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Newman Miniatures: N and 00 Scale 3D-Printed Scratch Aids


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Good luck with the project - the 3D print wasn't designed with motorising in mind, but never say never.  Worse come I did design a motorised truck that can give the illusion of propulsion.  Similarly if you were to use fixed rakes this could work with your layout plan.

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Hi Folks,

 

I have taken a different direction from my usual 1970's BR Blue era and purchased a Newman Miniatures version 2 Rocket along with the appropriate tender. The 3d print represents the locomotive in its 1830 condition which was similar to the new locomotives that were built to the modified design which were named, Arrow, Wildfire, Dart, Comet, and Phoenix. The only other 0-2-2 types were Northumbrian and North Star which were similar but with enlarged boilers.

 

Should I be able to motorise the 3d print then I shall have a think about an 1830 L&MR railway layout with some of the various types of locomotive from the era available as 3d prints. The Rocket print that I have is the smallest of the 3d prints that I would need for such a layout and therefore any other designs may be a slight easier as they are larger.

 

So far I have managed to carve away the underside of the locomotive body shell and remove some of the bulkheads so that the motor may be fitted inside. As the motor is a tight fit it stays the body where the bulkheads have been removed. I intend to use a set of Romford 18mm driving wheels but as yet I don't have any, my main problem so far will be worm drive gear sets that have a worm with a 1mm hole.

 

The body has been altered so that I may use an 18 tooth spur gear which is 9.6mm diameter however there would be space to fit a 28 tooth gear which would be 15mm diameter using 0.5 modulus gears. Does anyone know of perhaps a gear set with a worm that fits a 1mm shaft and a spur that fit a 3mm shaft that may be around 50:1 ratio ?

 

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L&MR motive power line up with the N20 motor.

 

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Side view of Rocket with the motor installed.

 

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Underside view shewing the motor and the bulkhead that will need to be cut back for a 15mm diameter spur gear.

 

Gibbo.

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Hi Folks,

 

The Rocket is currently stopped until supplies arrive however I received three Dapol Rocket kits two of which I have been bashing into a model of Sans Pereil.

 

There does seem to be a variation of yellow and green for the livery of Sans Pereil, does any know which is the most likely authentic to 1829/30 period or is it all best guesses for no one really knows ?!?!

 

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Rocket and Sans Pereil form the front.

 

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Rocket and Sans Pereil form the rear.

 

Gibbo.

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16 hours ago, Rudititanic said:

Looks great so far.  I thought the accounts suggested green livery, hence the replica, but most likely no-one really knows for sure.

Hi Dr Titanic,

 

My confusion is that so far I have either paintings of the original or photographs of the replica that are all different, so far I have found:

  1. Green Loco with yellow wheels and green boiler. Yellow tender with yellow wheels and yellow barrel. Painting/Science museum model.
  2. Green Loco with yellow wheels and green boiler. Green tender with yellow wheels and varnished barrel. Photograph of replica.
  3. Green loco with yellow wheels and varnished boiler. Green tender, yellow wheels and yellow barrel. Photograph of replica.
  4. Green Loco with yellow wheels and varnished boiler. Green tender with yellow wheels and varnished barrel. Photograph of replica.

Strangely the contemporary painting and the model in Science museum shew the only variation not carried by the replica as far as I can make out. One of your models turns up in the search for images and it is version 4 of the above, I have to say I'm stuck between versions 1 & 2.

 

Gibbo.

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6 hours ago, Gibbo675 said:

Hi Dr Titanic,

 

My confusion is that so far I have either paintings of the original or photographs of the replica that are all different, so far I have found: [et al]

 

 

Variations indeed, and to add to the mix I have a c1870s illustration with an entirely different tender structure altogether!  Considering the relative inaccuracy of most depictions of the Trials since the 20/30s (replicas included to varying degrees) it is probably best to go with your own aesthetic preference, as all that seems to be known is green & yellow generally.  As for my scratchbuilt model, it has a green boiler as I followed the replica.  

 

As an aside, am loving the 'Dr Titanic'!  (Fyi I used to be secretary of the British Titanic Society; my other specialism.)

Rudi

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Hi Folks,

 

Some supplies arrived in the post today and I have got on and had a fiddle about seeing how they could be made to work, so far it's looking good. The only thing that didn't quite work out was my attempt to solder the motor to the gearbox it was meshed well but slightly wobbly so I cheated and ran some cyanoacrylate glue into the joint and it is quite solid.

 

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Body shell and components.

 

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Motor and gear box shewing 40:1 gears ready to be fitted into the enlarged void in the body shell.

 

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The fit will have to be eased as the sides bow outwards and rub the backs of the wheels. I like that the motor gearbox is a push fit as it makes it easy to remove should it need to be. If when finally fitted it is a slight loose a drop of PVA will keep it secure.

 

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On its wheels for the first time.

 

One modification to the body print is to glue some .020" overlays between the boiler bands as compared to both my Dapol Kit and Hornby Rockets it looked a little skinny. The one good thing is that the overlays will bolster the body shell as quite a lot of material has been removed to get the motor in place and it left the body shell quite thin.

 

 

Gibbo.

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Hi Folks,

 

I've been working on my Newman Miniatures Rocket and I have got it to work, better yet that it managed to pull its own tender !

 

The pick ups for the locomotive have been soldered onto a piece of PCB material which was glued to the bottom of the motor, wires were then soldered between the PCB and the contacts of the motor. The motor has had a small piece of Milliput placed upon its top edge so that when it hardens the motor will be in the correct position height wise, tomorrows job will be to fill the voids with as much lead as possible for traction purposes. The pick ups I fitted to the tender caused all sorts of trouble so I removed the wires, the PCB has remained as I use good glue !

I found on eBay some Hornby Rocket cylinders, slide bar and connecting rod assemblies so I bought two of them and with luck I shall be able to fit them up onto the locomotive somehow.

 

I have also made up some draw hooks from a paper clip and ordered some blackened chain for couplings. The Rocket, bolster wagons and the mail coach have been fitted accordingly.

 

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Shewing the PCB and pick ups, also the engine to tender coupling.

 

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The pick ups will be painted black and will likely be pretty much unnoticeable.

 

Gibbo.

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  • 2 weeks later...

New Releases: Coincidentally coming out alongside big-brand 00 equivalents, these generic N Gauge 4-wheel and 6-wheel coaches enable easy creation of early trains under a wide variety of companies. With two panel styles and both compartment and brake variants, there is something for everyone.

https://www.shapeways.com/product/WTYG3U2VA/n-gauge-generic-4-wheel-brake-coach-v1

 

Also available is a motorised 4-wheel equivalent for operating unpowered locomotives, plus alternate clearstory roof sections for added variety.

 

#IMG_0847.jpg

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Very useful coaches, I'll be ordering a few once I've sussed out how much extra stuff from Shapeways will cost as still not clear how much UPS are charging to collect the VAT on behalf of HMRC :(

The 4 wheeler is great for catering for the 1st class passengers but is there any chance of a 5 door version for the riffraff  ;)

 

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2 hours ago, Gareth Collier said:

Very useful coaches, I'll be ordering a few once I've sussed out how much extra stuff from Shapeways will cost as still not clear how much UPS are charging to collect the VAT on behalf of HMRC :(

The 4 wheeler is great for catering for the 1st class passengers but is there any chance of a 5 door version for the riffraff  ;)

 

Glad you like them, and a five-door variant could be possible.  Will have to look into it (or a commission...!).

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3 hours ago, Gareth Collier said:

Very useful coaches, I'll be ordering a few once I've sussed out how much extra stuff from Shapeways will cost as still not clear how much UPS are charging to collect the VAT on behalf of HMRC :(

The 4 wheeler is great for catering for the 1st class passengers but is there any chance of a 5 door version for the riffraff  ;)

 

Hi Gareth,

 

I ordered one of Dr Titanic's Northumbrian models with an appropriate tender just this evening, the cost was €9.99 Locomotive, €10.12 Tender and €8.14 Consumer sales/shipping.

 

I'm scratch building carriages and wagons so I'm happy to pay for the ease of build with the locomotives.

 

Gibbo.

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2 hours ago, Gibbo675 said:

 

I ordered one of Dr Titanic's Northumbrian models with an appropriate tender just this evening, the cost was €9.99 Locomotive, €10.12 Tender and €8.14 Consumer sales/shipping.

 

That's the easy bit and not the final cost! UPS will now import it and HMRC will require the UK VAT to be paid where previously, pre Brexit, you paid the Dutch tax at source. UPS will bill you for the VAT and add their handling charge for collecting it which is somewhere between £5.60 and just over a tenner. Their charge is the hard to clarify bit at the moment.

Edited by Gareth Collier
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5 minutes ago, Gareth Collier said:

That's the easy bit and not the final cost! UPS will now import it and HMRC will require the UK VAT to be paid where previously, pre Brexit, you paid the Dutch tax at source. UPS will bill you for the VAT and add their handling charge for collecting it which is somewhere between £5.60 and just over a tenner. Their charge is the hard to clarify bit at the moment.

Hi Gareth,

 

I shall post the results of the activities of the "Theiving C U Next Tuesday's" as and when.

 

Gibbo.

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  • 2 weeks later...

Finished!  Now available at https://www.shapeways.com/product/DSFRKD8SM/n-gauge-stirling-single-loco-scratch-aid with a choice of three tenders: Ivatt (as operated) -  scale but unpowered or stretched but motorised - and Sturrock (as inititally preserved).  

 

 

 

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(Motorised tender)

 

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(Scale unpowered tender)

Edited by Rudititanic
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Have your say!

Several have queried the possibility of producing the Listowel Lartigue in 00 - something that would take considerable work to redesign (especially for operation). As this would need quite substantial interest in order to be viable, please comment if it is something you would be keen on purchasing. The more people, the greater chance of it happening...

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A few new updates - more Lartigue stock (brake van and another coach), some broad gauge track (as opposed to dual-gauge already available), and this unhappy-looking engine...  https://www.shapeways.com/product/UFE7MX5J6/n-gauge-lsquo-lion-rsquo-stationary-boiler

 

With many early locomotives being repurposed as stationary boilers (or in this case as a pumping engine), this model is a rendition of L&MR 'Lion' as recovered in 1928.  Perfect for sheds, wagons or (dare one say) even scrapyards...!

Edited by Rudititanic
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  • 4 months later...

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