M56x1 Male to M54x1 Male Adapter
Print Profile(1)
Description
M56x1 Male to M54x1 Male Adapter for Early Sky-Watcher 72ED (Pre-2019)
Adapter designed for early versions of the Sky-Watcher Evostar 72ED, especially when used with the Sky-Watcher 72ED 0.85x Reducer/Flattener
On certain models before 2019, the original 0.85x reducer's rotating ring can cause several issues:
- Insufficient focus travel (lack of inward focus travel)
- Difficulty reaching focus with certain optical trains
- Risk of tilt introduced by the rotating ring
- Assembly lacking rigidity in astrophotography
This adapter replaces this problematic ring with a shorter and more rigid direct threaded connection
Function
- Converts M56x1 male → M54x1 male
- Removes the original rotating ring
- Reduces mechanical backfocus
- Recovers focus travel
- Improves optical train alignment
Print Recommendations
- 0.2 mm nozzle
- 0.08–0.12 mm layer height
- 100% infill
- 4–6 perimeters
- Vertical printing
- no supports
Recommended Materials
- PETG / PETG-CF
- ASA / ASA-CF for better thermal stability
Why this model exists
This model was designed as a solution for early generations of the 72ED where the original design of the 0.85x reducer could prevent sufficient focus travel
If you have an older 72ED and a focus issue with the reducer, this model may be useful
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including, but not limited to, publishing derivative works outside the Makerworld platform or hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money or collect fees. Subject to the above restrictions, derivative works may be published only within the Makerworld platform, and all such derivative works must be licensed under the same SDFL‑C license, without modification or additional terms. You may download the digital versions of this object, 3D print it, and display images, videos, or usage demonstrations of 3D printed versions of the object on personal social media platforms or Makerworld official channels, provided that no digital versions of the object are shared or distributed.
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