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mikeyh



Location : Dordogne France

PostSubject: Track gaps   Sat Jun 20, 2009 2:32 pm

Nearly finished laying track and find that there are several places where there are gaps between the ends of the rails (4-5mm), a little big for expansion joints methinks! As the track is carrying no power I thought perhaps scrunched up aluminium foil would 'bridge the gap'. anyone else got a better idea or does this only happen to me?

Mikey
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Carl Hibbs
Admin


Location : Haute Normandie - visitors welcome

PostSubject: Re: Track gaps   Sat Jun 20, 2009 3:22 pm

Is the track connected with a fishplate? i.e. is the fishplate spanning the gap?

If so.
I cut small pieces of rail to slide in the fishplate or if the fishplate won't move I file the bottom web flat each side of the small rail piece so it just slots in from the top.

Scrunched up foil doesn't sound to good to me.
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mikeyh



Location : Dordogne France

PostSubject: Re: Track gaps   Sat Jun 20, 2009 3:48 pm

Brilliant Carl. I have already done such a thing with the couple of gaps of 1cm. they just rest in the eclisse. ~whats the average gap thats ok for expansion joint?
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Carl Hibbs
Admin


Location : Haute Normandie - visitors welcome

PostSubject: Re: Track gaps   Sat Jun 20, 2009 7:07 pm

We talked about this a while back Mikey with a slight difference of opinion.
This is not an exact science as although the metal rail may or may not expand the sub base (wood especially) may well expand or contract and possibily in the opposite direction to the rail.

Hot Track

Even if you lay your track on the hottest day of the year I would still allow just a tiny gap every 2 metres. There will always be a hotter day.

As we agreed it's probably easier to fill a small gap rather than realign grossly buckled track.


Last edited by Carl Hibbs on Sun Jun 21, 2009 9:19 am; edited 1 time in total
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mikeyh



Location : Dordogne France

PostSubject: Re: Track gaps   Sat Jun 20, 2009 7:12 pm

sorry, I'd forgotten that one. i guess my reason for asking again is the rather larger gap between rail ends probably caused by my drawing a trackplan freehand and then making the track fit! the little bits of track should be fine though. cheers Karl

Nike
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Guest
Guest



PostSubject: Re: Track gaps   Sun Jun 21, 2009 2:37 am

Carl Hibbs wrote:


I cut small pieces of rail to slide in the fishplate or if the fishplate won't move I file the bottom web flat each side of the small rail piece so it just slots in from the top.

.
Brilliant! I was puzzling over how to hide my cock ups before the open day without pulling up rail.

Very Happy
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clive_t



Location : Portsmouth, England

PostSubject: Re: Track gaps   Mon Jun 22, 2009 11:42 am

Seconded - I have a similar gap or two that I have been reluctant to try and sort, as the track is half-buried and looking quite nice visually. I shall have to try that one...

_________________
Cheers,

Clive

Fat Controller of the S&CGR

http://www.scampington-chipside.co.uk
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http://www.scampington-chipside.co.uk
Carl Hibbs
Admin


Location : Haute Normandie - visitors welcome

PostSubject: Re: Track gaps   Sun Jul 12, 2009 9:03 pm

The importance of leaving track gaps

I got up this morning ' bonne heure' very warm but very damp.
Went to put the removable bridge in place and.....



The result of some metal heat expansion but also damp swelling of the wooden track subframe.

Normally there is a 1 - 2mm gap.
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PostSubject: Re: Track gaps   Today at 2:23 am

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