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    jcj380's Avatar
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    Default Cure for slippery setscrew in diagonal?



    I have a diagonal that doesn't want to lock down eyepieces. I tighten the setscrew finger tight and the EPs can still slip and slide. Short of a different diagonal, any suggestions? Get a replacement screw from HoPo?
    Scopes: Orion ST120 refractor, vintage Celestron C-8
    Mounts: ES Twilight 1, Celestron EQ fork with pod and wedge

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    Default Re: Cure for slippery setscrew in diagonal?

    Check the end of the bolt, sometimes they are not flat/ cut straight. You may be able to clean it up with a fine flat file.
    I have no idea what HoPo is but if you have a good hardware outlet around you try finding either a nylon screw that will fit or sometimes you can find rubber tipped steel ones.
    Scopestuff sells many different sized bolts also that will look more like original ones.
    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
    Mounts: Celestron SLT w/ pier mod & EQ-3 tripod, Celestron hypertuned CG-5 w/ tracking motor & Argo Navis, Manfrotto 028B w/ Stellarvue M2C, Manfrotto 055PRO w/ 128RC, TAL-1 HD EQ, Vixen SXP w/ HAL-130 SXG & half pier Diagonals: 2" Astro-Physics MaxBright, 2" Zeiss/ Baader prism, 2" Baader Herschel Wedge (Photo Version), 2"
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    Amici prism, 2" Stellarvue Dielectric, 2" TeleVue Everbrite Eyepieces: A-Z

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    The weakest link in the optical chain is the large nut located directly behind the
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    / camera. - Gabrielle

    Ya gotta keep this Apo/
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    thing in some balance of perspective. Apos are awesome, but long focus Achros aren't that far behind them - Siriusandthepup (CN)

    Refractors kick arse precisely because they don't hide behind excuses. That is, they have no obstructions to hide behind. - Jon Isaacs (CN)

 

 

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