G Scale Rail Cross Section.

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electricity_bill

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I have been looking without success for a simple, cross sectional, dimensioned, drawing of different G Scale brass rail. I understand that Aristo is Code 332 and LGB is ? What does that mean in mm?

Can anybody help?

Bill
 
Rhinochugger

Rhinochugger

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I have been looking without success for a simple, cross sectional, dimensioned, drawing of G Scale brass rail. I understand that Aristo is Code 332 and LGB is ?

Can anybody help?

Bill
You may find that there is not a categorical cross section for a rail code, as that relates directly to the height.

In fact, Aristo and LGB code 332 are not identical - the bottom flange on Aristo is wider than LGB. You will find this out if you try to use rail clamps to join Aristo track to LGB :nerd::nerd::nerd::nerd:
 
PhilP

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Not sure about a diagram? But Aristocraft track is also code 332..

Depending how old it is, it could be *really* 'similar' to LGB track.. - Even down to the pattern on the sleepers! :lipssealed:
More recent track (I think) has a very slight difference to the profile of the foot of the rail?
 
Gavin Sowry

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I have been looking without success for a simple, cross sectional, dimensioned, drawing of different G Scale brass rail. I understand that Aristo is Code 332 and LGB is ? What does that mean in mm?

Can anybody help?

Bill

Rail code is simply the height of the rail in thousandths of an inch.
 
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electricity_bill

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Just want some numbers on this . 1604606199720.png
 
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electricity_bill

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LGB and Aristo (USA)
 
Rhinochugger

Rhinochugger

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I could measure some in the morning, but I don't think the Mk1 eyeball will necessarily be accurate enough for your needs (bearing in mind that code 332, as Gav says, is 332 thousandths of an inch).

It would be better if they could be measured with a micrometer - and I don't have one.
 
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electricity_bill

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LGB and Aristo (USA)
 

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maxi-model

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Why are these measurements critical to you ? Generally you can mix and match most 45 mm track systems as they have similar cross sections but not all do, some will need an adapter to join together. Most rail used in these systems fall into the description of "code 332". The 332 refers to the height of the rail from its foot to the rail head measured in thousands of an inch. This is standard practice across all the different rail types used across all scales. Most code 332 rail produced is flat bottom section and most fall into proportions to be the same or a near match in to that used by LGB the past predominant supplier. If you want to sell your product you need to be able to be compatible with LGB, or near as dammit. Compared to other 45 mm rail used in "finescale" track systems, like those for use with Gauge 1, it is quite chunky. The primary suppliers of code 332, and generally accepted as compatible to LGB without modification are - LGB,Trainline,Aristocraft,USA Trains,Piko, Bachmann. There are others. Some specialist 45 mm gauge track system maker use LGB's, and others, rail to make up specialized track pieces or whole systems. There are one or two Code 332 suppliers where an adapter will be required to join to other mainstream code 332 systems, Tenmille comes to mind here. It is possible to join other different code sizes, like Peco's G45 code 250, where the railhead heights are matched at the same height when joining with the correct adapter. I hope that helps. It;s that or getting the digital calipers out in any sample you can get hold of :) Max
 
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SevenOfDiamonds

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electricity_bill

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What is the source of this table? The "Tenmille G" figures (at least) don't make semse to me!

All the best

David
The G Scale Society Technical Manual.
 
E

electricity_bill

Registered
11 Feb 2010
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Why are these measurements critical to you ? Generally you can mix and match most 45 mm track systems as they have similar cross sections but not all do, some will need an adapter to join together. Most rail used in these systems fall into the description of "code 332". The 332 refers to the height of the rail from its foot to the rail head measured in thousands of an inch. This is standard practice across all the different rail types used across all scales. Most code 332 rail produced is flat bottom section and most fall into proportions to be the same or a near match in to that used by LGB the past predominant supplier. If you want to sell your product you need to be able to be compatible with LGB, or near as dammit. Compared to other 45 mm rail used in "finescale" track systems, like those for use with Gauge 1, it is quite chunky. The primary suppliers of code 332, and generally accepted as compatible to LGB without modification are - LGB,Trainline,Aristocraft,USA Trains,Piko, Bachmann. There are others. Some specialist 45 mm gauge track system maker use LGB's, and others, rail to make up specialized track pieces or whole systems. There are one or two Code 332 suppliers where an adapter will be required to join to other mainstream code 332 systems, Tenmille comes to mind here. It is possible to join other different code sizes, like Peco's G45 code 250, where the railhead heights are matched at the same height when joining with the correct adapter. I hope that helps. It;s that or getting the digital calipers out in any sample you can get hold of :) Max
I use a mixture of LGB and Aristo track. I convert the LGB to the Aristo track fishplates and this works well overall. However, it is not possible to drill and tap the shortest rail on LGB points so I have used Hillman rail clamps for that joint. They work OK but it is obvious that the bottom flanges on these two systems are different in width and this can sometimes cause problems. Hillman have gone out of business and I can looking for a substitute and it is very confusing in talking to different suppliers to find out if their product will do the job. Hence trying to get some info.
 
Rhinochugger

Rhinochugger

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I use a mixture of LGB and Aristo track. I convert the LGB to the Aristo track fishplates and this works well overall. However, it is not possible to drill and tap the shortest rail on LGB points so I have used Hillman rail clamps for that joint. They work OK but it is obvious that the bottom flanges on these two systems are different in width and this can sometimes cause problems. Hillman have gone out of business and I can looking for a substitute and it is very confusing in talking to different suppliers to find out if their product will do the job. Hence trying to get some info.
OK - right.

I have found that the best clamp to use for dissimilar manufacturer's track is an Accucraft clamp which has a split jaw on one side.

1604610008037.png
 
Chris Vernell

Chris Vernell

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OK - right.

I have found that the best clamp to use for dissimilar manufacturer's track is an Accucraft clamp which has a split jaw on one side.

View attachment 275866
Would those be clones of the clamps made by the sadly defunct Split-Jaw company? Those were/are my standard clamps because they do allow joining slightly different rail sections.
I have LGB, Aristocraft, USA and Piko track on my railway, and they work together nicely.
 
Rhinochugger

Rhinochugger

Retired Oik
27 Oct 2009
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Would those be clones of the clamps made by the sadly defunct Split-Jaw company? Those were/are my standard clamps because they do allow joining slightly different rail sections.
I have LGB, Aristocraft, USA and Piko track on my railway, and they work together nicely.
I don't know - when I wanted some clamps, these were the only ones that Trackshack had in stock, so I bought a few - I only needed a few at the time :emo:
 
Chris Vernell

Chris Vernell

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I don't know - when I wanted some clamps, these were the only ones that Trackshack had in stock, so I bought a few - I only needed a few at the time :emo:
Like others, I use rail clamps for all my points/turnouts. Makes it easy to remove the points.
They are also useful between the modules of my Thomas show layout: In theory, the rail ends should simply line up; in real life, about half need clamps to maintain the line and level. :blush:
 
Gavin Sowry

Gavin Sowry

Garden Railroader and Raconteur
27 Oct 2009
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I could measure some in the morning, but I don't think the Mk1 eyeball will necessarily be accurate enough for your needs (bearing in mind that code 332, as Gav says, is 332 thousandths of an inch).

It would be better if they could be measured with a micrometer - and I don't have one.

My calculator says that .332" is 8.4328mm. Don't know where they got that 7mm from in the table...….
 
dunnyrail

dunnyrail

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25 Oct 2009
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I use a mixture of LGB and Aristo track. I convert the LGB to the Aristo track fishplates and this works well overall. However, it is not possible to drill and tap the shortest rail on LGB points so I have used Hillman rail clamps for that joint. They work OK but it is obvious that the bottom flanges on these two systems are different in width and this can sometimes cause problems. Hillman have gone out of business and I can looking for a substitute and it is very confusing in talking to different suppliers to find out if their product will do the job. Hence trying to get some info.
I did have an issue with some rail not clamping in correct with Hillman Clamps. To make things work I cut a small shim of brass sheet and plonked it in the clamp. This was to the outside of the rail thus pushing the insides together to maintain a smooth ride for the wheels.

Another trick I used on a friends layout was to silver solder two differing rail sizes together, he prefers to use Gauge 1 standard rail but LGB in fiddle years. Thus the two joined bits form the interface between the two differing profiles though he does have to block up the Gauge 1 to meet LGB thicker sleepers but that is not as big an issue as some would make out.