NSR 4 wheel coach.

After a rescale of all the parts (all in one go, not separate as that moves their position in relation to one another) and reporting as a 3rd model in to Fusion, we now have a 7mm model of the coach.. infact there is now more than one.. and the joy of the system is when I update with the next new parts it will just plonk them in the right spots..

anyway.. the Christmas train now leaving Leek station…

Happy Christmas





(Ps only done night shots as it hides the missing details! )

 

Having a little spare time Friday morning (ie no kids and wife in bed off night shift) I decided to progress this model a little more..

I have to say, I’m looking forward to actually printing it sometime in the near future as I’m almost there.. (even Mark who designed the original parts is liking the progress and updates. )



First up I drew up and added the door handles and grab handles. On further inspection of the real coaches, they were not quite what I had first pictured and turned out much simpler than expected. And that finishes the sides off, it was now time to turn my attention to the part Mark sadly missed, mainly as he didn’t have the info at the time, the roof “Chimneys” for the oil lamp lighting.

Having followed the restoration of the real coach, I found some of Marks photos on Facebook that he had taken of the “chimneys” here is one being painted white.


a complete but unpainted unit prior to fitting to the coaches.

as they look on the coaches..

my next challenge now was to make something resembling the item, the cylinder was fairly easy but I decided to go .5mm wider than the original top hat Mark had made (I couldn’t delete these from the original roof without causing issues) simply so I could have the air holes in the sides.



I noted also the overlap on one side where the rivet detail was and to achieve this I took half the cylinder and copied it and made it just a tad wider. Now, the observant persons here may realise that would give another step on the back side and to get around that I merged the two halves and then chamfered over the join making it almost smooth again.

The lid is hinged at the back and has a simple spring clip at the front. The original has a cut away in the loop, but for strength etc when it comes to print, I decided to leave it solid.

and here we have the first draft


and with some “cheat” shading to highlight the vent holes.

That leaves it nearly finished.


I think that I may need to add the vac emergency kit on the end of the coach, although I need to clarify if this is a modern day requirement as it wasn’t present when they were in service. In fact, I’m not sure if the coaches were vac braked when built or just loose fitted like freight stock. Which also begs the question of what the tank was for on the chassis as Vac braking has no use for a res tank. Nor does the lighting..

One for another day to figure out.

 

No idea..

I think I may have to throw the Q back to Mark.
After all the repair work, I may leave it out.
Also have some brake rigging to try and fathom as to how the main rod from the vac cylinder connected to the brake hangers as the wheels.

this may help..

 

Just to go back a little in this post and have a look at where it all started..
The Knotty coach trust started a good few years ago and are based at the Foxfield Railway in Staffordshire, with 2 rescued wooden coach bodies. You can read more about it all at www.knottycoachtrust.org.uk where there are photos and details of each coach. They have 3 NSR coaches of their own and a first class four wheeler from the Churnet Valley which is still under restoration on long term loan. One of the 3 they have is a Brake 3rd coach, which when rescued out the undergrowth could never be identified and they opted to choose no23. It now has disabled access and LED lighting.

Our model is base on coach 127, built in 1876 and once disposed of by the railways, found a further life on a platform of the nearby Leek and Manifold valley light railway. After that line closed in 1934, it moved to a farm in nearby Ecton. It entered preservation in 1980 minus a door and its floor having totally rotted away.


A far cry from how it would have looked when in service.


Moving on now to the model my last task was to complete the roof fixings and add 3 links. I’ve also used Paul’s wheels in the later photos. (Cheers Paul!)
I had to draw up wooden cap, apparently they are inserted inside the “chimneys” when the oil lights were not in place in the evening. These were located on little poles (which I didn’t model) and the chain is long enough to reach the stored or in situe positions. I’ve modelled mine in the stored position which suggests the oil lamps are in as per as the real set are displayed. They have a simple handle to the top and the chain is linked to this. I won’t be trying to print the chain but may replace with a suitable metal item.



and that is about it…

I’ll leave you with some latest pictures taken today.

the STL file parts all showing in different colours.

and the fully painted coach. Sadly, being made from STL files in fusion, it won’t allow me to paint different sufaces like other items can be. So the window drop light should be a bare wood brown and the chassis rail should be the same as the buffer beams, and there are a few bits of trim that should have a nice painted edge to them, but alas another time…
It’s also denied me the option to fit labels to the doors and the NSR crest in the centre of the coach.


Finally an NSR train in an NSR station.
Happy new year!

 

Y

You should try it!
Btw, reply ref then air tank, early Vacuum brakes apparently needed a res tank, so that’s what it’s for. Later they were replaced by AVB automatic valve brake where the vacuum acted in equilibrium on either side of the piston in a single cylinder to keep the brakes off.

which is news to me..!

 

A quick bit more research revealed I had placed the vac pipes to much towards the outside when they should be more central (as a guard, I really should have spotted this error! But there you go) so this was amended when adding a missing bracket and the lamp brackets.

what is not apparent, but had to be done was that the vac pipe mountings had to be padded out as part of it overlapped one of the upright beadings. These have now been added to the body and chassis files as mounting points for the pipes once printed.
Some may notice a difference with buffers. Mark designed them as they would have been, not as they are now, which has cast LNWR buffer stocks.

what I may also do is now create the open outer sections which a 2 chimney roof fitted with only a central bulkhead.

 

And there we have it. Coach 61


This only had a central bulkhead and two open compartments. So only has 2 lights not 4.

 

Thank you Paul.
Need to save some pennies now for some more resin ipa. Then I can have a go at printing. Your wheels nicely finish it off. I think they are the 3’9” ones.. 9 spoke?
Where would I get a set like that? Slaters?
Andy

 

Ha. As Alex and my dad work at Peak rail, they probably drive past most weekends on one form of transport or another!

I will wait till printed first.

@paul_l I take it the wheel set you sent that is fitted to the model is as close as, only there was no centre shaft or pin points. I’m guessing that I will need some brass bearings when printed?

I also think I have some bits missing on the brake rigging?
I’m not taking the Micky when I say.. @Mossy what am I missing?

 

Nah, won’t be printing them, only for the virtual model. I’ll buy proper ones.

 

Yup, that’s what I need to draw / am missing…

Along with a bracket hanging off the chassis.
What’s not clear is if it’s a Y shape off each hanger to this section you show..??
If only I lived closer to the real thing I’d go and climb under it and look!