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GSO 1.25 Focuser Base + Gemini EAF Plate (130mm) — image 1
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GSO 1.25 Focuser Base + Gemini EAF Plate (130mm)

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GSO 1.25 Focuser Base + Gemini EAF Plate (130mm)

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GSO 1.25" EAF-compatible dual-speed Crayford focuser base + mounting plate for a Gemini EAF (adapted for a 130mm Newtonian tube)

I bought this focuser, and the shop offers a choice of two base plates for mounting it to the tube — the one I picked didn't fit my 130mm tube.

So I used the base plate from this model as a starting point and enlarged the hole to clear the focuser's travel. I also had to enlarge the hole on the tube itself.

You'll need:

  • 2x 4x5x6 heat-set inserts

  • 2x M4x5 screws

  • 4x M3 nuts (embed into the base by pausing the print at the right layer)

  • 4x M4x10 screws

  • 4x M4x80 screws

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