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22296[William Optics] Re: FLT110 focus wobble

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  • Timm B
    Apr 1 7:30 AM
    • 0 Attachment
      Hi Ray,

      The rings are safer, and more solid in my opinion. Wise decision!

      Timm

      --- In William-Optics@yahoogroups.com, "Ray Hurst" <ka4gbr@...> wrote:
      >
      > Timm,
      >
      > Thanks for the reply.
      >
      > I did all these adjustments when I first got the scope.
      >
      > That's when I decided to use the extender.
      >
      > It seems to work fine for the imaging that I do.
      >
      >
      >
      > The only other thing I did was to remove the foot and add a set of rings.
      >
      > Just feel safer with the rings.
      >
      >
      >
      > Ray
      >
      >
      >
      >
      >
      > From: William-Optics@yahoogroups.com [mailto:William-Optics@yahoogroups.com]
      > On Behalf Of Timm B
      > Sent: Sunday, March 31, 2013 7:15 PM
      > To: William-Optics@yahoogroups.com
      > Subject: [William Optics] Re: FLT110 focus wobble
      >
      >
      >
      >
      >
      > Ray,
      >
      > The 2 silver screws probably shouldn't need to be tightened.
      >
      > Mine has wobble NOT because of the focuser tube, but the entire focuser on
      > the rotation base. Can you try something for me?
      >
      > Loosen the silver thumbscrew that locks the focuser rotation. Does it now
      > wobble more? If so, see how loose the three nylon black screws are and try
      > to carefully tighten them to see if the wobble goes away. Once mine were
      > tight, it didn't wobble, but then it doesn't rotation smoothly, so here is
      > what I did.
      >
      > Remove the silver thumbscrew that locks the focuser rotation. Remove all
      > three of the nylon black screws. Remove the focuser. Apply a thin layer of
      > high quality white lithium grease to the retaining ring. Reassemble, and
      > tighten the nylon screws enough so there is no wobble, and it still is able
      > to rotate.
      >
      > This is what worked for me, let me know if it works for you.
      >
      > I can provide a detailed adjustment procedure as well if you like, but it
      > really is just the tension screw on the bottom, the bottom tension lock, and
      > the 2 silver extra tension screws that can be adjusted. I can explain more
      > about how the focuser works if you like.
      >
      > And Happy Easter!
      >
      > Timm
      >
      > --- In William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com> , "Ray Hurst" <ka4gbr@> wrote:
      > >
      > > I guess all focusers wobble to some degree.
      > >
      > > I thinks it's better to use an extender so the focuser doesn't extend more
      > > than half way out.
      > >
      > > This will give it more stability.
      > >
      > > Maybe I am spoiled with feathertouch focusers.
      > >
      > > Is there a detailed adjustment procedure for the DDG focuser?
      > >
      > > It seems that the 2 silver screws on the side must have a sweet spot where
      > >
      > > It isn't too loose or too tight.
      > >
      > >
      > >
      > > Ray
      > >
      > >
      > >
      > >
      > >
      > >
      > >
      > > From: William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com>
      > [mailto:William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com> ]
      > > On Behalf Of Timm B
      > > Sent: Sunday, March 31, 2013 5:36 PM
      > > To: William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com>
      > > Subject: [William Optics] Re: FLT110 focus wobble
      > >
      > >
      > >
      > >
      > >
      > > Is it the new R&P focuser?
      > >
      > > Not sure how it can wobble, unless you mean the rotation part.
      > >
      > > Timm
      > >
      > > --- In William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com>
      > > <mailto:William-Optics%40yahoogroups.com> , "Ray Hurst" <ka4gbr@> wrote:
      > > >
      > > > I have some play in my DDG focuser on my GTF-81 also.
      > > >
      > > > I found that a 2 inch extender helps.
      > > >
      > > > This causes the focuser to work without being extended too much.
      > > >
      > > > Ray
      > > >
      > > >
      > > >
      > > >
      > > >
      > > > From: William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com>
      > > <mailto:William-Optics%40yahoogroups.com>
      > > [mailto:William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com>
      > > <mailto:William-Optics%40yahoogroups.com> ]
      > > > On Behalf Of Timm B
      > > > Sent: Thursday, March 28, 2013 9:38 PM
      > > > To: William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com>
      > > <mailto:William-Optics%40yahoogroups.com>
      > > > Subject: [William Optics] Re: FLT110 focus wobble
      > > >
      > > >
      > > >
      > > >
      > > >
      > > > Hi
      > > >
      > > > Those two large silver screws on the side of the new R&P DDG focuser are
      > > for
      > > > putting extra resistance on the internal teflon pressure pieces to
      > > increase
      > > > friction of the tube if needed.
      > > >
      > > > I'm pretty familiar with the new R&P focuser so if anyone has questions
      > > just
      > > > let me know.
      > > >
      > > > Timm
      > > >
      > > > --- In William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com>
      > > <mailto:William-Optics%40yahoogroups.com>
      > > > <mailto:William-Optics%40yahoogroups.com> , "ajtdebruin" <ajtdebruin@>
      > > > wrote:
      > > > >
      > > > >
      > > > >
      > > > >
      > > > >
      > > > > Btw, what purpose serve those two large silver screws to the right of
      > > the
      > > > ddg display?
      > > > >
      > > > > --- In William-Optics@yahoogroups.com
      > <mailto:William-Optics%40yahoogroups.com>
      > > <mailto:William-Optics%40yahoogroups.com>
      > > > <mailto:William-Optics%40yahoogroups.com> , "ajtdebruin" wrote:
      > > > > >
      > > > > > Hi everybody, I am new here. I just bought a FLT 110 and there seems
      > > to
      > > > be a lot of play in the focuser espescialy if fully extended! By that I
      > > mean
      > > > that I can "lift" the tube. Perhaps the tube hangs in the r&p focuser by
      > > > design? Thanks
      > > > > >
      > > > >
      > > >
      > >
      >
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