Caledonian Class 294 "Jumbo"

[mickrik]

Hi John

I would like to do the 3F Mackintosh 0-6-0T loco next, not sure what class number it is but a fair few made it through to the early 60's

I just checked my ABC and well what would youy know eh! it says class 782

yes please, though it will probably be at least a month before work can commence.

Now then...........that is a very fine array of Caledonian locos you have there, what line are you playing with them on?

Mick

[cardean]

Hi Mick,

This is the route I've made them for.

http://forums.uktrainsim.com/viewtopic. ... 40&t=99977

It's grown since I last posted about it.



John.

[mickrik]

Hi John

I am well impressed

mick

[metrobus]

You have certainly been busy John, they look really good, cant wait for them. I also can't wait to help out again, if indeed you have not done everything
Regards Edward

[mickrik]

Hi there,

her goes with the tender.

Again the first shot is the main outline shape. The next task is to manipulate the tank as it is symetrical in each direction.



Mick

[cardean]

It's looking good Mick

To answer your PM, the large gap at the back of the tender in your drawing was because, originally, the tender would have had a toolbox placed there. It was a "Victorian" thing.

BTW, expect an e-mail.

John.

[mickrik]

Hi There,

With a lot of useful help from John, I am making good progress with the tender.

I thought shaping the front top edge of the tender was tricky, cutting out the sideframes turned into a bit of a challenge and took even longer. I think I have got them shaped right and I have also added the axleboxes and springs.







Mick

[mickrik]

HI there,

It's about time I gave an update for this one. The model is now exported to the sim for the remaining work which mainly involves texturing.

I still have to make up a cab interior for it, whether it is a texture mock up or preferably if I can place some 3D controls on the footplate. There is a bit more work to do with the tender, and I need to correct the bounding box/loco tender spacing. This is always a bit fiddly.

Cardean has been very helpful with info so I can get this project.

Here is the latest screenshot



(some bad grammar) Ain't she pretty?


Mick

[emrhd01]

Very nice Mick, your Loco building is very much appreciated.

[decapod]

Mick - the loco tender gap is set by the size parameter
You might find you need to shift the main group axis of the tender back a bit (by half the buffer length) to take account of the length added by the buffers.
Ditto for the loco - you might need to shift the centre forward a bit (use my shift group and animations script)
Also make sure the coupling distances are correct front and rear.

[dee4141]

Looks a very nice model,Mick.

[mickrik]

Hi there,

Now I am realy beginning to tear my hair out :bad-words: :bad-words: :bad-words:

I have applied the base textures for the tender, I know that the crest is a little high and that is easy to remedy. My big problem and the reason for all my cussing is I cannot get the loco and the tender to couple together nice and close and still be able to couple onto wagons.

I have shifted the centre pivots to allow for the buffer lengths. I shifted the loco +19cm and Tender -19cm. The buffers are 38cm in length.

I still have a massive gap

If I alter the length of the tender in the wag file I can get a nice close gap between the loco and tender but I cannot couple up onto any wagons even though the bounding box is nicely lined up on the buffers.

If I shift the tender forward 30cm in shape file manager I get a nice close couple between the loco and tender and I can couple onto wagons ok.



BUT!!! for some reason the wheels no longer pivot on the axle centres but now travel in an orbit around what was the axle centre.



I need some help please. Before I go mad

Mick

[dee4141]

Mick, you haven't got two Automatic couplings in the .eng file have you? I seem to remember I couldn't couple with this arrangement.

[jbilton]

Hi Mick
I'm not a modeller .... but can you not shift the whole tender forwards before you export.
Altering the length in the wag file will work to a degree, but if its too much then as you have found you cannot couple.
The couplings hang off the intertia length, which is invisible.
However if you adjust the bounding box to the intertia length... then you can see it.
Using SFM can break certain models ... depending how they're are built.
Cheers
Jon

[mickrik]

Hi Danny,

Thanks for the reply,

I am using chain couplings and a bar between the loco and tender which is rigid to stop the bouncing effect.

Mick

Hi John

I have been looking at the bounding boxes as I adjust settings. In shape file viewer you can see both boxes. I am keeping both boxes lined up with the tender buffers.

I did do an export whwer I shifted the tender 40cm forwards but it did not seem to make any difference even though I exported a new matching wagfile for the new pivot perameters.

Thanks for the imput, there is an answer somewhere.

Mick