Subject:
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Dream rails
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Newsgroups:
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lugnet.trains
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Date:
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Thu, 7 Nov 2002 22:58:39 GMT
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Highlighted:
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(details)
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719 times
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Hi guys,
I just put on brickshelf some pics of wish-lego-produced-them rails.
These images are made from Autocad 14 and exported as bitmap
images,then converted to gif images with Photo Editor.
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=270944
here you can see 4 different curves.
They all cover a 22.5° angle.
as you can read,radii are respectively 40,56,88 and 104 studs
the 40 studs one is the curve we all know and that lego produces.
56 wide is the outer radius that we all would like to have.
Now,please note that lego town/trains is about 1/43 or "O" gauge scale.
Compared to O gauge,lego trains are compressed in width (6 instead of 8
or 9) and in lenght (a coach is 28 or 34 long,while an european coach
is about 26 meters/87 feet long,that means about 75 studs.)
This is positive,since train radius is 40 studs (rollercoaster
radius!!).
But,if you wish to model real size trains (I build 8x52 coaches,wich
look good,but are 2/3 of real lenght),then you need wider curves.
on the right of my pic,you can see 88 wide and 104 wide curved.
Nice curves,eh? :-))
Well,here in Europe,the smallest radii for HO gauge (1/2 big of O gauge
and 8 wide lego trains) are 36 and 41.5 centimeters (about 14 1/2 and
16 1/2 inches),that means 72 and 83 centimeters in O gauge.
This,translated into studs,is about 88 and 104.
Plus,88 and 104 are modular to 40 wide radius (40,56,72,88,104,spaced
of 16).
It would be really nice a 70 long coach running on an 88 or 104 wide
curve.
Plus,the 104 curve has a unique caracteristic,that you can see in this
pic:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=270943
It's a switch made of a 48 long straight and a 104 wide/22.5° curve.
You can see that the curve has a size of 40 studs lenghtwise and 8
crosswise (*),this meaning that with a countercurve you move of 80 (5
straights) lenghtwise and 16 (standard distance between parallel
tracks) crosswise
So ,if lego produced this switch,a standard 104/22.5° curve would be
used as countercurve and the switch would have a "normal" shape,not as
lego switches with their zig-zag curve
(and you could connect 2 switches together to link together 2 parallel
tracks)
What do you think of it?
Cheers,
Gianluca
(*) well,40 and 8 are slightly approximated, exact values are
104*sin 22.5=39.799 and
104*(1-cos 22.5)=7.91
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Message has 5 Replies:
 | | Re: Dream rails
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| (...) This would be so cool... just the 56 would already be nice, but having 88 and 104 , either as replacements or additional, would be awesome! Only problem I see is that we'll need a bigger hall at LEGOWorld 2003 for the train layout ;) (...) Now (...) (22 years ago, 7-Nov-02, to lugnet.trains)
| | | Re: Dream rails
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| (...) Might as well have done 72 as well, ne? (...) Very nice work! I especially liked the switch! (22 years ago, 8-Nov-02, to lugnet.trains)
| | | Re: Dream rails
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| (...) Wow those would be fantastic. Most of us have more curves than we know what to do with, but those would certainly get us salivating. Dream rails indeed, they are delightful. Nice work. -Jason +---...---+ Jason Spears MichLUG - (URL) Page - (...) (22 years ago, 8-Nov-02, to lugnet.trains)
| | | Re: Dream rails
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| Very nice work Gianluca: Couple of comments: I don't know how big of an issue it is to people, but one element that needs to be considered is tie spacing. According to my numbers, your 56 stud radius, 22.5 degree curve track has about 2.40 studs of (...) (22 years ago, 8-Nov-02, to lugnet.trains)
| | | Re: Dream rails
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| gianluca morelli <moebiusring@yahoo.it> wrote in message news:20021107225839....hoo.com... (...) [snip] (...) European cars are shorter than 26 meters, they go by the UIC-505 standard, which sets a maximum lenght of 24 meters (and standard height (...) (22 years ago, 9-Nov-02, to lugnet.trains)
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