Exactoscale Fast Track - joining up the two gauges

Discuss the prototype and how to model it.
Julian Roberts
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Exactoscale Fast Track - joining up the two gauges

Postby Julian Roberts » Sun Jan 08, 2017 4:17 pm

Hi Folks

I am experimenting with Exactoscale Fast Track. It comes in packs of sleepers - enough for 2 metres; rail isn't included. I have got a pack of normal and a pack of widened (by 0.2mm) for curves. I am wondering if there is an accepted or recommended way of joining them up, when the straight goes into a curve, and back again, does anyone know?

Thanks
Julian

allanferguson
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Re: Exactoscale Fast Track - joining up the two gauges

Postby allanferguson » Sun Jan 08, 2017 5:27 pm

I am sure there will be a purist way...... but I am impure, and I just joined them end to end, relying on the flexibility of the plastic chairs and the stiffness of the rail to smooth everything out. I also made sure that the rail was continuous through the changeover. Nothing's fallen off yet!

Allan F

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Re6/6
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Re: Exactoscale Fast Track - joining up the two gauges

Postby Re6/6 » Sun Jan 08, 2017 8:15 pm

Agreed. Allan's way will work fine. I use it the same way.
John

Julian Roberts
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Re: Exactoscale Fast Track - joining up the two gauges

Postby Julian Roberts » Sun Jan 08, 2017 9:35 pm

Thanks both, sounds like a common sense consensus.

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steamraiser
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Re: Exactoscale Fast Track - joining up the two gauges

Postby steamraiser » Mon Jan 09, 2017 5:45 pm

You could leave a gap between the two ends of the fast track sleepers and infill with individual sleepers and chairs.
Gordon A

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LesGros
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Re: Exactoscale Fast Track - joining up the two gauges

Postby LesGros » Mon Jan 09, 2017 11:26 pm

steamraiser wrote:You could leave a gap between the two ends of the fast track sleepers and infill with individual sleepers and chairs.
Gordon A


That is the method suggested to me several years ago at the Exactoscale stand before C&L took over; I think that four or five sleepers with individual chairs was about right.
LesG

The man who never made a mistake
never made anything useful

Julian Roberts
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Re: Exactoscale Fast Track - joining up the two gauges

Postby Julian Roberts » Wed Jan 11, 2017 8:01 pm

Thanks Gordon and Les for latest replies. I have tried assembling a 60' panel (240mm) - the sleepers come in groups of 8 and are joined for that length by the web on both gauges. The groups of 8 can be pushed closer together to (closely enough) replicate the arrangement under the rail joints.

2017-01-10 13.52.42.jpg


I have put one group of gauge widened sleepers on this panel, but I cannot tell by eye which one it is. Happily they are stamped with different codes underneath. I imagine trains would have no problem with this invisible gauge change as has been said, so I'm inclined to save time and bother, and follow the advice of Allan and Re6/6, making the change not coincide with rail joins.

But I wonder how it was done on the real thing? - I imagine as Gordon and Les suggest.

QuentinD
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Re: Exactoscale Fast Track - joining up the two gauges

Postby QuentinD » Thu Jan 12, 2017 7:24 am

I believe on the prototype gauge widening simply wasn't done above 10 chains--and when it was done it always involved a continuous check rail and one of 3 (?) different types of chair, one for each gradation of gauge-widening. Now, with full sized rail being as bendsome as it is, I imagine the real question is whether or not the engineers allowed that much stress to be placed on the fishplate bolts. I'd think gauge changes would be avoided at joints wherever possible, personally.

Quentin


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