Bob:

PS - the tapered railheads is a prototype practice, at least on Santa Fe. BNSF 
may have outlawed them for some supercilious reason, like their effective 
simplicity.

Bob Nicholson  ___________________________________________


--- In [email protected], Bob Werre <bob@...> wrote:
>
> Bob and All,
> 
> I am one who has gone the electronic route to drive my turntable and it 
> hasn't been what I had hoped--being close enough doesn't work with rails 
> lineing up.  However it's difficult in my case to be close enough to 
> have a manual interlock to assure an exact fit.  I have the New York 
> drive system with an extra cost device that sort of squeezes the motor 
> shaft to prevent slop--sometimes it works in both directions and other 
> times, only one.  I'm sure it due to my installation, but I'm not 
> certain what direction to go to make the correction.
> 
> I did notice that you had tapered your rail quiet a bit,  that might 
> help in my situation.  Also it appears that you are dropping a locking 
> pin into position, is that correct?  There is a small 1:1 turntable 
> located at the Stock Yards in Fort Worth (tourist train) that uses an 
> actual locking device that is fool proof in the real world.  My good 
> friend Rusty Paulus had the Bowser turntable that he ran by hand.  He 
> locked it by simply dropping a small piece of plastic across the gap and 
> it worked well.
> 
> Your idea of digging out your dioptors for closeup work is a great way 
> of making things work.  For many years I've owned a Nikon Micro-Nikor, 
> which will get you down to 1:1, but it's a normal focal length lens.  
> They also made longer focal length versions...at 105 and a 200mm that 
> were beautiful for limited applications.  More lately they have produced 
> several lens in the macro range with shift and tilt features.  I 
> purchased a used 85mm version and also broke the bank in the process.  
> The latest version of the 24mm version is someplace between 2-3K--maybe 
> some day.
> 
> With that in mind I also dug out my diopter lenses that I bought in high 
> school.  They work quite well and for model photography generally work 
> better than extension tubes where you want more depth of field.  So they 
> are a great $20 solution!
> 
> Bob Werre
> PhotoTraxx
> 
> 
> On 1/19/12 8:16 AM, shabbona_rr wrote:
> >
> > I came up with an excrutiatingly simple way to hold the turntable 
> > bridge at Terminal District steady while equipment moves on and off of 
> > it. Those abnormally attracted to electronic complexity and mysteries 
> > may want to turn their heads and not view it in polite surroundings
> >
> > http://groups.yahoo.com/group/S-Scale/photos/album/1775582643/pic/587261192/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
> >  
> > <http://groups.yahoo.com/group/S-Scale/photos/album/1775582643/pic/587261192/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc>
> >
> > As important as the the turntable latch, though, is how I made the 
> > photograph. I had to send my Fuji S3 DSLR in for repair, so have been 
> > using my Fuji S9000 P&S as a backup.
> >
>




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