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Skywatcher AZ-GTi for people who don't do Astro Photography

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83 replies to this topic

#51 Adeema

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Posted 14 October 2019 - 12:48 AM

Well I got it back today. I’m told a SW rep came to fix it in shop. 

 

While he certainly did something and the stiff axis now moves, it’s definitely not smooth enough. There’s enough friction that renders any fine movement very difficult.

 

Sent it back for another try. 



#52 Astrodave

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Posted 15 October 2019 - 07:49 AM

You'll find that smoothing out the axis comes at the expense of massive backlash. They did that to mine and it came back with a ton of backlash. It moves diagonally now when I press the up or down buttons until it catches. It's going back now for another repair as soon as I can arrange it with SW. Hopefully later this week. The goto is still hit or miss even with the axis reworked. It would probably work pretty well with plate solving programs although I have never tried it but with the synscan app and mobile device the goto is subpar with anything > 40x.



#53 Don W

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Posted 24 October 2019 - 09:13 PM

Switched out my old Atlas Vixen dovetail puck for a Losmandy D dovetail some time back. Today I cut off the tapered back of the puck and then drilled it to fit my AZ-GTi mount. Give much bigger surface area to hold a scope and dovetail.

 

Back of Atlas puck after removing tapered ring.
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Holes drilled and countersunk

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Bolted to AZ GTi mount

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From the side

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My Astrotech 72 on mount

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#54 ron scarboro

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Posted 25 October 2019 - 03:45 PM

How is the performance in EQ mode?  Any less precision in pointing, alignment and tracking?



#55 Don W

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Posted 25 October 2019 - 07:35 PM

Haven't tried it yet in EQ.



#56 dr.who

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Posted 26 October 2019 - 02:58 PM

The primary reason for EQ mode would be imaging. There is another thread in this forum that goes into great detail on using this mount for imaging. It can be found Here.

 

This thread is for visual use only. If you are using the mount in EQ mode for visual... OK, horses for courses I guess but alt/az is more comfortable in my opinion...


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#57 ron scarboro

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Posted 26 October 2019 - 11:06 PM

Sure, I get that.  However, I was just curious if the mount worked well with the software in EQ mode.



#58 dr.who

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Posted 27 October 2019 - 12:07 AM

Reports in the imaging thread are that it performs acceptably in EQ mode with some jiggery pokery. 


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#59 f300v10

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Posted 30 October 2019 - 08:48 PM

Does anyone else have issues with the Synscan Pro app hanging or dying during the alignment process? I have an iPhone XR running iOS 13 and the latest version of the Synscan Pro app (1.17.1).  When using the Level/North alignment method  the app invariably crashes or hangs while I'm attempting to center the second star.

 

Also, is there a general consensus on which alignment routine works best?  I prefer the level north, but perhaps I should try 3 star.



#60 cst4

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Posted 06 November 2019 - 10:06 AM

I love my AZ-GTI.  Bought just the head from FLO last year and received it in just 6 days (live in GA).  Got it on my Bogen 475 and it is very stable.  I mostly use it with my Lunt 102ED, which can be near the 11 lbs capacity with accessories.  Some shakes while focusing, but easily just as sturdy as my Porta mount.

 

DSC05259 - smaller.jpg

 

And I know this is a visual only thread but wanted to add that I've connected my DSLR to my 102ED and taken several pics tracking in alt-az.  I can consistently get 30 second subs at 714mm focal length with no visible star trailing (some light field rotation maybe).  I just think it shows how good this mount can actually track, even when loaded near its stated capacity limit.

 

 

 

 


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#61 semej

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Posted 31 January 2020 - 12:55 AM

I'm glad I found this thread. Thank you, dr. who, for starting it! I hated the thread where both mods are discussing.

 

Sergey


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#62 Shopaholic

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Posted 31 January 2020 - 05:42 PM

I see some have counterweights and some don’t. Do you need the weights for visual? Where  is the rod and weights , does the skywatcher pro stuff work?



#63 Spikey131

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Posted 31 January 2020 - 08:51 PM

I have made only two mods to this excellent mount.  One is an ADM dovetail adapter which does a better job holding my scope than the stock one.  The other is a Feisol PB-70 panoramic base, a la Troy, which make this mount a much more useable manual AZ mount.

 

https://www.cloudyni...-for-tight-az/?

p=https://www.admacces...vetail-adapter/

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Edited by Spikey131, 31 January 2020 - 09:04 PM.

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#64 Spikey131

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Posted 31 January 2020 - 08:59 PM

I found an identical AA battery holder online and filled it with Enloop AA batteries for a backup:  

 

https://www.parts-ex...nMaAmZ_EALw_wcB

 

I like having backup batteries.  But on a recent trip to the Florida Keys, I used the mount about 8-10 hours and the batteries never died.

 

For travel, I use a Gitzo Traveler 2 carbon fiber tripod.  This carries a TV 76 refractor with minimal shakes.

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Edited by Spikey131, 31 January 2020 - 09:27 PM.

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#65 Spikey131

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Posted 31 January 2020 - 09:02 PM

Travel companions

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#66 Spikey131

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Posted 31 January 2020 - 09:13 PM

If I am not flying, I can carry bigger gear.  The AZ-GTI will handle a 4” refractor like the NP 101, but it needs a better tripod.  With a bit of hardware from McMaster-Carr, it will go on a TV Gibraltar 5 tripod:

 

 

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#67 Spikey131

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Posted 31 January 2020 - 09:35 PM

In waterproof boxes:

 

 

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#68 dr.who

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Posted 01 February 2020 - 12:31 AM

I'm glad I found this thread. Thank you, dr. who, for starting it! I hated the thread where both mods are discussing.
 
Sergey



You’re welcome 

#69 dr.who

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Posted 01 February 2020 - 12:32 AM

I see some have counterweights and some don’t. Do you need the weights for visual? Where  is the rod and weights , does the skywatcher pro stuff work?


You do not need that. It is for EQ mode which is for imaging

#70 ANKry

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Posted 25 February 2020 - 12:59 PM

My mount option is powered by a power bank, on the balcony.

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#71 cuivienor

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Posted 26 February 2020 - 03:10 AM

For the fun, I loaded my C9.25 on my AZ-GTi in Alt-Az, along with CW shaft and 5kg CW on it. It slew like it was nothing (well balanced in both axis), but yes, the scope was wobbly. Surprisingly usable though. Looked at Venus and M42 without issue, the GoTos were good.

 

An extreme example of abusing an AZ-GTi :)


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#72 dr.who

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Posted 26 February 2020 - 08:37 AM

Wow you overloaded it by 100%+! Way more than my 50%...


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#73 Kunama

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Posted 26 February 2020 - 09:25 PM

I finished 'optimising' my Grab&GoTak-AZ-GTi today grin.gif

 

Now fitted with a new dovetail clamp, 3000mA Lithium Power Pack, Synscan Handset/Lynx cable, holder for the handset, shortened pier, RRS TVC-23 tripod

Also fitted new rings and dovetail bar to the FOA60Q ...

 

 

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#74 ANKry

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Posted 02 March 2020 - 11:43 AM

For the exact installation of the tripod in a horizontal position, I made this device. Now it’s easy to adjust the spirit level tripod.

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#75 SJMarty

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Posted 12 March 2020 - 07:31 PM

Got a used one off of CN Classifieds. Stuck it on a Meade 884 tripod that has a built in wedge. Haven't had it out yet, but looks pretty good.

 

attachicon.gif71107032_2726799710666060_3424025890617556992_n.jpg

 

attachicon.gif70787205_2726799807332717_3767379268615536640_n.jpg

Hi Don,

 

Curious about the plate on the Meade 884 tripod.  Did you have to drill the center hole in the top plate?  I found a used 884 but the pictures only show two holes (and not one in the center).  I don't have a drill press and wouldn't trust myself to free-hand it.

 

Thanks.




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