CR Grampian corridor stock , part 5, running trial
A bit of progress. Four bodies are now on frames and I have been playing on the layout to iron out any running issues.
I wanted to try and get it to look as if the coaches are properly coupled. Even with springs I found that screw couplings didn’t really keep the buffers together on curves, and I wanted the buffers to compress to take up and rattle.
I came up with this. Essentially half an aj on a diamond spring it is stiffer then the buffer springs but can be extended to couple the coaches. Making it bogie pivot to bogie pivot also gets round the tendency for a screw coupling to be very tight at an angle when the coaches enter a curve or on reverse curves. It is also reversible, coaches can be turned round.
A lot of time has been spent messing about with corridor connections. Tried all sorts including magnets but none got round the problem of getting the faces of the corridor connections to actually line up particularly on a reverse curve or the side forces on the ends of the coach caused running issues.
Well, I was watching a bit of real train video and it dawned on me. What the eye notices is the faces of corridor connections, not the part where they meet the coach. Conveniently the end of the coach has a slot in it, actually the window of the corridor connection internal door.
A bit more lateral thinking. Three bits of foam, medium stiffness but fairly flexible. This is just a proof of concept, needs some rework to tidy it all up.
So thats how they sit between coaches, and how they sit on a curve.
A bit of a heath robinson solution perhaps, but does it work when a train is running on the layout ?
A bit of rough video, comments welcome. The big pug stretching its legs.
I think that gives me the confidence to move on to the next stage, paintwork and interior details.
Er , how many antimacassars ?
Edited by Dave John
pics replaced
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