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Traingeekboy
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Ok, so what would a 3 foot gauge colorado line use for ties?
Actual dimensions?
how is that for yet another important question?
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Traingeekboy
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Yeah, I won't be doing any kind of exactness.
And I have looked at other people's layouts.
I see everyone is sort of doing kinda sorta looks right.
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pipopak
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An X2F coupler!.
Haven't seen one in AGES!!!.
Jose.
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Traingeekboy
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pipopak wrote: An X2F coupler!.
Haven't seen one in AGES!!!.
Jose.
Expect to see more. 
err...
just cutting up the Tyco Caboose underbody in preparation for a Gilpin-ish caboose build.
Yup, more X2F couplers. :D
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Si.
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Woodie :- 
" These appear to be the prototype for the NMRA X-2F couplers so popular in the last century.
Well, at least I am trying... "
Jose :- 
" Reminds me of the infamous X2F... "
Si. :- 
" All these great minds thinking in sync. "
& from Down-Under LITERALLY ! ... A damn fugly Aussie mining X2F !! 
Oztrainz :- 
" Because of the jaw geometry and locking tab,
these are less likely to have spontaneous uncoupling events than a traditional knuckle coupler.
... only permitted coupling for underground use "
Well there you have it guys ...
... the sum-total of Freerails 1:1 prototype X2F knowledge ! 
I think Oztrainz hit the nail on the head, or the Lincoln on the pinion, or whatever ...
... with his jaw-dropping (groan) geometry snaps.
The NMRAs ingenious, or infamous as Jose would have it, cheap plastic crappler design ...
... is very safe, cos once you get 'em ( or rather IF you get 'em ) coupled up OK ...
... you ain't EVER ! gonna get 'em uncoupled again in a month of Sundays !! 
Now that's VERY safe ! 
You can't say THAT about a rusting, Health & Safety law bustin', metal-fatigue ridden Lincoln-pin !!
As for the aesthetics ...
... Thank goodness they are only used UNDERGROUND ...
... where nobody can see them ! 
I'll retire to my underground bunker for a  now ...
... before the FLAK bombardment starts.
Si.
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' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
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pipopak
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... you ain't EVER ! gonna get 'em uncoupled again in a month of Sundays !
That's why they were called COUPLERS.
Jose (who still (shugh!) remembers).
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Traingeekboy
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Seems more legit than using some Kadee crapplers on equipment that should have link and pin couplers.
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pipopak
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link and pin couplers....
for the seriously masochistic-inclined....
Jose.
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Traingeekboy
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Back to wheels...
I did a reduce the wheel size to get dimension calc.
by dividing a standard 33" wheel by both scales.
33 / 87
= 0.37931034482759
20 / 55
= 0.36363636363636
So in HO scale the 33 inch wheel ends up being around 1/100th of an inch different in size.
I'm sure there will be those who look at my models and will have a complete OCD crisis.
Not to worry, Emotional Trauma Teams are on hand.
And Happy New Year everyone!
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Did I ever mention that I like trains?
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