Special chairs

[Phil O]

Hi Martin,

I have just watched the Zoom Meeting video talking about timber spacing and I had a thought, would it be possible to add special chair footprints to the common crossing templates, this would make the timber shoving easier as we would be able to see where we needed the timber to be to support the chair.

Many Thanks

 

[Martin Wynne]

Hi Martin,

I have just watched the Zoom Meeting video talking about timber spacing and I had a thought, would it be possible to add special chair footprints to the common crossing templates, this would make the timber shoving easier as we would be able to see where we needed the timber to be to support the chair.

Many Thanks

@Phil O

Hi Phil,

Yes, the experimental chairing does that. Here are switch heel block chairs, L1 bridge chairs, ordinary S1 chairs:

But not yet for the V-crossings because I haven't got that far!

I think I need a rubber stamp with the word "experimental" to save me typing it so often!

But it's not as simple as it seems -- if you shove the timbers along, Templot re-calculates a non-prototypical chair to fit. This is needed for 00/EM/0-MF etc., because of the wider switch openings, wider flangeways and modified knuckle positions.

There will be an option to "lock" the chairs in the prototypical positions so that you can check that you have timber under them, but I haven't done that yet, and I don't yet know how that will work for 00/EM/0-MF etc.

Also of course there are no prototypical positions for 1:6.37 crossing chairs, even though Templot will happily create them when needed.

Still a long way to go, but we will get there in the end.

cheers,

Martin.