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Chagford - Re-inventing the wheel


Lisa

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Hi All

 

Can anyone tell me why when three 2mm modelers meet, they have four preferred track building methods?

 

 

I seems to be quite fashionable in 2mm circles to lay track, have a problem, rip it up and then relay it. Well now I’ve joined in with a 'Y' point that caused derailments. I have made some plain track to temporally replace it, so I can run trains!

 

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My re-inventing is in the design of my cassette fiddleyard. The mechanical alignment and electrical connections are achieved using two DC power connectors, see photograph below. The problem is that when I reverse the cassette I reverse the power connections and thus I get a short when I drive a DCC equipped loco onto the cassette! Otherwise the system works well. Why could I just use the standard system?

 

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Lisa

6 Comments


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  • RMweb Gold

The reason you are getting derailments is because of the common crossing on the point. The knuckles do not line up, they must be exactly opposite each other. Also, it looks as though the wingrail gaps are differnt each side of the common crossing (frog) - they should be 20thou - I use a couple of slips of alluminium to set these. The area around the common crossing is the most crucial part of the point and it is essential that it is spot on or it will always cause problems. Don't be afraid to scrap points if they don't work they will only be a constant source of frustration - I know because I ditched a fair few in my early track building days.

That said, keep at it, 2FS is worth it in the end

 

cheers Jerry

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  • RMweb Gold

Welcome to the 'rip up club' ;)

 

Sound advice from Jerry above...long term it pays dividends to redo it...however painful it seems at the time...

 

Stick with it Lisa...

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Hi all

 

I have to have wider flangways than shown in the standards in the 2mm Handbook because of the sharp curves on my tram layout. This is a lesson I learn from examining and talking to the owner of 'The Broadway layout' Alan Lawrence.

 

Lisa

 

 

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  • RMweb Gold

Regarding your cassettes if you feed them via a reverse loop module it will change the polarity to which everway they are placed and solve the shorts - not cheap but effective.

I notice the point still there has no checkrails. Although these bits of rail don't seem to do much they do have a function especially when track is sharply curved.

Don

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Hi All

 

It's a simple as I have never got round to fitting them yet.

 

For the cassettes I been considering a solution which involves a micro switch and a relay which could be powered via a rectifier bridge, from the DCC Bus. BUT I might abandon this method of cassette construction because of it's high cost! Yet to be decided, watch this space!

 

Lisa

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Hi All

 

If you get the point construction right, the point should work without checkrails. I got this tip from a book on track construction by Ian Rice. They will be fitted eventually!

 

Lisa

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