Can any one supply the radius of these turnouts?
Google search gave conflicting dimensions. Walthers could only say " I think it's 24" and 20". I did a full size CAD drawing and could not make the drawing match the actual turnout.
The Shinohara part # are 326 and 327 Code 70 LH and RH.
Thanks,
Bill
MOAVBILLY Can any one supply the radius of these turnouts? Google search gave conflicting dimensions. Walthers could only say " I think it's 24" and 20". I did a full size CAD drawing and could not make the drawing match the actal turnout. The Shinohara part # are 326 and 327 Code 70 LH and RH. Thanks, Bill
Google search gave conflicting dimensions. Walthers could only say " I think it's 24" and 20". I did a full size CAD drawing and could not make the drawing match the actal turnout.
Well, a company called Lambert Associates was (I believe) the original importer of this product line. I have a 10th edition catalog from them that dates from before dirt was invented. It has pictorial sketches of all the trackage components with dimensional data. According to the catalog, and assuming that the turnout configuration has not been changed, the larger radius is 24 inch and the smaller 20 inch. These radii are shown as being measured at a point 12-3/8 inches from the point end of the turnout (for the 20" radius), and 12-31/32 inches from the point end for the 24 inch radius.
Note that they do not show the radius at the point end, so I cannot assume that the larger, 24 inch, radius follows through the entire turnout. They do have a point called "intersection*" 2-25/32 inches from the point end which I'm assuming is the point where the two curves intersect, but I don't find the note associated with the * anyplace.
If you want, I can try to scan the catalog page and get it onto photobucket (if I can figure out how to do this).
Hope this is helpful.
Regards
Just scan it as a jpg file and upload it as you would any photo jpg.
Jay
C-415 Build: https://imageshack.com/a/tShC/1
Other builds: https://imageshack.com/my/albums
maxman,
Thanks....I too came across this same data. But some time Shinohara completely redid the design. I have now determined that it is a 26" outer and 20" inner. The tangent point now is at the moveable end of the points. This does make for a smoother flow through the turnout.
Now constructing a couple of full size templates to see where I can best utilize these.
MOAVBILLY Thanks....I too came across this same data. But some time Shinohara completely redid the design. I have now determined that it is a 26" outer and 20" inner. The tangent point now is at the moveable end of the points. This does make for a smoother flow through the turnout.
Okay, good to know that. Where did you get the revised information from (in case someone asks again)?
I took the time to layout all critical dimensions in CAD....then played around with arc sizes till they all fit the actual turnout. I can usually scan the item then digitize it, but flat bed scanner gave up the ghost over the weekend. Next commission check is stll a few days out.....
The Walthers/Shinohara Code 83 #6s layout at 24"/18" instead of the indicated 24"/20." The same 6" differential is true for the other curved turnouts: 36/30, 32/26, 28/22. I have checked them different ways and made CAD drawings that also confirm those radii when the actual turnout is overlaid on the drawing. Of course, the Code 70s can very well be different.
Dante
dante The Walthers/Shinohara Code 83 #6s layout at 24"/18" instead of the indicated 24"/20." The same 6" differential is true for the other curved turnouts: 36/30, 32/26, 28/22. I have checked them different ways and made CAD drawings that also confirm those radii when the actual turnout is overlaid on the drawing. Of course, the Code 70s can very well be different. Dante
Well then, there appears to be a discrepancy between two people measuring the same thing, unless the code 83 is different from the code 100.
No...There's no discrepency......Dante confirmed what I saw.....instead of 4" difference it is 6".....so it appears we both used the same formula.
Hi Guys
I thought that a thread awhile back concluded that a turn out had a degree of convergence and not part of a circle. What I took that to mean, the end of the diverging track would be a straight line.
Just trying to get a handle on this.
Lee
The Walthers/Shinohara curved turnouts have both routes curved. Please note that I have measured my Code 83 turnouts, not Code 70s or Code 100s; therefore, I cannot speak for those.
MOAVBILLY maxman, No...There's no discrepency......Dante confirmed what I saw.....instead of 4" difference it is 6".....so it appears we both used the same formula.
If I understood you correctly, you said that you had 26 outer and 20 inner. I believe that Dante determined the numbers to be 24 outer and 18 inner. Unless I'm missing something, this sounds like a different set of numbers.
I'll try to post the original catalog drawing later today.
You are correct....there is a discrepancy........the actual radius of my Shinohara Code 70 #6 curved LH turnout part number 326 (as measured on the turnout) is:
Inner 19.92"
Outer 26.06"
Okay, I scanned the page from the catalog. It would be interesting to know where your turnout's dimensions differ from the picture, primarily from the viewpoint of someone who already has one of these installed and needs to replace it. If Shinohara has actually changed the configuration, that would make direct replacement difficult.
(but I don't expect you to make a science project out of this...only if it is easy to do)
I 'M curious after reading this thread,that if it's a Walters Shinohara curved turnout.. Then the radius
of said turnout should be stamped on the bottom near the frog. Mine are. They must be the original
Shinohara old turnouts.
regards Frank
Sorry...can't help. Mine is definitely not 24". My outer radius is confirmed at 26" the inner one is suspect. I can fit a 20" or 22" depending on where I intersect the outer track.
UPDATE.....Walthers emailed me with the correct radius for the Code 70 #6 curved switches Shinohara part # 326 & 327.
Outer is 26"
Inner is 22"
Frank,
The Shinohara name is there but these had been installed at one time and some damage has been done to the under side of the ties. I looked at the other 3 and was able to make out 26 but not the other number. Then Walthers confirmed that this part number is a 26"-22".
MOAVBILLY The Shinohara name is there but these had been installed at one time and some damage has been done to the under side of the ties. I looked at the other 3 and was able to make out 26 but not the other number. Then Walthers confirmed that this part number is a 26"-22".
The confusion arises because the quoted radii on Shinohara (Walters) curved turnouts are nominal.
The actual radius on the inner curve has generally been measured to be somewhat less than the nominal inner radius. On the #6/ #6.5 turnouts, the accepted measured value for the inner radius is 19" or less.
Fred W
Gentlemen, please remember that my measurements are for the Walthers/Shinohara Code 83 units, not the Code 100 or Code 70 or Code xx of the old Shinoharas. Also, I stand by my measurement of the 18" radius for the divergent track of the Code 83 #6/6.5. I have checked it different ways and drawn it as well, and the drawn turnout agrees precisely with the actual. Don't expect 19".
Dante,
I agree.....after looking at the Fast Tracks template page the only conclusion I can come to is don't use curved turnouts thinking the radii advertised is what you will get. Buy one and then make it fit or build it in place. May have to build one due to not being able to re-curve the lead in. Can make 2 fit as I have room to adjust lead track to fit. Has been an interesting investigation....sure miss the scanner.....would have saved me a lot of time and typing......