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Tony Wright

Wright writes.....

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3D pri ting was set up in NASA to allow Astronauts to make replacement tools (including adjustable spanners) with no need for them to be a stable item. BAE Systems used 3D printed items (non structural) to keep the VC10 and Tornado fleets flying (replacements for obsolete boxes etc).

 

On our club layout the big bits of 3D printed ites have been stable but smaller items (such as telegraph posts) have twisted a bit (but only the odd one or two)

 

Until we have a bit more background knowledge of the prints used it will always be a bit hit and miss using 3D prints.

 

However, we must be more circumspect of using the prints as long term masters until we know how stable the materials are.

 

I remeber the start of kits being provided with resin bodies/boilers etc. Things twisted, shrank (or didn't  shrink when the mould designwanted it to!) Getting paint to adhere was a problem as was adding weight. Seems like with 3D printing some people have taken a similar approach to the use of Resins.

 

Use the best material to do the job. It could be metal , plastics, 3D peinting or resin. Some of the items I was involved in at the design/manufacturing stage are still in use after 40 years (doesn't  time fly) and some of my locos and stock  are older than 40. My late fathers plasticard bodied locos have suffered a lot with age..but his brass locos are still fine.

 

Choose your materials wisely.

Baz

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9 hours ago, Jol Wilkinson said:

Fortunately I did so and also painted them which would, I subsequently learned, reduce the possibility of UV degradation.

 

 

I did note once that when plastic plumbing pipework etc.  is used outside the manufacturer recommends painting them to protect against UV degradation

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I was looking on the Hornby page for what they were saying about the A2s and saw that for the A2/2 it said that they worked out of York shed down the GCR. I was told at a recent GCRS meeting that the only known picture of a Thompson pacific on the GC was of 500 at Nottingham Victoria going for naming. So is there other proof that Hornby’s statement is correct? 

Many thanks

Richard 

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Excellent! Is that step in the leading edge of the top access plate for the superheater header a genuine feature of the real thing?

Edited by gr.king

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33 minutes ago, MikeTrice said:

My most complicated 3D model to date was printed for the first time yesterday and is very much a work in progress:

 

IMG_1506.JPG.eaada523d551fb97e99468f010aaa635.JPG

 

IMG_1516.JPG.c3d33e191b2f705bc28bc3ef83443411.JPG

 

Why bother with the new Bachmann V2 announced? Good question. Reasons have all been given by Tony and others before me: cost; satisfaction; self-sufficiency and most importantly I wanted to prove I could do it.

 

 

 Do You plan to supply wedge fronted cabs to modify the new Hornby A2/2s?

 Hornby will not model the real Thompson shape as I understand the anouncement.

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41 minutes ago, gr.king said:

Excellent! Is that step in the leading edge of the top access plate for the superheater header a genuine feature of the real thing?

What this one?

IMG_1112.JPG.918d1fb2ed54604b06e68e618b4ecffb.JPG

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3 minutes ago, Niels said:

 Do You plan to supply wedge fronted cabs to modify the new Hornby A2/2s?

 Hornby will not model the real Thompson shape as I understand the anouncement.

Did not plan to but anything is possible. As long as it does not involve me having to buy a Hornby A2/2.

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2 hours ago, richard i said:

I was looking on the Hornby page for what they were saying about the A2s and saw that for the A2/2 it said that they worked out of York shed down the GCR. I was told at a recent GCRS meeting that the only known picture of a Thompson pacific on the GC was of 500 at Nottingham Victoria going for naming. So is there other proof that Hornby’s statement is correct? 

Many thanks

Richard 

 

Good morning Richard i

 

The A2/2 and A2/3 made occasional appearances on the GC on B16 diagrams. So occasional that it probably isn't worth building or buying one in preference to a B16. There are plenty of references to such workings in spotters books and  documented workings in the RCTS in the late forties early fifties. The diagrams were one of the Dringhouses to Woodford early morning fitted freights. They were usually spotted returning north on a variety of workings from ordinary passenger trains, a twenty odd carriage ECS movement and even a single brake van. Lord President, Cock of the North and Straight Deal, all in LNER green, some with British Railways on the tender, are a couple that I recall off hand. Cock of the North was photographed at Nottingham Victoria on the aforementioned ECS movement, so the GC Society are not correct. You would have to get up very early to catch them going south on the fitted freights. Re the Hornby A2/2, they are not producing the tooling for the LNER version of the locomotives, so they are of no use in a GC context. To be honest, if you were modelling these workings, a York B16 would be the typical motive power.

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Stepped front edge to superheater header cover indeed, that's a surprise!

 

V-front cab in resin, but I can't find the original, better quality images.....

 

image.png.293f3c7e17e541e35469b616f3a02776.png

 

Try the attached file instead.

v.doc

Edited by gr.king
Attempt to include better image

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2 hours ago, richard i said:

I was looking on the Hornby page for what they were saying about the A2s and saw that for the A2/2 it said that they worked out of York shed down the GCR. I was told at a recent GCRS meeting that the only known picture of a Thompson pacific on the GC was of 500 at Nottingham Victoria going for naming. So is there other proof that Hornby’s statement is correct? 

Many thanks

Richard 

 

Did the A2/2's stray off the ECML occasionally ? I model North Notts (imaginary GC / GN north of Nottingham). For comparison the WCML Duchesses etc ran over the Wigan Tyldesley Manchester line etc - this was a diversionary route for them mainly. Did A2/2's wander off the main line during similar main line closures ?

 

As to 3D printing - we have a long way to go - but will get there quickly - I think it's the future, and not just for model railways either.

 

Edited to add - just read Headstocks interesting and informative post above - thanks.

 

Brit15

Edited by APOLLO

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The V2 with that cover plate is a preserved loco, bear in mind that many of these locos have had different parts fitted in preservation for all sorts of reasons.

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18 hours ago, grahame said:

 

Unfortunately not. For the windscreens I've cut and filed clear plastic sheet to size and glued in place with the merest smidge of super-glue. They're pretty small, around the size of a small finger nail, so the smaller side windows/quarter lights are either left 'open' or filled with micro-glaze/Kristal Klear.

 

RailNsale vehicles (from Shapeways) do have templates available on their website but there is the faff of downloading and accurately printing them out, then carefully cutting along a printed line by hand. I find it easier and quicker to do by eye.

 

 

You could had a free small toenail!

 

One of mine keeps falling off!

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True. Happy for you to prove it is incorrect for the rest of class ;-)

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I think the shots of the Bachmann V2 body with the appalling joint lines really puts the problems with 3D prints into perspective IMHO. As someone who has never really bought RTR (and nearly all diesels in recent years when I have), can anyone confirm that present day RTR steam no longer has any sign of these. (I can’t believe models ever got produced like this - quite stunned).

 

Izzy

 

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50 minutes ago, Izzy said:

I think the shots of the Bachmann V2 body with the appalling joint lines really puts the problems with 3D prints into perspective IMHO. As someone who has never really bought RTR (and nearly all diesels in recent years when I have), can anyone confirm that present day RTR steam no longer has any sign of these. (I can’t believe models ever got produced like this - quite stunned).

 

Izzy

 

The Bachmann V2 in the post above is very old tooling.  Circa 1990. A completely new V2 without these issues will hopefully be seen late 2020

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46 minutes ago, Izzy said:

I think the shots of the Bachmann V2 body with the appalling joint lines really puts the problems with 3D prints into perspective IMHO. As someone who has never really bought RTR (and nearly all diesels in recent years when I have), can anyone confirm that present day RTR steam no longer has any sign of these. (I can’t believe models ever got produced like this - quite stunned).

 

Izzy

 

No idea of the vintage of that V2 body , it is the worse example I have seen , others however are not much better . The old V2 is years behind in quality , Bachmann made a serious mistake in thinking people would be daft enough to buy the same body on a new chassis only. They tried to same trick with the V1/V3 body as well which is just as bad. It has taken them 3 years or more ? to produce a new V2 body and hopefully a new Tender that is just as archaic , at a guess Replica origins 20 plus years old ?  . The down side is they are now asking about £220 for one !

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4 hours ago, richard i said:

I was looking on the Hornby page for what they were saying about the A2s and saw that for the A2/2 it said that they worked out of York shed down the GCR. I was told at a recent GCRS meeting that the only known picture of a Thompson pacific on the GC was of 500 at Nottingham Victoria going for naming. So is there other proof that Hornby’s statement is correct? 

Many thanks

Richard 

 

No photo I'm afraid but a vivid memory, of Lord President in Nottingham Victoria. I think around 1957. I would have been 4 and it's the first named loco I have any recollection of, running in from the south along platform 4. 

Ever since I've promised myself that one day I would build a model of it, maybe I'll just wimp out and buy the Hornby one.

The first class 87 I renumbered for our Carstairs layout was (obviously?) Lord President. I see that DRS have named one if their class 68s Lord President as well.

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1 hour ago, great central said:

 

No photo I'm afraid but a vivid memory, of Lord President in Nottingham Victoria. I think around 1957. I would have been 4 and it's the first named loco I have any recollection of, running in from the south along platform 4. 

Ever since I've promised myself that one day I would build a model of it, maybe I'll just wimp out and buy the Hornby one.

The first class 87 I renumbered for our Carstairs layout was (obviously?) Lord President. I see that DRS have named one if their class 68s Lord President as well.

 

Good Afternoon Great Central,

 

it's a no-go on Lord President I'm afraid, silly old Hornby have not produced the tooling for that particular locomotive. The DJH kit is also of no use for the same reason, Your best option is the PDK kit or the old Crownline one if you can find one. Alternatively, some sort of complicated cut and shut based on the Bachmann A2 that Mick LNER could show examples of. A2/3 steady Aim is a loco that pops up in a number of 1950s references.

 

P.S. You may have witnessed one of the final runs over the London extension by a Thompson Pacific. I don't have any references or evidence  later than 57.

Edited by Headstock
add P.S.
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9 minutes ago, Headstock said:

 

Good Afternoon Great Central,

 

it's a no-go on Lord President I'm afraid, silly old Hornby have not produced the tooling for that particular locomotive. The DJH kit is also of no use for the same reason, Your best option is the PDK kit or the old Crownline one if you can find one. Alternatively, some sort of complicated cut and shut based on the Bachmann A2 that Mick LNER could show examples of. A2/3 steady Aim is a loco that pops up in a number of 1950s references.

 

Thanks for that, I hadn't looked into the details of what they are producing. Highly unlikely I'll be buying a kit, I already have at least 15 loco kits alone still in their boxes, not to mention coach/carriage and wagon kits. Then there's the pile of stuff that I need to finish properly!

Given that most of my modelling enthusiasm disappeared getting on for 10 years ago now, I suspect much of the unstarted and unfinished stuff will stay in the same state.

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2 hours ago, MJI said:

 

One of mine keeps falling off!

 

Sounds rather careless. If the super-glue isn't working you could try soldering.

;-)

 

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43 minutes ago, great central said:

 

Thanks for that, I hadn't looked into the details of what they are producing. Highly unlikely I'll be buying a kit, I already have at least 15 loco kits alone still in their boxes, not to mention coach/carriage and wagon kits. Then there's the pile of stuff that I need to finish properly!

Given that most of my modelling enthusiasm disappeared getting on for 10 years ago now, I suspect much of the unstarted and unfinished stuff will stay in the same state.

 

Great Central,

 

I can sympathize with your lack modelling enthusiasm. Personally, I don't have that many kits left in the stash, having successfully built my way through them. I intend to complete what I've got plus one or two new purchases this year.  I can then claim that I will have accomplished what I stared out to do. Beyond that I am undecided on the future, the wishing, buying and collecting side of the Hobby has no appeal to me.

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6 hours ago, richard i said:

I was looking on the Hornby page for what they were saying about the A2s and saw that for the A2/2 it said that they worked out of York shed down the GCR. I was told at a recent GCRS meeting that the only known picture of a Thompson pacific on the GC was of 500 at Nottingham Victoria going for naming. So is there other proof that Hornby’s statement is correct? 

Many thanks

Richard 

 

I can find no reference to A2’s on the GCR, only a couple of Peppercorn A1’s.

 

The last years of the Great Central Main Line” by Robert Rowbotham shows 60123 H.A.Ivatt approaching Loughborough in 1962 with a four coach (!) Sheffield to Leicester train, and 60114 W.P.Allen at Leicester on an excursion in 1964.  

 

There seems to be rather more evidence of West Country Pacifics (Rebuilt and unrebuilt), Duchess’s, A4’s and even a Schools on RCTS and Ian Allen railtours, or football specials.  Plus Halls, Britannia’s, GT3, even a Crosti 9F on regular runs.  

 

But Thompson A2’s seem to be notable for their absence...

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GC Mainline north of Nottingham A pictorial album (Lowlander Publications) has a photo of A2 60517 Ocean swell just outside Sheffield Vic heading a local to Doncaster. "British Railways" on the tender and looks to be in light green livery (B&W photo). Date is June 1948. There is also a photo of 60123 heading the 17-53 Sheffield to Leicester train under the viaduct at Chesterfield Central 1 June 63. 

 

Being a GC fan I have all Colin Walkers excellent GC books, along with many other GC books and I can't recall any A2/2 photos - I'll have an interesting trawl through this week and report here if I find any !!. Also being a GC railway society member I'll have a trawl through all my "Forward" mags - that will take a while longer though. (as I'll find things to read again whilst doing so !!).

 

Brit15

 

 

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29 minutes ago, Chamby said:

 

I can find no reference to A2’s on the GCR, only a couple of Peppercorn A1’s.

 

The last years of the Great Central Main Line” by Robert Rowbotham shows 60123 H.A.Ivatt approaching Loughborough in 1962 with a four coach (!) Sheffield to Leicester train, and 60114 W.P.Allen at Leicester on an excursion in 1964.  

 

There seems to be rather more evidence of West Country Pacifics (Rebuilt and unrebuilt), Duchess’s, A4’s and even a Schools on RCTS and Ian Allen railtours, or football specials.  Plus Halls, Britannia’s, GT3, even a Crosti 9F on regular runs.  

 

But Thompson A2’s seem to be notable for their absence...

 

Good afternoon Chamby,

 

You need better sources,

 

the Thompson pacific's were more common over the London extension than any of the locomotives that you quote. i.e. Bulleid Pacific's, Duchesses A1's and A4's. You have also missed the Peppercorn A2 that was shedded at Annesley for a short time.

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