The GNR Howlden flat roof coach project

Donald9Douglas10Oliver11mp · 2024-09-05T03:40:41+00:00

About 9 months ago I decided to start work on a rake of GNR coaches, mainly to run with the upcoming Rapido Stirling single. My Initial plan featured a pair...

Donald9Douglas10Oliver11mp

TYPE: F. Howlden flat roof 6 wheel coach
Dia. 156 (regular body length)
Coach code: CZ (Composite)
Scale length: 36′ 3″
Center wheel mechanism: sliding axel
Cmpt No. : 5
1st: 2 (seats: 12 )
2nd: N/A (seats: N/A)
3rd: 3 (seats: 30)

Donald9Douglas10Oliver11mp

TYPE: F. Howlden flat roof 6 wheel coach
Dia. 164C
Coach code: CLkZ (Semi-corridor luggage lavatory composite)
Scale length: 40′ 10 ½″
Center wheel mechanism: sled
Cmpt No. : 4
1st: 2 (seats: 9)
2nd: N/A (seats: N/A)
3rd: 2 (seats: 14)

*Note model shown is slightly too long and interior needs some rectification (will update photos at later date)

Donald9Douglas10Oliver11mp

TYPE: F. Howlden flat roof 6 wheel coach
Dia. 41??? (East Cost Joint Stock only!)
Coach code: FLKNGZ (Dual-lavatory first corridor non-gangway)
Scale length: 40′ 10 ½″
Center wheel mechanism: sled
Cmpt No. : 4
1st: 4 (seats: 16)
2nd: N/A (seats: N/A)
3rd: N/A (seats: N/A)

Super

Wow,,,that is some super detailing DDO

Donald9Douglas10Oliver11mp

So, having finished the designing for the 6 wheelr’s, I decided it would be best to ~~take a brake~~ To star working again on the 8 wheel stock, so here is the WIP CAD

TYPE: F. Howlden flat roof 8 wheel coach
Dia. 238
Coach code: T (Third)
Scale length: 49′ 2 ¾′?
Chassis type: bogied
Cmpt No. : 7
1st: N/A (seats: N/A)
2nd: N/A (seats: N/A)
3rd: 7 (seats: 70)

Donald9Douglas10Oliver11mp

So a bit of an update…. I just wanted to say that the project currently at a significantly more advanced place than ever before, but I still have made some small CAD changes that the current models won’t necessarily have, mainly to the chassis as it involve re-printing them which takes about 15 hours plus another 2 to remove the supports and a part of the raft (so it’s not gonna happen). I’m currently mainly working on the brake third with the third and composite following soon after each step is done to the brake.
The stage where were at is what I call the pure pain and suffering stage or more correctly sanding the bodies… Now had these coaches been nice simple coaches with either a flat body or a very shallow and simplistic paneling it wouldn’t have been as bad ,but they’re not and I have spent like 3-4 hours just sanding one wall of the brake and what I truly think is making me lose motivation is the fact that you can hardly tell as the bottoms and the edges of ALL the panels.. so like 30-40% of the surface with print lines just can not be sanded.
Oh and another neat thing. Ever since changing over to the .2mm nozzle the first layer of all prints doesn’t really attach properly so when I inevitably sand it it comes of in massive strings.
And finally ALL the holes for the grabrails need to be re-drilled as they just do not come out properly. So yeah… I’m just having just sooo much fun!
Here are some images of the parts for the brake (Note: the only thing sanded is the previously mentioned wall and I’ve tidied up the paneling on the end walls)

Densha

Ah yes, only people who don’t 3-D print believe that all you do is press a button and wait for a tugboat to emerge.

Actually your outside faces are not too bad.

This week I started making more Terrier engines as birthday and Christmas presents. A few pieces at a time so I don’t get bored or frustrated.

chrisjo

Densha This week I started making more Terrier engines as birthday and Christmas presents

How does one get onto your Christmas present list?
🙂

Donald9Douglas10Oliver11mp

I’ve updated the information on the 6 wheel coach diagrams and in the process discovered that the Dia. 164C is slightly too long but it’s not the end of the world, and as I’ve already printed the walls for it I’ll be leaving it like that ’till I’ve completed my model, although slightly less fortunate the dia. 128 is 12mm too long and had I not just spent hours sanding the body I probably would have started over, but I’m going to carry on and just ignore it.

I’m actually not sure what is more concerning, that I had the correct length and still messed the scaling up, or that I don’t think it looks that wrong, sure compared to the drawing it does but on the whole it still looks good

chrisjo

Nobody else would ever have known!

Donald9Douglas10Oliver11mp

chrisjo

Yep, that’s just one of the signs I have spent WAYYY too much time on this project!

Donald9Douglas10Oliver11mp

I spent some time over the past couple of days making a new and correctly sized chassis for the Dia. 128, and here it is!

As for the Dia. 164C I decided to reprint the walls all together…. Why, well it’s because I discovered that the kinematic couplings were under-compensated, witch means that they wouldn’t extend enough to allow the model to make it around curves. The reason why I’m not just redoing them just for this one print is because when I get to resizing the chassis I’ll end up having to redo them again…

I do have a plan for what I’ll eventually do with the over-sized D.128 however I’ll need to do some more modeling until I can reveal it.

I’m sure some people might be wondering about the roof furniture on the new van third, but like any professional I’m going to make use of the tactic of procrastinating doing it until I have 4-5 coaches to do and hen I’ll do them in like 2-3 hours

Donald9Douglas10Oliver11mp

Ladies and gentlemen! Progress Has Been Made!

Super

Wow, that looks great

chrisjo

What kind of curve radius can it go round? Is there a lot of lateral play on the axles?

Donald9Douglas10Oliver11mp

chrisjo

Technically they can manage R1 curves however the longer chassis are more comfortable around R2.

As for compensation they’ve either got a sliding center wheelset, which is free to slide side to side, or a sled, made up of the wheelset, axel boxes and a part of the footboards. The sled is also free to slide side to side the type of mechanism is dependent on the length of the vehicle, as the sliding axel only works on vehicles of a max. scale length of about 33′. I mentioned the type of mechanism in the description of each coach

Donald9Douglas10Oliver11mp

WIP 6 wheel diagrams

Updated:

Dia.128
Dia.164C
ECJS Dia. 41???

New:
*Dia.245 (alt. length 4- Ex Dia156)
*Dia.243 (currently only one end with short buffers)
*Dia.239
*Dia.240
*Dia.149

Donald9Douglas10Oliver11mp

I am unfortunately going to stop making more GNR diagrams for the time being as unless I want to make some saloons I’ll have to design some new chassis and I just don’t feel like doing that right now, but in the future I definitely want to make some more. Currently I’m finishing the updates and the coaches I showed off yesterday…
In the mean time I have updated the Dia. 128 with proper photos and also a version with the short buffers at one end!

Donald9Douglas10Oliver11mp

So here’s what the current selection of GNR coaches looks like. 9 different diagrams (The ECJS first has not been updated yet) and variants for short buffers, different roof furniture and alt. duckets, I’ll be making a new post abut each one, but here is the current list:

*Dia. 301 (full brake)
*Dia. 281 (4 compt. brake third or composite 3rd/2nd (regular length & variant with short buffers at one end))
*Dia. 239 (5 compt. lavatory third corridor)
*Dia. 240 (5 compt. lavatory third corridor non-gangway)
*Dia. 243 (6 compt. excursion third (regular length & short buffers at one or both ends))
*Dia. 245 (5 compt. third, second or composite 3rd/2nd (regular length, alt length 4 (Ex. Dia. 156) & short buffers at one or both ends))
*Dia. 149 (4 ½ compt. mono-lavatory luggage composite w/ third class coupé)
*Dia. 156 (5 compt. composite (regular length & short buffers at both ends))
*Dia. 164C (4 compt. semi-corridor luggage and lavatory composite)

chrisjo

Wow!
That looks like Kings Cross in 1908 unless I’m very much mistaken. 😉

Donald9Douglas10Oliver11mp

chrisjo

It very much is! More specifically the train shed that is now platform 4!

I really liked how the image showcased a lot of the early GNR vehicles.

I’ve managed to Identify that the second line from the right has a rake made up of a: Dia. 303 Full brake, Dia. 281 Brake third with revised duckets, Dia. 245 third, potentially a Dia. 142 luggage composite, another Dia. 245, a Dia. 128??? lavatory luggage composite and a pair of some kind of 6 wheel full brakes
As for the line third from the right, my guess would be a Dia. 245, The soul built Dia. 149 luggage mono-lavatory composite w/ third class coupé (no 277) (Just a day before I thought I would never find a photo of it and even though it’s no ideal it’s still so incredible, considering that there was only one ever built… and at least out of the 6 wheel coaches it’s my favorite diagram), a Dia. 156 composite and a Dia. 281, then followed by a log rake of 8 & 12 Howlden clerestory corridor stock.
The rest of the coaches are some Howlden flat roof 8 wheelers, a Gresley 8 wheel coach on the right most line and a lot of the 8 & 12 clerestories.

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