Re: [CAD_CAM_EDM_DRO] Re: Enco/Sargon Scale Problem

Randy,
Just e-mail me pics directly. Most likely there's not 8 LEDs, but 4
LEDs and 4 Photo detectors/Cells that the LED's shine to through the
scale. If a lead is broken it can be soldered again. I'll know for sure
if I see some pics.

Darren






Randy Jacobs wrote:

> Thanks Darren,
>
> It appears that I have a broken LED. Moving the spring around didn't
> help, then I noticed that one of the 8 LEDs (I guess they are
> LEDs)didn't look like the rest. I wonder how I could replace that? I
> did try to post some pictures but I couldn't figure out how to do it.
> There was no "add pictures" or "albums" option.
>
> Randy
>
> --- In CAD_CAM_EDM_ DRO@yahoogroups. com
> <mailto:CAD_CAM_EDM_DRO%40yahoogroups.com>, Darren Clark <biggranger@ ...>
> wrote:
> >
> >
> > The reader head might be out of alignment. Most scales I work with
> > (Renishaw, Zeiss, Brown and Sharpe) the reader head must be aligned
> with
> > the scale to work correctly. I know absolutely nothing about your setup
> > (are scales are glass, metal tape, or glue backed tape? Or the reader
> > head, analog, digital signals, or optical?). You might want to try
> > playing with the alignment of the reader first. Note though, if the
> head
> > does not have rollers or slider pads that ride on the scale it should
> > not touch or press against the scale. Some digital pictures would help
> > in identifying what you have.
> >
> > Hope this helps a bit.
> > Darren Clark
> >
> >
> > Randy Jacobs wrote:
> >
> > > (This was originally posted to Rec.Crafts.Metalwor king and they
> > > suggested I post here)
> > >
> > > I've done it now. The cross slide on my lathe has been giving me
> > > problems. I hesitated to do anything because it meant that I had to
> > > remove the DRO scale. My cross slide is now working like new. But even
> > > though I handled the scale as if it were nitroglycerin, my worst fears
> > > have come true. When I reassembled everything, the read out now reads
> > > 0.000" no mater what the position on the cross slide is in. The other
> > > scale, that I didn't touch, works fine, as does the receiving unit.
> > >
> > > I was not aware that Sargon is no longer in business. Now what do I
> > > do? Anyone have an idea on how I can fix this thing? I really don't
> > > have a budget for a new DRO.
> > >
> > > The scale itself is a Sargon LG330-8. The system is Enco (Sargon
> > > model 625) Are scales of different brands interchangeable?
> > >
> > >
> > > I have now taken the scale apart. Knowing very little about DRO's,
> > > everything looked OK. There were no broken or loose parts. There was
> > > surprisingly very little swarf or grime inside. I did find a broken
> > > orange wire. I soldered it back together, put everything back together
> > > and no change, The read out still shows zeros.
> > >
> > > While apart I noticed that the spring on the head assembly held the
> > > read head to the base. The spring is quite stiff. It seems to me that
> > > the spring should push the head toward the glass.
> > >
> > > I would appreciate any help from this group.
> > >
> > > TIA
> > >
> > > Jay Cups
> > >
> > >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>

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