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Old 14-04-2018, 09:16 PM   #1
Mixed Signals
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Default Narrow wheel flanges on coaches and waggons

Now I'm testing the track and running trains I'm getting a few derails. The track is not perfect yet, however most the derails are on wagons and coaches that appear to have shallower wheels.

Hopper type wagons and the Flying Scotsman coaches derail all the time and have these wheels.

I have a fair bit of Triang stock and didn't expect that to run due to the larger wheel cones and flanges.

However I thought modern stock would be okay. Is the best solution to change the wheels.

Other stock without these shallow wheels rarely derail.
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Old 14-04-2018, 09:27 PM   #2
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Shallow flanges are better. If they are derailing check your track not the wheels.
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Old 14-04-2018, 09:41 PM   #3
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Shallow flanges are better. If they are derailing check your track not the wheels.
Hmm, yes could be some distortion of the rails. Derails are on curves so might make or buy a track spacer to see if the rail gaps vary.

If there's an issue, the bigger wheels may be coping with it I suppose.

Thanks!
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Old 14-04-2018, 09:47 PM   #4
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Are the curves joined squarely and is the track perfectly flat.
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Old 14-04-2018, 09:51 PM   #5
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Quote:
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Are the curves joined squarely and is the track perfectly flat.
The curves are square but there's some slight variation in height as the tracks loose at the moment. I think the baseboard joins are possibly responsible for it.
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Old 14-04-2018, 10:13 PM   #6
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For perfect running everything needs to be perfectly flat and fixed firmly down.
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Old 15-04-2018, 12:06 PM   #7
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Something I tended to do when setting up a 'loose laid' track layout for when the grand kids are coming is join the odd length with one fishplate (rail joiner) holding one of the rails but the other not. This leaves a 'bump' which is not easily visible by eye but will derail a train. So I now run my finger across each joint and if I can feel it pull the track pieces apart and I re-make the joint. The old eyes are not always a reliable guide, but I can still use my finger tips!
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Old 15-04-2018, 08:25 PM   #8
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Quote:
Originally Posted by Mixed Signals View Post
The curves are square but there's some slight variation in height as the tracks loose at the moment. I think the baseboard joins are possibly responsible for it.
These slight variations from the baseboard have given me much trouble.
The good news is that getting the legs right, by use of adjustable T nut
levelers corrected the issues. Failing that, one can use a thin shim of
any handy material. Also, getting down and sighting along the track
like a rifle is effective at identifying variations. Video application using
a smart phone can also bring out variations in high relief.
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Old 15-04-2018, 11:46 PM   #9
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Quote:
Originally Posted by LC&DR View Post
Something I tended to do when setting up a 'loose laid' track layout for when the grand kids are coming is join the odd length with one fishplate (rail joiner) holding one of the rails but the other not. This leaves a 'bump' which is not easily visible by eye but will derail a train. So I now run my finger across each joint and if I can feel it pull the track pieces apart and I re-make the joint. The old eyes are not always a reliable guide, but I can still use my finger tips!
Good tip. Will remember that.
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Old 15-04-2018, 11:56 PM   #10
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Quote:
Originally Posted by Chops View Post
These slight variations from the baseboard have given me much trouble.
The good news is that getting the legs right, by use of adjustable T nut
levelers corrected the issues. Failing that, one can use a thin shim of
any handy material. Also, getting down and sighting along the track
like a rifle is effective at identifying variations. Video application using
a smart phone can also bring out variations in high relief.
Thank you. Will take all these tips on board.

I'm a little disappointed if that does turn out to be the problem because I did take a lot of time in ensuring consistency in the bench heights.

I'm going to blame a sloping floor lol.
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