Castle Aching

[Buhar]

1 hour ago, wagonman said:

 

Don,

Sparkshot do a 3D printed 'kit' for this and the Small Goods as well. Worth a look. https://www.shapeways.com/product/VZKEUQ92S/7mm-fr-e1-cambrian-spc-basic?optionId=63090775&li=shops

 

 

Go direct to Gavin, he's on here as @Knuckles

You'll get a better resin print and it'll be cheaper. I think he's still able to get his ingredients. 

Alan 

Edited May 4, 2020 by Buhar

[Edwardian]

4 hours ago, Donw said:

 

Last time I spoke to Dragon Models they were supposed to bringing out a 7mm etched brass kit. I would have been asking about it this Saturday but of course the ALSRM show is cancelled. I do have a Drawing.

 

Don

 

2 hours ago, wagonman said:

 

Don,

Sparkshot do a 3D printed 'kit' for this and the Small Goods as well. Worth a look. https://www.shapeways.com/product/VZKEUQ92S/7mm-fr-e1-cambrian-spc-basic?optionId=63090775&li=shops

 

 

 

40 minutes ago, Buhar said:

Go direct to Gavin, he's on here as @Knuckles

You'll get a better resin print and it'll be cheaper. I think he's still able to get his ingredients. 

Alan 

 

I believe Gavin will do 7mm prints.  His home resin prints are superior to Shapeways and very significantly cheaper.

 

When I re-order, I might take the loco and tender chassis from Shapeways in WSF, but ask Gavin to print the bodies. 

 

This is one supplied to the West Norfolk Railway, so may be a mix of Cambrian and Furness details, but Gavin does both. This is his home print (in 4mm).  Very good.

 

 

 

Top supplier, Gavin Rose. 

[Edwardian]

2 hours ago, Compound2632 said:

 

W. Worsdell Class L: 7'6" + 8'2" = 15'8"

Holmes Class D: 7'6" + 8'0" = 15'6"

Hornby current Jinty: 31 mm + 33 mm = 64 mm => 7'9" + 8'3" = 16'0"

Triang classic Jinty: 1 7/32" + 1 9/32" = 2½" => 7' 8 7/8" + 8' 1 5/8" = 15'10½

 

To the best of my knowledge, it's always been the Jinty chassis under the J83 body moulding. To short for an LMS Standard 3F (a particularly large 0-6-0T) but too long for most others!

 

 

Closest I've got is the GWR 5600 0-6-2T.  Correct wheel size, but 5" out on the w/b and I wonder if that makes it better or worse than the Old Hornby Jinty?  Of course, I realise that don't know the wheel diameter of the Hornby chassis.

 

5600          4’7 ½”              7’3” + 8’         =  15'3"

L Class      4’7 ½”              7’6” + 8’2"      =  15'8"

[Compound2632]

14 minutes ago, Edwardian said:

I realise that don't know the wheel diameter of the Hornby chassis.

 

19 mm. 

[Buhar]

2 hours ago, Compound2632 said:

 

19 mm. 

I don't know if things have improved recently, but the centre wheel on the Hornby 0-6-0t has a vestigial flange only and I think it is either a touch smaller or set higher. As your daughter might say, not a good look. 

 

19mm scales out at 4'9" the diameter on an LMS 3F was 4'7". 

 

Additionally, for those thinking of tinkering with a second hand example, the drive can be either to the front axle or the middle one.

 

Alan 

 

 

[Compound2632]

Just now, Buhar said:

I don't know if things have improved recently, but the centre wheel on the Hornby 0-6-0t has a vestigial flange only and I think it is either a touch smaller or set higher. As your daughter might say, not a good look. 

 

19mm scales out at 4'9" the diameter on an LMS 3F was 4'7". 

 

Additionally, for those thinking of tinkering with a second hand example, the drive can be either to the front axle or the middle one.

 

Alan 

 

The example I measured is moderately recent (2010/2011) - Made in China, centre axle drive, all wheels flanged and of the same diameter. Going further back there were various dodges; the Triang version simply used the wheel centres without the flanged steel tyres on the centre axle - essentially a jack-shaft driven 0-4-0!

[Hroth]

1 hour ago, Compound2632 said:

 

The example I measured is moderately recent (2010/2011) - Made in China, centre axle drive, all wheels flanged and of the same diameter. Going further back there were various dodges; the Triang version simply used the wheel centres without the flanged steel tyres on the centre axle - essentially a jack-shaft driven 0-4-0!

But the Triang approach at least paid lip service to the idea that it was an 0-6-0, the old Lima attempts, from N to O gauge had the outer wheels coupled and the centre pair undriven, floating free, a genuine 0-4-0!

 

Edited May 4, 2020 by Hroth
ruddy autocorrect...

[sem34090]

More like A-1-A...

[Compound2632]

20 minutes ago, sem34090 said:

More like A-1-A...

 

Well that's simply a question of notation. However, in an A1A or 0-2-2-2-0, the centre pair of wheels are in contact with the rails!

[Nearholmer]

Pedantic voice (no change there then): an A-1-A has the two outer axles separately driven.

 

TBH I have no idea what the notation would be under the UIC system if the centre axle had actual carrying wheels; there may not be a notation for it.

 

 

Edited May 4, 2020 by Nearholmer

[Compound2632]

There's that weird Belgian locomotive that breaks the system. A six-coupled tank engine with carrying wheels ahead of the trailing coupled axle. Hey! that was easy... Perhaps the old-fashioned way perpetuated by HM Inspectors has merit:

four-coupled with tender = 2-4-0 unless otherwise qualified

bogie four-coupled with tender = 4-4-0

etc.

[Northroader]

50 minutes ago, Nearholmer said:

Pedantic voice (no change there then): an A-1-A has the two outer axles separately driven.

 

TBH I have no idea what the notation would be under the UIC system if the centre axle had actual carrying wheels; there may not be a notation for it.

 

 

 

Pretend it never happened. A-3-A ???

 

Edited May 4, 2020 by Northroader

[Compound2632]

0-2-6-2-0 or vice-versa.

[brack]

1 hour ago, Hroth said:

But the Triang approach at least paid lip service to the idea that it was an 0-6-0, the old Lima attempts, from N to O gauge had the outer wheels coupled and the centre pair undriven, floating free, a genuine 0-4-0!

 

Have you seen the horror of the old Lima n gauge B-B chassis, thats actually the standard 4w motor bogie with a pony truck each end and fake bogie siderames.

Lima were responsible for quite a few crimes against wheel arrangement notation

[Nearholmer]

The four-wheel motor block in the middle plus two pony trucks dodge has a very long and respectable heritage in tinplate trains, both for “bogie” electric locos (which could well be clockwork) and for steam locos: see the picture of the Flatiron that I posted before.

 

Some didn’t even have the pony trucks, just the dummy side-frames. I think the Hornby 1920s Met electric is like that, although above the running plate it’s not a bad representation of the real thing.

 

 

Edited May 4, 2020 by Nearholmer

[Edwardian]

35 minutes ago, Northroader said:

 

Pretend it never happened. A-3-A ???

 

 

There's a prototype for everything ....

 

In this case, the Bassett-Lowke steampunk range.

[Nearholmer]

5 minutes ago, Edwardian said:

the Bassett-Lowke steampunk

 

I'd rather you didn't put all those words together in one sentence; it upsets me terribly.

[webbcompound]

No need to muck about with badly designed fake steam punk when the real thing actually existed. I'm working towards this one in a different (non pre-grouping) life (warning: colourised picture)

 

[Hroth]

1 hour ago, Northroader said:

 

Pretend it never happened. A-3-A ???

 

 

Nord CME "Lets build it and see what the cleverclogs make of the wheel arrangement"  (In French, naturally)

 

(According to Google Translate, lit. "Permet de le construire et de voir ce que les sabots intelligents font de la disposition des roues")

 

14 minutes ago, webbcompound said:

No need to muck about with badly designed fake steam punk when the real thing actually existed.

 

The evils of a virtually unlimited loading gauge... 

 

 

 

[Compound2632]

8 minutes ago, Hroth said:

les sabots intelligents

 

Un sabot de distribution is, apparently, the device called a dealing shoe, used for rapid and reliably random card distribution in casinos. Un sabot intelligent would appear to be a more sophisticated version - patent here. I don't think there's any connection with "clever clogs"! Idioms are a particularly glaring weakness of Google Translate.

[Northroader]

The French commentary on that loco is worth quoting to get the flavour:

”etait un defi aux lois de la statique”.... “ce fut un fiasco complet”...”on avait adopte une solution beaucoup plus compliquee et qui n’etait pas viable”...

[Northroader]

How about a bogie in the middle, and another bogie at each end?? (That will work better)

Edited May 4, 2020 by Northroader

[Compound2632]

20 minutes ago, Northroader said:

How about a bogie in the middle, and another bogie at each end?? (That will work better)

 

Those have been done over on the Imaginary Locomotives thread.

[monkeysarefun]

2 hours ago, Nearholmer said:

 

I'd rather you didn't put all those words together in one sentence; it upsets me terribly.

 

On the basis of  "stick some  gears on it and call it steam punk" this one might be more palatable, also at NSW rail museum Thirlmere...

 

 

[Knuckles]

Thanks for the shout out.

 

Will just clarify I still have several liters of resin and around 13 of alcohol so good to do 3D printing still.

 

The chassis I'll be making Shapeways only as they turn out better but the body kits n details still fine to print here.  Have covered most the Cambrian and Furness variants for the loco's in question.

 

As to 7mm prints on the Photon, due to small bed the bodies likely would have to be chopped in half but could have a look to see what's viable if anyone is interested here.  Tenders will fit anyway.

 

So far I chopped up one of my Pacific bodyshells and printed it in two halves.  Join line wasn't bad but does need a dab of filler as expected.

Edited May 5, 2020 by Knuckles