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Offline Ranjit  
#1 Posted : 01 July 2003 02:41:02(UTC)
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Ranjit


Joined: 18/06/2003(UTC)
Posts: 3,023
Location: Chennai, Tamil Nadu, INDIA
Hi All,

Sorry for this very daft question.

Is there a specific rule about the placement and distance between tracks? Is this distance the same for M, K and C tracks? Is it necessary to place the track at a specific distance apart to be able to fit the station kits and other stuff? What other considerations are necessary? Please let me know.

thank you.

best regards,
Ranjit
Modelling in HO Scale - Era III & IV. K+M Track, Analogue + Digital
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Offline perz  
#2 Posted : 01 July 2003 03:22:20(UTC)
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perz

Sweden   
Joined: 12/01/2002(UTC)
Posts: 2,578
Location: Sweden
There is a "standard distance" which results from connecting two parallel tracks with a pair of switches. This distance is 77.4 mm for M tracks, 77.5 mm for C tracks and 64.6 mm for K tracks. There is also a wider M track distance of 96.4 mm if you use the switches with 360 mm radius. (All distances are track center to track center.) Many platforms are made to fit one or the other of these distances, but there are platforms with other distances too.

On real railroads, the distance between parallel tracks are usually 4 m on the lines and around 4.5 m on the railyards. The parallel distance on the model railroad is wider than to scale, because otherwise two trains would not be able to meet in a curve (since the model railroad curve radius is much smaller than to scale). Platforms on real railroads are usually rather wide, and the model platforms are narrower than to scale.

The following should be considered:
1. Track distance in station areas need to match the platforms.
2. If two tracks are connected with a pair of switches, you can only get the track distances that come from the geometry of the track system you use.
3. In curved sections, you should have enough track distance to avoid collision.
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Offline Ranjit  
#3 Posted : 01 July 2003 03:52:43(UTC)
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Ranjit


Joined: 18/06/2003(UTC)
Posts: 3,023
Location: Chennai, Tamil Nadu, INDIA
Hi Per,

Thank you for your feedback.

So therefore, in all cases it seems that the first thing to do is to plan the layout, lay the tracks and only then decide on the fixtures. Am I correct?

Is there a book from Marklin or from elsewhere which explains track geometries in more detail. Is this also something that you usually learn from experience?

BTW, I must say that I liked your layout, tips and tricks very much. I hope that one day I could model my Marklin layour just like yours.

I look forward to hearing from you.

best regards,
Ranjit
Modelling in HO Scale - Era III & IV. K+M Track, Analogue + Digital
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#Get Vaccinated
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"If you have a garden and a library, you have everything you need" - Marcus Tullius Cicero
"Nothing is as powerful as an idea whose time has come" - Victor Marie Hugo
"If you can dream it, you can do it" - Walt Disney
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Offline Webmaster  
#4 Posted : 01 July 2003 03:58:21(UTC)
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Webmaster


Joined: 25/07/2001(UTC)
Posts: 11,165
The Märklin catalog has descriptions of the track geometries, but I don't really understand them when it comes to applying them easily in real life..
I guess I am not alone... biggrin
Free track planning software can be a blessing sometimes..
Juhan - "Webmaster", at your service...
He who asks a question is a fool for five minutes. He who does not ask a question remains a fool forever. [Old Chinese Proverb]
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Offline perz  
#5 Posted : 02 July 2003 00:59:45(UTC)
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perz

Sweden   
Joined: 12/01/2002(UTC)
Posts: 2,578
Location: Sweden
I think you can make a rough planning of the layout first, but you should take things like stations, platforms and bridges into account before you go to the detailed track plan. If you e.g. find a platform you like, it might be better to adjust the track plan to fit it than to take a less good-looking platform.

Track geometries can be difficult to understand, and getting it together is very much trial and error. I calculated my layout by hand with a pocket calculator, and it took a long time. A track planning software makes it much faster, but you still have to try different solutions until you get it together.

I use M-tracks, but I have designed some track plans with C track and K track too, for possible future use. I think K track is easiest to design track plans with, and the flexible track makes it even simpler. C track is the most difficult and M track is somewhere in between.
The track geometry as such is simpler with C track, but there are more combination possibilities with the M tracks and K tracks.

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