Coombe Bridge On the Longroyd Bridge & Bargate Railways

[Brian Mosby]

Making a new start
heres a plan for the layout what do you think
100_8192 by brian mosby, on Flickr

its 5 foot diameter & 14inch wide & in 8 parts & the baseboards are lazer cut

[theelliotts]

You might want to consider a larger central hole, then with a swivel chair it would be easier to sit inside at a show. With a computer drawing and laser cutting it should be easier to get the segments really accurate. Nice idea.

David E

[Brian Mosby]

You might want to consider a larger central hole, then with a swivel chair it would be easier to sit inside at a show. With a computer drawing and laser cutting it should be easier to get the segments really accurate. Nice idea.

David E

the boards are ordered & were been cut last week there will be a backscene on the inside as this will be a layout I can take to show if stan wants it I can take it to the November Rainhill show

[theelliotts]

From that I presume that your control will be 'external' rather internal, then the 2ft space inside makes sense. Its luxury to get the baseboards at least ready cut, assembled even better. How will you join and support the layout sections?

DE

[Brian Mosby]

at home I will control it from the out side but at hows I will be in the hole
not worked out the legs yet as the wood has not arrived & ones put togetter the legs are the 1st job

[JulienW]

at home I will control it from the out side but at hows I will be in the hole
not worked out the legs yet as the wood has not arrived & ones put togetter the legs are the 1st job

The 2' 4" hole in the middle should be OK to stand in, though you'll need to be careful with the positioning of the legs (especially on the 'inside' face) as the operator will need to get under the layout (on all fours?) then stand up.

Peter Cullen's "Mannin Middle" is a 'lifebelt' layout and from memory the dimensions seem to be about the same, though Mannin is square and on 4 baseboards (one per side) so there is a little more room in the middle and the legs (trestles I think) don't get in the way so much whilst passing through the hole.

Looks interesting - I'm looking forward to seeing the finished layout.

[Brian Mosby]

the layout will be at the Rainhill November show 2015 not sure how much scenic there will be but the track will be down

[theelliotts]

Taking yet another look why are the segments this size. The outside circumference is just under 16 ft. If you either only have 4 boards then the longest dimension will be 4 ft and half the number of baseboard joins, likewise legs. As to legs you might be able to come up with a four legged system in a square. What high can you comfortably get under. I recommend a swivel stool or you get exhibition twisted neck syndrome.

[Brian Mosby]

Today a large parcel arrived
100_8193 by brian mosby, on Flickr

I now have 112 parts for the base boards plus 24 clamps/ gigs & the disks to locate the boards & bolts  o & 3 shhets of A4 on how to put it all togetter
100_8194 by brian mosby, on Flickr

[Brian Mosby]

the woodwork cost

[Brian Mosby]

at the end of the day 4 boards are built apart from back scenes

[Brian Mosby]

5 now built & after lunch I am going to try the 4 in the car & then bolt them together in the loft

[Brian Mosby]

I miss read what tim said the size was
the boards are Not 5 foot Dia But are 5 foot Dia at the center line so the full size is 87 inch or 2215mm on the outside giving me a hole of 59 1/2 inch or 1510mm

[Graeme Dunbar]

That sounds a lot bigger - 5 foot (less a touch) inner diameter - plenty of room to maneuver inside that!

Am I right in thinking those extra bits are laser-cut clamps and pegs to hold the bits together while the glue is drying?

[Brian Mosby]

That sounds a lot bigger - 5 foot (less a touch) inner diameter - plenty of room to maneuver inside that!

Am I right in thinking those extra bits are laser-cut clamps and pegs to hold the bits together while the glue is drying?

Yes there came with the rest of the laser cut wood