Help please Lgb R 3 and R2 curves ....

markrussell1966

markrussell1966

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I am designing a new layout for my garden and am plannning on a twin track main line. I have Lgb R3 curves and wrongly assumed that Lgb R2 would run inside it and bought some! If I put short straights in between the Lgb R2 curves can I make them run very roughly parallel around the inside of the Lgb R3 curves?
Thanks,
Mark
 
lgb-tracksystem-160_large.jpg
 
It will depend on what track centers you want to use. You may want to just use R3 and add a straight section to the 'outer' track on a curve at both ends. Also note the track centers when doing a crossover using the R3 turnouts. You will have trouble doing a passing track as the R3 turnouts are an oddball length so short sections of track will be needed. This does not happen with R1 and R5 turnouts used with the matching curved track.

Nathan
 
You could use (beg, steal or borrow if necessary) a railbender to re-radius the R2 curves? Or use flexi as shown in Greg's diagram.

It would look much better than using straights IMO. I would suggest a minimum of 185 mm track centres. As R3 is 2400mm then 2215mm, or maybe 2200mm....
 
I was admonished several times, including once on this forum I believe, to reference this track planning diagram.

This one shows the R1 tracks (11000) paralleling the R2 tracks (15000)... so they do seem to parallel in curves... so is the clarifying statement "yes they do parallel but you don't have enough clearance between tracks?"... I'm a bit confused by the rather oblique answers.

Greg

Greg Elmassian said:
lgb-tracksystem-160_large.jpg
Click to expand...
 
The R1 radius is 600 mm. The R2 is 765 mm. If you are running a long wheel base car like a passenger car on the R2 and a locomotive that the front sticks way out on the curve there is a chance that they will hit. For the person running 1 to 22.5 meter gauge the 165 mm difference is only 3.75 real meters difference, 12 Feet. For a person running 1 to 20.3 that is 3.4 meters, 10.9 Feet.

Nathan
 
Greg Elmassian said:
I was admonished several times, including once on this forum I believe, to reference this track planning diagram.

This one shows the R1 tracks (11000) paralleling the R2 tracks (15000)... so they do seem to parallel in curves... so is the clarifying statement "yes they do parallel but you don't have enough clearance between tracks?"... I'm a bit confused by the rather oblique answers.

Greg
Click to expand...
We are looking at R3 paralleling R2s here Greg - hence the confusion.
 
O.Olesen said:
You also could use PIKO R3 curves (1844 mm across). It will fit nicely inside LGB R3 curves.
Click to expand...
Well thought out that man!

LGB R3 are 2400 mm, so 556 mm between track centres....
 
Gizzy said:
Well thought out that man!

LGB R3 are 2400 mm, so 556 mm between track centres....
Click to expand...


Hmmm, yes, I'd never really looked that closely at Piko R3 - but it would indeed seem to fit the bill in this case! For anyone wanting Piko trackwork (at least in the UK), I'd recommend Top Slots and Trains, who generally do pretty good prices plus and excellent service in my experience: http://www.topslotsntrains.com/tops...US-3-G-R3&id=4750&manufacturer='PIKO G Scale'

For a diagram of the geometry of Piko track, take a look here (scroll about halfway down the page for the geometry plan): http://shourtline.swl4.com/PIKO_35300_13-piece-Solid-Brass-Station-Track-Set.html
Do note that this diagram shows a few track elements that Piko apparently planned but have never actually made (so far, anyway, I keep hoping to see them one day) such as a 3-way point and a "Y" point....

Jon.
 
Thanks for the comments.. Nice to feel a warm welcome (and I apology if I may not always use the correct english terms)
Gizzy Gizzy : As we are talking diameters the distance between track centers is about 273 mm.
Zerogee Zerogee : Your PIKO diagram is a little outdated. PIKO also has introduced some very nice curved turnouts (R3/R5). The complete range can be found in the "PIKO_Ggleis" brochure, that can be downloaded from www.piko.de
 
O.Olesen said:
Thanks for the comments.. Nice to feel a warm welcome (and I apology if I may not always use the correct english terms)
Gizzy Gizzy : As we are talking diameters the distance between track centers is about 273 mm.
Zerogee Zerogee : Your PIKO diagram is a little outdated. PIKO also has introduced some very nice curved turnouts (R3/R5). The complete range can be found in the "PIKO_Ggleis" brochure, that can be downloaded from www.piko.de
Click to expand...

Thanks for the Piko link - I probably should have looked at their own site first - but being in a hurry, I just googled Piko Track Geometry and the Shourt Line item was the first one to pop up in "images"....!

Oh, and welcome to GSC! :)

Jon.
 
O.Olesen said:
Thanks for the comments.. Nice to feel a warm welcome (and I apology if I may not always use the correct english terms)
Gizzy Gizzy : As we are talking diameters the distance between track centers is about 273 mm.
Click to expand...
Your English is fine. Better than my Danish anyway!

And welcome to the forum too....
 
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