ6 mount tonight for the Saturn Occulation and to test the Sky Safari Pro wifi guiding of the mount (using the Nexus-S attached to the SynScan controller).

Photo is attached.

I let the scope cool in the shed for a couple of hours, fitted the Kendricks Dew Shield, and got it balanced on the mount. It tracked Saturn well and there was no strange mount behaviour, nor weight issues. The scope with 2" diagonal, EP, and 8x50 finder had an all up weight of 9.4kg. OTA alone is 8.4kg, compared to the iStar Asteria 127mm R30 f12 tube based scope at 12.7kg for the OTA.

After watching the Saturn event, I used the opportunty to test my new Televue 5mm Nagler in the scope on Mars and found the detail impressive for the conditions. I finsihed up with a few star tests at various altitudes and they were absolutely concentric with no evidence of collimation shifts due to scope flex.

If there is one thing that I need to address it is to move the dovetail rail forward on the mount board slightly to improve balance point range.

So that's it, thanks for following the build. Now to get it out to a dark site at the next new moon.
Attached Thumbnails
Click for full-size image (DSCF0741.jpg)
124.1 KB142 views
Reply With Quote
  #42  
Old 16-05-2014, 07:28 AM
anj026's Avatar
anj026
Plyscope

anj026 is offline
 
Join Date: Oct 2006
Location: Perth
Posts: 532
Well done Glen. It looks good and will give you a lot of satisfaction observing the night sky.
Reply With Quote
  #43  
Old 16-05-2014, 08:43 AM
Allan_L's Avatar
Allan_L (Allan)
Member > 10year club

Allan_L is offline
 
Join Date: Mar 2008
Location: Central Coast NSW
Posts: 3,339
Well Done Glen !
An amazing journey.
Looking forward to seeing it in use at our Dark Site, shortly.
Have you considered the best way to transport it safely over those rough roads?
Regards
Al
Reply With Quote
  #44  
Old 16-05-2014, 04:55 PM
MattT's Avatar
MattT
Reflecting on Refracting

MattT is offline
 
Join Date: Jul 2011
Posts: 1,216
Very nice Glen.
Nothing quite like sitting behind a long FL refractor at night.
Matt
Reply With Quote
  #45  
Old 16-05-2014, 09:34 PM
cometcatcher's Avatar
cometcatcher (Kevin)
<--- Comet Hale-Bopp

cometcatcher is offline
 
Join Date: Jan 2005
Location: Cloudy Mackay
Posts: 6,542
Good work Glen!

Will you be doing another iStar build, with say an 8" objective?
Reply With Quote
  #46  
Old 16-05-2014, 11:10 PM
glend (Glen)
Registered User

glend is offline
 
Join Date: Jun 2013
Location: Lake Macquarie
Posts: 7,121
Thanks for the kind comments. Would I build an 8" - I might but I think I will wait awhile, as I have a lot to learn about refractors on equatorial mounts and I want to get the Canon DSLR going on the back of the iStar.
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 08:11 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement