AO-L adaptor question

Discussion in 'Legacy Models - Community Support' started by Jing Liang, Mar 25, 2019.

  1. Jing Liang

    Jing Liang Standard User

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    Hi,

    I am trying to figure out if the AO-L front hole is threaded or not. If so, what is the thread size and hole dimension.

    I am trying to make a custom adapter. Thanks!

    Billy
     
  2. Doug

    Doug Staff Member

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  3. Colin Haig

    Colin Haig Staff Member

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    The information you need is in the manuals, and they are available here in the archive area:
    http://diffractionlimited.com/support/sbig-archives/
    Look at the STL and AO-L manuals there, as information is provided as well as some photos.

    The AO-L attaches to the nose-piece mounting plate on the front of the camera (or larger 8-position Filter Wheel). It takes the nose-piece from the camera, and has bolt holes that hold it on.
    The nose-piece has a 48mm x 0.75 thread on the inside, for a filter.
    The nose-piece inside thread should not be used for holding the weight of the camera.
     
  4. Jing Liang

    Jing Liang Standard User

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    Hi Doug,

    Just to confirm, I don't need to attach another accessory plate to the AO-L front plate correct? Is the front hole already threaded? Sorry my AO-L unit is at the remote location. Just want to confirm before I make the parts.

    Billy
     
  5. Jing Liang

    Jing Liang Standard User

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    Here is the adapter I am trying make. Could you confirm I can thread the adapter in the front hole without the accessory plate mentioned on page 12 of the SBIG manual?
     

    Attached Files:

  6. Colin Haig

    Colin Haig Staff Member

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    Is it 2.156 thread size?
     
  7. Jing Liang

    Jing Liang Standard User

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    Correct. 2.156 thread size
     
  8. Doug

    Doug Staff Member

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    The front of the camera is not threaded. The adapter plate is threaded.
     

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