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[William Optics] Re: Focusser slippage problem

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  • eric
    Have received a follow up email from Paul saying maybe April. I took some time examining the focuser on the five element (flatener included) GTF series.
    Message 1 of 27 , Feb 10, 2012
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      Have received a follow up email from Paul saying maybe April.
      I took some time examining the focuser on the five element (flatener included) GTF series. Essentially the GT81 replacement (another limited edition range!)

      --- In William-Optics@yahoogroups.com, MICHEAL CHASTNEY <chastney690@...> wrote:
      >
      > Hi Eric good news did he give any indication of when and how much?
      >
      > I would like to think they would offer exsisting owners a good price considering initial outlay and expectations,anything new on the stands?
      >
      > Regards
      >
      > Mike
      >
      >  
      >
      >
      > ________________________________
      > From: eric <ericemms@...>
      > To: William-Optics@yahoogroups.com
      > Sent: Friday, 10 February 2012, 15:00
      > Subject: [William Optics] Re: Focusser slippage problem
      >
      >
      >  
      >
      > Just spoke to Paul Zaika, sales manager of WO at AstroFest, London. He said WO may be offering the new focuser of the GTF series as a replacement for the one on the GT81. I said many owners of the GT81 would be interested in this upgrade option.
      >
      > Eric
      >
      > --- In William-Optics@yahoogroups.com, "eric" <ericemms@> wrote:
      > >
      > > Thanks Dave
      > > I'm not that mechanical proficient! Would not have the confidence to do as you suggest.
      > > Perhaps If I can follow some visual guide or commission someone else to do it I may be persuaded.
      > > Kind regards
      > > Eric
      > >
      > >
      > >
      > > --- In William-Optics@yahoogroups.com, "Dave Y" <daveyates80@> wrote:
      > > >
      > > > Williams focusers use a flat on the tube like all other crayfords. A common issue is that the flat is NOT FLAT and the shaft that rides on it is only in contact on its edges. Flattening or HONING the flat gives the crayford shaft a pile more grip. I have done this with several focusers with great results. Check the flatness.
      > > > A honing stone and patience is all it takes
      > > > Cheers,
      > > >
      > > > Dave Yates
      > > > Telescope Performance Improvements
      > > > Tripod spreaders, battery trays and levelling mounts
      > > > CGE fine AZ adjuster and pier toppers
      > > > www.tpiastro.com
      > > >
      > > > From: eric
      > > > Sent: Saturday, January 28, 2012 9:20 AM
      > > > To: William-Optics@yahoogroups.com
      > > > Subject: [William Optics] Re: Focusser slippage problem
      > > >
      > > >
      > > > Jaap,
      > > > Very many thanks. So I'm looking to a $600 FT upgrade.
      > > > My concerns are:
      > > > 1. I do not use rings to mount but a short dovetail screwed to the tripod hole of the red band.
      > > > 2. my WO RDF is currently mounted on the DDG.
      > > > Both "anchor points" are lost in the upgrade.
      > > > How can I address both concerns with the FT?
      > > > Kind regards
      > > > Eric
      > > >
      > > > --- In mailto:William-Optics%40yahoogroups.com, "Jaap van 't Leven" <jvtleven@> wrote:
      > > > >
      > > > > Hi Eric,
      > > > >
      > > > > The code for the adapter is A20-271
      > > > > (Adapter 2.0" for ASTRO-TECH 6", 8" and GSO 6", 8" RITCHIE-CHRETIEN
      > > > > telescopes)
      > > > >
      > > > >
      > > > > Regards,
      > > > > Jaap.
      > > > >
      > > > > On Fri, Jan 27, 2012 at 12:06 PM, eric <ericemms@> wrote:
      > > > >
      > > > > > **
      > > > > >
      > > > > >
      > > > > >
      > > > > > Jaap,
      > > > > > That's terribly useful. Thank you so much. Does the adaptor have a
      > > > > > name/code for ease of ordering from Starlight Instruments?
      > > > > > Kind regards,
      > > > > > Eric
      > > > > >
      > > > > > --- In mailto:William-Optics%40yahoogroups.com, "Jaap van 't Leven" <jvtleven@>
      > > > > > wrote:
      > > > > > >
      > > > > > > Hi Eric,
      > > > > > >
      > > > > > > I just finished installing the lightweight FT focuser:
      > > > > > > http://www.spacerock.nl/?p=438
      > > > > > > Weather forecasts are not looking good, so first light might take a
      > > > > > while.
      > > > > > >
      > > > > > > Regards,
      > > > > > > Jaap.
      > > > > > >
      > > > > > > On Thu, Jan 26, 2012 at 6:25 PM, eric <ericemms@> wrote:
      > > > > > >
      > > > > > > > **
      > > > > >
      > > > > > > >
      > > > > > > >
      > > > > > > > I have problems with the DDG focuser of my GT 81. It keeps sticking
      > > > > > when I
      > > > > > > > turn the knobs - may move a few mm then stops. Have tried the hex screw
      > > > > > > > behing the lock nut but to no avail. Now considering a Feather Touch
      > > > > > > > replacement. I guess a 2" one. Anyone using an FT on a GT 81? If so,
      > > > > > any
      > > > > > > > comments.
      > > > > > > > Kind regards,
      > > > > > > > Eric
      > > > > > > >
      > > > > > > >
      > > > > > > > --- In mailto:William-Optics%40yahoogroups.com, Dan Mitchell <dstm24@> wrote:
      > > > > > > > >
      > > > > > > > > Feather Touch
      > > > > > > > >
      > > > > > > > > Sent from my iPad
      > > > > > > > >
      > > > > > > > > Dan
      > > > > > > > >
      > > > > > > >
      > > > > > > >
      > > > > > > >
      > > > > > >
      > > > > >
      > > > > >
      > > > > >
      > > > >
      > > >
      > >
      >
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