3 replies to this topic

[Olivier Biot]

Hi folks,

It looks like the 40mm Paragon and a 2" diagonal are a bit too much for the default friction provided by the Crayford focuser in my AT80ED. I'd like to tighten up the focuser in order to remove the occasional slipping. The 2-page description sheet of the AT80ED on Astro-Tech's website doesn't specify this manipulation.

When I put the OTA upside down, I see a number of recessed bolts, some anodized, some not (see attached photo).

What's the procedure to follow?

Attached Thumbnails

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[pollux]

I tweaked a SW Equniox before and the focuser is exactly the same as your scope's

You need to first try the one in the middle (the biggest hole). There's a screw (you need allen key) to control the tension

[Olivier Biot]

Hi Pollux,

Many thanks for your reply! I slightly tightened the nut in the central recessed hole in the elliptical flat base. Now there's no more slack!



Cheers,

Olivier

[spaceydee]

Yeah!!