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Celestron Motor Drive Dual Axis Model (CG-4 Mount)

Item # HN-CELE228

Dimensions & Specifications

Brand
Celestron
Telescope Accessories Series
Celestron Telescope Motor Drives

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  • Dual Axis Motor Drive for Celestron CG-4 Mount
  • Allows for automatic tracking in RA
  • Four speeds are available, 1x, 2x, 4x and 8x
  • Operates from 4 D-Cell batteries (not included)
  • Easy to install
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Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Celestron Motor Drive Dual Axis Model (CG-4 Mount)
 
4.2

(based on 11 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

89%

of respondents would recommend this to a friend.

Pros

  • Strong construction (6)
  • Easy to use (4)

Cons

    Best Uses

    • Astronomy (8)
      • Reviewer Profile:
      • Avid adventurer (4), Casual/ recreational (3)
      • Was this a gift?:
      • No (3)

    Most Liked Positive Review

     

    Good Addition to the CG-4 Mount

    These motors were extremely easy to add to the mount and are very quiet. They move my 13.4 pound astrophotography setup and the two counterweights with no problem.
    I like that the hand...Read complete review

    These motors were extremely easy to add to the mount and are very quiet. They move my 13.4 pound astrophotography setup and the two counterweights with no problem.
    I like that the hand controller light flashes when the batteries are getting low. I use rechargeable batteries and this makes sure I don't lose power in the middle of a session.
    The hand controller buttons work well and the cords are plenty long.
    Another review noted that there is a lag between pressing a button and the mount moving. That is caused by backlash in the mount. Close observation of the dec motor gears shows that they start turning immediately when the button is pushed.
    Yes, there are only 3 speeds and you can't slew the mount around the sky as previously noted but I have no problem getting the pointing close by using the clutches and hand adjusting the mount, then fine adjusting with the hand controller. Making small adjustments at 8x during astrophotography sessions works great.
    I've attached a picture (series of stacked pictures) of the Orion Nebula taken with the described setup and the motors were instrumental in getting there.

    VS

    Most Liked Negative Review

     

    junk

    This website will not let me express how poor this really is. Complete waste of money. Save the aggravation and spend money elsewhere.

    This website will not let me express how poor this really is. Complete waste of money. Save the aggravation and spend money elsewhere.

    Reviewed by 11 customers

    Sort by

    Displaying reviews 1-5

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    1.0

    junk

    By no

    from indiana

    Comments about Celestron Motor Drive Dual Axis Model (CG-4 Mount):

    This website will not let me express how poor this really is. Complete waste of money. Save the aggravation and spend money elsewhere.

     
    4.0

    Celestron Motor Drive Dual Axis Drive

    By Gary

    from Pacific Junction, IA

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Easy To Use
    • Strong Construction

    Cons

    • No Manual Release Both Ax

    Best Uses

    • Astronomy

    Comments about Celestron Motor Drive Dual Axis Model (CG-4 Mount):

    Very good quality, and works well. It would be better if there was a release for both axis if a manual adjustment is needed. As it is now only one axis can be controlled manually if needed. Also the slew rate is a little slow.

    • Was this a gift?:
    • No
     
    5.0

    TRACKS LIKE A DREAM !

    By Stephen L

    from PALMDALE,CA

    Verified Buyer

    Comments about Celestron Motor Drive Dual Axis Model (CG-4 Mount):

    My Cg4 mount is well balanced and carefully polar aligned.
    I installed the dec. and r.a motors easily.
    I used a wire loom to dress the cables and waited for dark skies. The scope at Vega tracked for one hour then rechecked at two hours found the star still centered in a 12mm eyepiece. Seamless product.

    (2 of 2 customers found this review helpful)

     
    4.0

    Recommended with reservations

    By KF

    from Illinois

    Verified Reviewer

    Pros

    • Easy To Use
    • Strong Construction

    Cons

      Best Uses

      • Astronomy
      • Astrophotography

      Comments about Celestron Motor Drive Dual Axis Model (CG-4 Mount):

      I bought these drives for use with my Meade 6 inch F5 Schmidt Newtonian which I have mounted on the Celestron CG-4 mount. The instructions are clear and the installation is a breeze. The motor drives handle the 12 pound optical tube with no problems. Initially I was dissatisfied with the performance of the RA drive. With the motor running, high magnification views were blurred by vibration. With the drive off the image was steady and clear. Apparently this is fairly common with stepper motor drives that turn in tiny pulsing increments. The cause of this vibration is due to gear slop in the mount...not the drive motor. The cure is to adjust the gear mesh in the mount as tightly as possible without undue binding. The drive instructions explain how to adjust the CG-4 mount worm gears. but mention nothing about vibration being a possible result of improper adjustment. The troubleshooting section only talks about the adjustment being too tight and stalling the motors, or too loose and causing backlash. However,it is worm gear backlash in the mount adjustment that causes the RA motor to 'click" as the play between the gears is taken up and released by the pulsing on-off rotation of the drive motor. This clicking of the gears then induces vibration. The trick is to eliminate all play in the worm gears. This may require some trial and error to get right, but when dialed in properly the vibration is gone.
      The only complaint I have about this drive is that the RA motor has no de-clutching attachment as the Declination motor does. That means that the manual RA slow motion control cannot be used. Other than that small complaint the drive once dialed in works very well and tracks accurately.

      • Was this a gift?:
      • No
       
      5.0

      Good Addition to the CG-4 Mount

      By Terry

      from Colorado

      About Me Casual/ Recreational

      Verified Reviewer

      Pros

      • Easy To Use
      • Strong Construction

      Cons

        Best Uses

        • Astronomy
        • Astrophotography

        Comments about Celestron Motor Drive Dual Axis Model (CG-4 Mount):

        These motors were extremely easy to add to the mount and are very quiet. They move my 13.4 pound astrophotography setup and the two counterweights with no problem.
        I like that the hand controller light flashes when the batteries are getting low. I use rechargeable batteries and this makes sure I don't lose power in the middle of a session.
        The hand controller buttons work well and the cords are plenty long.
        Another review noted that there is a lag between pressing a button and the mount moving. That is caused by backlash in the mount. Close observation of the dec motor gears shows that they start turning immediately when the button is pushed.
        Yes, there are only 3 speeds and you can't slew the mount around the sky as previously noted but I have no problem getting the pointing close by using the clutches and hand adjusting the mount, then fine adjusting with the hand controller. Making small adjustments at 8x during astrophotography sessions works great.
        I've attached a picture (series of stacked pictures) of the Orion Nebula taken with the described setup and the motors were instrumental in getting there.

        • Was this a gift?:
        • No

        Displaying reviews 1-5

        Back to top

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