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Neil's SDJR 3D Prints


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Not everything went so well, I had a go at a 10ton brake, and while the brake standard came out a lot better than before, I need to adjust the width of the footboards as they are bending outwards. also for some reason the handrails came out wonky:

 

20231118_225157.jpg.dccfcadabbc874eb14d7efa2e8ac882c.jpg

 

20231118_225207.jpg.4b3f1752f98150517762e19d072fd624.jpg

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A S&DJR ballast wagon, later diagrammed by the SR as 1732. This is something I drew last year, but couldn't get  a print without it warping. Slight change to the design, by adding a support frame to the top of the body, as well as below, and it has come out dead square 

20231120_144419.jpg.f9e9e180d5cdc42c60a591017e9799ea.jpg

Neil

Edited by neilkirby
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Results in this thread speak for themselves. I continue to have issues with distortion when a roof or floor is included or on anything with windows/openings. Would you mind sharing the details of your supporting frame, supports and print orientation?  

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This weekend I have printed 2 versions of the smaller S&DJR ballast wagons, (diag. 1732) which have come out ok, I just need to add some anti-suction vents, that I previously removed as I thought I would not need them. In between them is a slightly larger version, This was an easy one to draw as it was very similar but 1ft longer, later diagrammed as 1733, This turned out to be a failure due to an unnoticed error on the brakes17321733ballastwagons.jpeg.73a5f28bd09ad7eff1da28999cb9a8d0.jpeg

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Next up, but too cold to print today will be the S&DJR 31' engineers wagon,  SDJR31EngineersWagon2.jpg.dc95156860525615dc3b7a3d498694f6.jpg

 

This wagon looks exactly the same as a Midland railway wagon, the only difference I can see is the axle boxes.

Regards,

Neil

Edited by neilkirby
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4 hours ago, richbrummitt said:

Results in this thread speak for themselves. I continue to have issues with distortion when a roof or floor is included or on anything with windows/openings. Would you mind sharing the details of your supporting frame, supports and print orientation?  

Hi Rich,

Please see the image below to see what I have been doing, It probably uses as much resin in supports as it uses for the model itself. This may not be the most effiencient way, but it works for me, and is better than failures. I have used this for a while for vans as this was all I drew at the time. when I did my first open wagon. it still warped. I then added a smaller, but similar support frame on the top edge of the open wagons. Hope this helps. Forgot to add that I normally tilt everyting 15° in the slicer software.

Supportframe.jpg.5ed45fa6340807cc89923e19eeac6d39.jpg

Regards,

 

Neil

Edited by neilkirby
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So last night I took a chance with the temperature and printed the first off of the 31' Engineers wagon (no. 1242). This morning  I woke up to this. Other than the brake gear safety loops failing, which is down to my bad habit of going too fine. I would say this needs no further work. I am really pleased with the outcome. 20231128_085611.jpg.2242836e24816d7dc1d03908631b62dc.jpg20231128_085744.jpg.7c4bb24f09d4c5d1d3270f37c2738835.jpg

Regards,

Neil

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  • 2 weeks later...
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10 hours ago, neilkirby said:

 

 

So after various disappointments with my own chassis design.  Last week I received a Hornby Ruston 88ds, and after a bit of  work and a couple of a compromises, this is the result.

 

 

 

 

Neil,

 

That looks great - the 88DS is a superb runner.

 

Would you mind itemising the compromises to which you refer - your solution does seem to be the way to go?

 

John Isherwood.

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Thanks for the interest John. The compromises were, (1) moving the axle boxes further apart by a small amount, I cannot remember exactly how much now, but I think it was 0.5 - 1mm. (2) most of the lower boiler, below the running plate went to make way for the Hornby chassis block, but  a small section of it remains to give a facsimile of what should be there. (3) the chassis extends so far down that it affects the positioning of the brakes.  In this video they are too low, I will work on a solution to that, but just adding the Sentinel brakes improves the look greatly IMHO. I currently have a cavity in the top of the front to make space for extra weight,  but I hadn't added any in for this video, and it ran fine, so that will come out. After I had this running for the first time last night, I just sat there grinning to my myself.  I was so pleased with the way it ran, after  couple of years messing around  not being happy with my own chassis.  I'm sure my wife thought I had gone mad!

Edited by neilkirby
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Also I forgot to mention that inside the boiler is room for a stayalive unit. i had ordered a lais dcc  6-pin chip and stayalive, which only turned up in the post today.  I know you don't use dcc John , but thought I would mention  it anyway.  I was considering if there would be room for a speaker in the front, but nobody does sounds for it anyway!

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3 minutes ago, neilkirby said:

Also I forgot to mention that inside the boiler is room for a stayalive unit. i had ordered a lais dcc  6-pin chip and stayalive, which only turned up in the post today.  I know you don't use dcc John , but thought I would mention  it anyway.  I was considering if there would be room for a speaker in the front, but nobody does sounds for it anyway!

 

For my model railway philosophy, available space equates to lead ballast!

 

John Isherwood.

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  • 2 weeks later...

It may well be a damp boxing day just to the west of London in 2023, but in the miniature world in my head it is Radstock Yard in the summer of 1952 ,FB_IMG_1703587469192.jpg.ca55efeabc18bc3df3ee68c1373f3bd0.jpg

FB_IMG_1703588708268.jpg.1f79421064cbdb4e9c9e55b98e2cab09.jpg

 

You might notice no chassis under 47191 this is due to Hornby's non-existent quality control, as the 2nd 88ds I bought the motor runs but the wheels don't go around! Also no paint on the buffers either as both my tins of the right colour were dry.

Neil

 

 

Edited by neilkirby
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On 28/11/2023 at 19:24, neilkirby said:

So, next is the painting. But what colour? S&DJR engineers wagons are supposed to be red oxide, but looking at the picture, I'm not so sure!image.png.4db259eb53dacc84d27e04faaf9d46ea.png

 

Red oxide would appear dark owing to the lack of red sensitivity of the photographic emulsions of the time. 

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1 hour ago, neilkirby said:

It may well be a damp boxing day just to the west of London in 2023, but in the miniture world in my head it is Radstock Yard in the summer of 1952 ,FB_IMG_1703587469192.jpg.ca55efeabc18bc3df3ee68c1373f3bd0.jpg

FB_IMG_1703588708268.jpg.1f79421064cbdb4e9c9e55b98e2cab09.jpg

 

You might notice no chassis under 47191 this is due to Hornby's non-existent quality control, as the 2nd 88ds I bought the motor runs but the wheels don't go around! Also no paint on the buffers either as both my tins of the right colour were dry.

Neil

 

 

A good year, I was born in the July.

 

Merry Christmas everyone.

 

All the best

 

Ray

 

 

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  • 1 month later...

Not posted for a while, but after getting my Sentinel bodies to fit the Hornby 88ds chassis, I have been trying to work it around a Highlevel Quad drive as I originally intended,  but have still been struggling with that. To get something real done, rather than just messing with CAD. I printed off and painted a newer version of Joyce, but this time in Croydon gas works livery:

20240301_002654.jpg.383e02f6c40d7e0d50892dc955549015.jpg20240301_002702.jpg.72e68b30c7704b66daac93d6696da10c.jpg

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57 minutes ago, neilkirby said:

Not posted for a while, but after getting my Sentinel bodies to fit the Hornby 88ds chassis, I have been trying to work it around a Highlevel Quad drive as I originally intended,  but have still been struggling with that. To get something real done, rather than just messing with CAD. I printed off and painted a newer version of Joyce, but this time in Croydon gas works livery:

20240301_002654.jpg.383e02f6c40d7e0d50892dc955549015.jpg20240301_002702.jpg.72e68b30c7704b66daac93d6696da10c.jpg

 

Neil,

 

So - to recap - is the Hornby 88DS chassis a goer for the S&DJR version and, if so, is that version of the body available to buy from you?

 

John Isherwood.

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