Redcat51 Loose Focus Help

William Optics Redcat 51 Focuser Beginner Help Needed
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Trey Wood avatar
Trey Wood avatar

Hey All,
Just got a redcat51 (first edition) from CN classifieds and everything is fine up until i tried shooting last night. The focus ring locks but it doesn’t hold in place very well. Any pressure or adding/removing my bahtinov mask slides the focus back to neutral.
Have you guys had this issue and if so, any idea on how to fix it. Everything i look up is people having theirs focus ring stuck, which is not my case.

I know a EAF will resolve this issue, however, I would rather that not be the factor in being able to use the scope or not.
Thanks!

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Tony Gondola avatar
Tony Gondola avatar

If this is the one you have this page from the manual might be helpful:

📷 redcat.jpgredcat.jpg

Trey Wood avatar
Trey Wood avatar

Tony Gondola · Feb 13, 2026, 11:12 PM

If this is the one you have this page from the manual might be helpful:

📷 redcat.jpgredcat.jpg

It wasnt but thanks for checking anyway.
Just posting this here for future if anyone has this issue.
I added a thick rubber band to cover the focuser wheel and the frame (indicated by the green band).
Causes the focuser to be really stiff but actually has helped a lot.

It stays very still and making small adjustments is actually easier.

Definitely will be getting an EAF soon though.

📷 image.pngimage.png

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