R
RichardS
Guest
Pictures requested - here's one. It's a piece of wood, gripped in a workmate while I try to make it round and even. It's not easy. (actually it's two pieces - a cunning ploy to get at least 2 the same)

(Apologies for the odd image. Think there's a little problem with new camera to be sorted out here.
It's not the first unexpected result I've had.....)
This is one quarter of the end boards for my new model railway, RSR .I think I will have 4 tracks running around here, inside track radius about 36" outside about 42".
RSR is intended to be modular, so not only will the 4 curves make a circle, they'll also be the ends of a variable length oval. (I can erect the circle in my 'Railway Parlour' whereas an oval will not fit.) One side of the oval will be storage lines while the other will be a 'stage set.' The latter will be changeable as required, even mid way through an exhibition perhaps. All that will be needed is another set of 'set' boards.
Because, I want these boards to last, I have had some hardwood machined to create a moulding to make the ends of the curves that will butt against each other. This means that the joins between boards will not be ply to ply but accurately aligned hardwood edges.
The track at each join will cross it at 90 degrees. . While this will mean there is a short length of straight at the four compass points it does man that should I need to replace any track as it is straight this should be easier than trying to align a replacement curve across the join. (remember I said the radii were 'about' measurements. I am going to try allowing the track to find it's own place between two points which should produce a gently curving line which will include a gradual tightening of the radii. I might even try super elevating the lines.
As it is modular I shall make a 'jig' for the board alignment pegs, fixings and the positions of the track ends. I want this to be a completely interchangeable arrangement. It also means that others with modules built to the same 'standards' could fit in. We shall see.
Any observations, comments, welcome.
Kindest
RichardS

(Apologies for the odd image. Think there's a little problem with new camera to be sorted out here.
It's not the first unexpected result I've had.....)
This is one quarter of the end boards for my new model railway, RSR .I think I will have 4 tracks running around here, inside track radius about 36" outside about 42".
RSR is intended to be modular, so not only will the 4 curves make a circle, they'll also be the ends of a variable length oval. (I can erect the circle in my 'Railway Parlour' whereas an oval will not fit.) One side of the oval will be storage lines while the other will be a 'stage set.' The latter will be changeable as required, even mid way through an exhibition perhaps. All that will be needed is another set of 'set' boards.
Because, I want these boards to last, I have had some hardwood machined to create a moulding to make the ends of the curves that will butt against each other. This means that the joins between boards will not be ply to ply but accurately aligned hardwood edges.
The track at each join will cross it at 90 degrees. . While this will mean there is a short length of straight at the four compass points it does man that should I need to replace any track as it is straight this should be easier than trying to align a replacement curve across the join. (remember I said the radii were 'about' measurements. I am going to try allowing the track to find it's own place between two points which should produce a gently curving line which will include a gradual tightening of the radii. I might even try super elevating the lines.
As it is modular I shall make a 'jig' for the board alignment pegs, fixings and the positions of the track ends. I want this to be a completely interchangeable arrangement. It also means that others with modules built to the same 'standards' could fit in. We shall see.
Any observations, comments, welcome.
Kindest
RichardS