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Astronomy covers, caps, and plugs — image 1
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Astronomy covers, caps, and plugs

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Covers, caps, and plugs for common sizes used in astronomy and astrophotography.

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Covers and caps for some commonly used sizes in astronomy and astrophotography. I find that sometimes I am missing a cap and I was unaware of a good collection, so I decided to design my own and bundle them.

There may be some slight variations between tooling between manufacturers; I tested my prints against some parts from Pegasus Astro. I modeled these to be easy to add and remove, so they are very knobby (I hate it when stuff gets stuck) and developed thread profiles for Fusion 360:

The collection contains caps and covers in the following sizes:

  • Female
    • M42x0.75
    • M48x0.75
    • M54x0.75
    • Small SCT (2"-24)
    • Large SCT (3.28"-16)
  • Male
    • M42x0.75
    • M48x0.75
    • M54x0.75
    • Small SCT (2"-24)
    • Large SCT (3.28"-16)

Note - Photos show a M48M cap that is really M42M. This was a typo that was fixed. :) 

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