Page 1 of 2 12 LastLast
Results 1 to 10 of 14
Like Tree13Likes

Thread: Article: How to Fine Tune an Atlas Pro AZ EQ Telescope Mount

  1. #1
    UlteriorModem's Avatar
    UlteriorModem is online now HYPER GIANT
    Points: 83,313, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Most Threads Award
    Join Date
    Oct 2015
    Location
    Tallahasse Florida
    Posts
    16,745
    Points
    83,313
    Level
    100
    Thanks
    2,275
    Thanked 4,189x 3,542 Posts
    Blog Entries
    4

    Default How to fine tune an Atlas Pro AZ/EQ mount!



    This is an easy check and tune up of the Atlas Pro AZ/EQ mount head. Many other heads in the EQ6 class are quite similar!

    It is really easy and only requires the minimum of 'tear down'.

    I am only doing the DEC axis but the RA is the same but similar.



    Here is the mount head off the pier and ready for it's TLC!



    I start by removing the dovetail mount shoe. You don't really have to do this but it makes it much easier to get to some things in the next few steps. There are 3 grub screws 3mm socket I think. Loosen all three and the head should come off easly.



    The dovetail shoe removed.



    Next I remove the counter weight bar. It just slides out. You don't have to but again it makes things easier to work with. Just don't forget to put it back when you put the shoe back on



    Now remove the stepper drive cover plate. 4 screws, easy.



    This reveals the stepper motors and their drive belts.
    bladekeeper likes this.
    Scopes: Orion 130mm APO Triplet, Orion 8" f4 astrograph, 10" RC Mount: Celestron CGX-L Guiding: Orion 60mm f4 scope, Starlight Loadstar, PHD2 software - Cams: Planetary: ASI120mc, DSO:Atik 383L+, SGPsoftware Processing : Regisax, Deep Sky Stacker, Star Tools, Pixinsight Assistant: One very large cat
    ~ Put your money where your mount is ~


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  2. #2
    UlteriorModem's Avatar
    UlteriorModem is online now HYPER GIANT
    Points: 83,313, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Most Threads Award
    Join Date
    Oct 2015
    Location
    Tallahasse Florida
    Posts
    16,745
    Points
    83,313
    Level
    100
    Thanks
    2,275
    Thanked 4,189x 3,542 Posts
    Blog Entries
    4

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!



    There is a grub screw that 'hides' the belt tension bolt its the upper one shown here.



    Remove it completely it is just a plug to fill the hole.



    Once its removed a 2.5mm (I think) hex key is inserted down into the hole and try to find the seat of the belt tension bolt.



    In this close up you can clearly see the belt tension bolt 'pressing' against the stepper motor. Back it off a ways, then loosen the 3 bolts that hold the stepper in place.



    Once that is done you can move the stepper and put enough slack in the drive belt to remove it.
    bladekeeper and Dxer like this.
    Scopes: Orion 130mm APO Triplet, Orion 8" f4 astrograph, 10" RC Mount: Celestron CGX-L Guiding: Orion 60mm f4 scope, Starlight Loadstar, PHD2 software - Cams: Planetary: ASI120mc, DSO:Atik 383L+, SGPsoftware Processing : Regisax, Deep Sky Stacker, Star Tools, Pixinsight Assistant: One very large cat
    ~ Put your money where your mount is ~


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  3. #3
    UlteriorModem's Avatar
    UlteriorModem is online now HYPER GIANT
    Points: 83,313, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Most Threads Award
    Join Date
    Oct 2015
    Location
    Tallahasse Florida
    Posts
    16,745
    Points
    83,313
    Level
    100
    Thanks
    2,275
    Thanked 4,189x 3,542 Posts
    Blog Entries
    4

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!



    Now loosen the 4 bolts that hold the carrier onto the heat. Just a little loose not too much. Just enough so the head can 'move' but not wiggle around or have slop in it.



    This little hole is the access to the bolt that adjust the gear mesh tension. This is what its all about This is the top hole, there is another on the bottom. I refer to the bolt in this hold as the 'pull' bolt the one on the bottom is the 'push' bolt.



    A 2.5mm hex key is used to adjust.



    Here is the bottom or the 'push' bolt.



    Prop the head up on a box or something so it can rotate freely without striking the table. Lightly tighten the clutch.
    bladekeeper and Gabby76 like this.
    Scopes: Orion 130mm APO Triplet, Orion 8" f4 astrograph, 10" RC Mount: Celestron CGX-L Guiding: Orion 60mm f4 scope, Starlight Loadstar, PHD2 software - Cams: Planetary: ASI120mc, DSO:Atik 383L+, SGPsoftware Processing : Regisax, Deep Sky Stacker, Star Tools, Pixinsight Assistant: One very large cat
    ~ Put your money where your mount is ~


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  4. #4
    UlteriorModem's Avatar
    UlteriorModem is online now HYPER GIANT
    Points: 83,313, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Most Threads Award
    Join Date
    Oct 2015
    Location
    Tallahasse Florida
    Posts
    16,745
    Points
    83,313
    Level
    100
    Thanks
    2,275
    Thanked 4,189x 3,542 Posts
    Blog Entries
    4

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!

    Ever so slightly loosen the bottom 'push' bolt like 1/8 turn or less.

    Ever so slightly tighten the top 'pull' bolt like wise.



    Stick something like a pencil or I used a paint brush end into one of the holes in the drive gear and spin it around. Do you feel a little resistance? If not repeat the above two steps very slightly until you do.

    Now that you feel a little resistance slightly loosen the top bolt, and slightly tighten the bottom bolt. Tiny amounts, like a few degrees until you feel the resistance ease up. You can actually do this while spinning the drive gear and find that 'just right' zone.

    Almost done! Now spin the drive gear around and around until the head makes a complete revolution! Feel for any catches or drags as it is spun. You will probably find at least one spot that does. If you do make the slightest of adjustments as described above until you can spin the drive gear around and around and the head makes a full 360 degree revolution without any snags or binds.

    Now tighten the 4 bolts on the carrier head and double check the movement for smooth bind free movement. If it feels good your good to go!

    Just re-assemble in the reverse order and don't forget that dang weight bar Slip the drive belts on and adjust the belt tension screws till the belt is snug but not overly tight and tighten the 3 bolts that hold the stepper.

    This will probably will result in a small amount of backlash but that is the nature of the beast. Rest assured you have fine tuned your gear mesh Just balance a little east heavy and your golden.

    Congrats on a job well done !
    bladekeeper, MikeWest and sketrip like this.
    Scopes: Orion 130mm APO Triplet, Orion 8" f4 astrograph, 10" RC Mount: Celestron CGX-L Guiding: Orion 60mm f4 scope, Starlight Loadstar, PHD2 software - Cams: Planetary: ASI120mc, DSO:Atik 383L+, SGPsoftware Processing : Regisax, Deep Sky Stacker, Star Tools, Pixinsight Assistant: One very large cat
    ~ Put your money where your mount is ~


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  5. The Following User Says Thank You to UlteriorModem For This Useful Post:

    sketrip (03-02-2017)

  6. #5
    Gabby76's Avatar
    Gabby76 is online now Super Moderator
    Points: 78,648, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 99.9%
    Achievements:
    2 Posts Achievement20 Posts Achievement!Gallery Achievement!Album Achievement!50 Posts Achievement!
    Awards:
    Hyperactive Geek - Silver 2rst place for Activity!
    Join Date
    Jan 2016
    Location
    Live: Slovakia Work: Canada
    Posts
    18,241
    Points
    78,648
    Level
    100
    Thanks
    3,432
    Thanked 5,745x 4,820 Posts
    Blog Entries
    4

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!

    Nice write up UM
    UlteriorModem likes this.
    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
    Mounts: Celestron SLT w/ pier mod & EQ-3 tripod, Celestron hypertuned CG-5 w/ tracking motor & Argo Navis, Manfrotto 028B w/ Stellarvue M2C, Manfrotto 055PRO w/ 128RC, TAL-1 HD EQ, Vixen SXP w/ HAL-130 SXG & half pier Diagonals: 2" Astro-Physics MaxBright, 2" Zeiss/ Baader prism, 2" Baader Herschel Wedge (Photo Version), 2"
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    Amici prism, 2" Stellarvue Dielectric, 2" TeleVue Everbrite Eyepieces: A-Z

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    The weakest link in the optical chain is the large nut located directly behind the
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    / camera. - Gabrielle

    Ya gotta keep this Apo/
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    thing in some balance of perspective. Apos are awesome, but long focus Achros aren't that far behind them - Siriusandthepup (CN)

    Refractors kick arse precisely because they don't hide behind excuses. That is, they have no obstructions to hide behind. - Jon Isaacs (CN)

  7. The Following User Says Thank You to Gabby76 For This Useful Post:

    UlteriorModem (03-01-2017)

  8. #6
    UlteriorModem's Avatar
    UlteriorModem is online now HYPER GIANT
    Points: 83,313, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Most Threads Award
    Join Date
    Oct 2015
    Location
    Tallahasse Florida
    Posts
    16,745
    Points
    83,313
    Level
    100
    Thanks
    2,275
    Thanked 4,189x 3,542 Posts
    Blog Entries
    4

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!

    Thanks, I had the head off because its supposed to rain here soon so figured I may as well check it. I do it a couple of times a year and with practice takes less than a half hour.

    I forgot to mention that if you do the other axis (and you should) to take the dang yoke off it will make things a lot easier
    Gabby76 likes this.
    Scopes: Orion 130mm APO Triplet, Orion 8" f4 astrograph, 10" RC Mount: Celestron CGX-L Guiding: Orion 60mm f4 scope, Starlight Loadstar, PHD2 software - Cams: Planetary: ASI120mc, DSO:Atik 383L+, SGPsoftware Processing : Regisax, Deep Sky Stacker, Star Tools, Pixinsight Assistant: One very large cat
    ~ Put your money where your mount is ~


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  9. #7
    bladekeeper's Avatar
    bladekeeper is offline Super Moderator
    Points: 297,546, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 100.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Activity Award
    Join Date
    Aug 2014
    Location
    Lowell, Arkansas, USA
    Posts
    38,226
    Points
    297,546
    Level
    100
    Thanks
    28,768
    Thanked 17,434x 11,920 Posts

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!

    Nice presentation, Tom! You did good, sir!
    UlteriorModem likes this.
    Bryan

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    :
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    f/5; Celestron C6-R f/8; ES AR127 f/6.4; ES AR127 f/9.4; Stellarvue SV102T f/7; ES AR102 f/9.8;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    MC90 f/13.3;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ST80A f/5; Celestron Premium 80 f/11.4; Celestron C80 f/11.4; Meade NG60 f/10
    Mounts: Celestron AVX; Bresser EXOS-2; ES Twilight I; ES Twilight II; iOptron Cube-G; AZ3/wood tripod; Vixen
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    Eyepieces: GSO Super Plössl 40mm, 32mm, 15mm, 9mm; ES 82° Series; GSO Superview 30mm; Celestron Plössl 26mm, 20mm; ES 70° 25mm; ES Plössl 25mm; Vite Aspheric 23mm, 10mm, 4mm; Orion Expanse 20mm, 9mm; KK Ortho 18mm, 12.5mm; Bresser 70° 15mm; Coulter Optical 12.5mm; BCO 10mm; ES 62° 9mm; Zhumell Z Series 5mm
    Binoculars: Pentax PCF WP II 10×50, Bresser Corvette 10×50, Bresser Hunter 16×50 and 8×40, Garrett
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    12×60 LW, Gordon 10×50, Apogee 20×100

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    Galaxy Hunter's Creed - When you play whack-a-mole, sometimes you hit 'em on the head, sometimes you miss 'em. But its always fun to play, and if you don't play, you ain't gettin no moles! - KT4HX

  10. The Following User Says Thank You to bladekeeper For This Useful Post:

    UlteriorModem (03-01-2017)

  11. #8
    UlteriorModem's Avatar
    UlteriorModem is online now HYPER GIANT
    Points: 83,313, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Most Threads Award
    Join Date
    Oct 2015
    Location
    Tallahasse Florida
    Posts
    16,745
    Points
    83,313
    Level
    100
    Thanks
    2,275
    Thanked 4,189x 3,542 Posts
    Blog Entries
    4

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!

    Thanks, I just wish there was a better way to present 'articles' I tried the blog route but it was a nightmare and it keeps putting my posts out of order
    Scopes: Orion 130mm APO Triplet, Orion 8" f4 astrograph, 10" RC Mount: Celestron CGX-L Guiding: Orion 60mm f4 scope, Starlight Loadstar, PHD2 software - Cams: Planetary: ASI120mc, DSO:Atik 383L+, SGPsoftware Processing : Regisax, Deep Sky Stacker, Star Tools, Pixinsight Assistant: One very large cat
    ~ Put your money where your mount is ~


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

  12. #9
    bladekeeper's Avatar
    bladekeeper is offline Super Moderator
    Points: 297,546, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 100.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Activity Award
    Join Date
    Aug 2014
    Location
    Lowell, Arkansas, USA
    Posts
    38,226
    Points
    297,546
    Level
    100
    Thanks
    28,768
    Thanked 17,434x 11,920 Posts

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!

    Wonder if it would work better here: Astronomy Article Forum

    Not sure of the parameters of that, though. I've never submitted one.
    UlteriorModem likes this.
    Bryan

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    :
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    f/5; Celestron C6-R f/8; ES AR127 f/6.4; ES AR127 f/9.4; Stellarvue SV102T f/7; ES AR102 f/9.8;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    MC90 f/13.3;
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ST80A f/5; Celestron Premium 80 f/11.4; Celestron C80 f/11.4; Meade NG60 f/10
    Mounts: Celestron AVX; Bresser EXOS-2; ES Twilight I; ES Twilight II; iOptron Cube-G; AZ3/wood tripod; Vixen
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    Eyepieces: GSO Super Plössl 40mm, 32mm, 15mm, 9mm; ES 82° Series; GSO Superview 30mm; Celestron Plössl 26mm, 20mm; ES 70° 25mm; ES Plössl 25mm; Vite Aspheric 23mm, 10mm, 4mm; Orion Expanse 20mm, 9mm; KK Ortho 18mm, 12.5mm; Bresser 70° 15mm; Coulter Optical 12.5mm; BCO 10mm; ES 62° 9mm; Zhumell Z Series 5mm
    Binoculars: Pentax PCF WP II 10×50, Bresser Corvette 10×50, Bresser Hunter 16×50 and 8×40, Garrett
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    12×60 LW, Gordon 10×50, Apogee 20×100

    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

    Galaxy Hunter's Creed - When you play whack-a-mole, sometimes you hit 'em on the head, sometimes you miss 'em. But its always fun to play, and if you don't play, you ain't gettin no moles! - KT4HX

  13. The Following User Says Thank You to bladekeeper For This Useful Post:

    UlteriorModem (03-02-2017)

  14. #10
    UlteriorModem's Avatar
    UlteriorModem is online now HYPER GIANT
    Points: 83,313, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Overall activity: 27.0%
    Achievements:
    2 Posts Achievement20 Posts Achievement!5 Threads Achievement!50 Posts Achievement!200+ Posts Achievement!
    Awards:
    Most Threads Award
    Join Date
    Oct 2015
    Location
    Tallahasse Florida
    Posts
    16,745
    Points
    83,313
    Level
    100
    Thanks
    2,275
    Thanked 4,189x 3,542 Posts
    Blog Entries
    4

    Default Re: How to fine tune an Atlas Pro AZ/EQ mount!

    Hrm that just looks like a sub section. Maybe just move the thread over there. It probably doesent belong in 'beginners' anyhow.
    Scopes: Orion 130mm APO Triplet, Orion 8" f4 astrograph, 10" RC Mount: Celestron CGX-L Guiding: Orion 60mm f4 scope, Starlight Loadstar, PHD2 software - Cams: Planetary: ASI120mc, DSO:Atik 383L+, SGPsoftware Processing : Regisax, Deep Sky Stacker, Star Tools, Pixinsight Assistant: One very large cat
    ~ Put your money where your mount is ~


    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.

 

 
Page 1 of 2 12 LastLast

Similar Threads

  1. Hmph! Might have to fine-tune my mount.
    By KathyNS in forum Astronomy Reports Forum
    Replies: 6
    Last Post: 03-30-2014, 07:39 AM
  2. Replies: 0
    Last Post: 09-16-2013, 03:09 PM
  3. places/persons recommended for mount tune-ups or repairs?
    By tedrampart in forum Canadian Astronomy Forum
    Replies: 4
    Last Post: 02-10-2012, 06:39 PM
  4. I Figured a way to fine tune my wedge with my Iphone
    By Refired in forum Astronomy Beginners Forum
    Replies: 3
    Last Post: 09-12-2011, 04:04 AM
  5. Hyper-Tune an Atlas EQ-G
    By Joe Lalumia in forum Telescope Mounts Forum
    Replies: 3
    Last Post: 08-25-2010, 12:19 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.0
Powered by vBulletin®
All times are GMT. The time now is 04:39 PM.