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Autofocus mount for ED80 refractor
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allows NEMA 17 stepper to drive the stock focusing knob.
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Model information
- Source
- Printables
- Category
- Physics & Astronomy
- License
- Creative Commons — Public Domain
Im still working out the best printing options
I used PETG, 240/70, infill 75, supports
you will also need pulleys and a timing belt / gears based on your needs
focus shaft to stepper shaft is about 51-53mm
I used 2GT 60T 7mm 3.5mm and 2GT 30T 7mm 4.8mm and a 200T 2GT belt