warren haywood
Western Thunderer
Absolutely ..........., no, wonderful doesn't go far enough
Tom Mallard's Workbench
- Thread starter Tom Mallard
- Start date
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- Tags
- 4mm lner locos scratchbuilding
Puddlejumper
Western Thunderer
Simply stunning, my gast is flabbered......
Tom Mallard
Western Thunderer
Thanks all for taking the trouble. You're very kind!
Best regards
Tom
Best regards
Tom
Tom Mallard
Western Thunderer
Thanks, Dibateg.
That's because it is held together by will power. No, solder is one of those things that people can get hung up on, but I try to keep things relatively clean and tidy as it means that there's hopefully nothing there to spoil the paint finish. Anyhow, using nickel silver means it's harder to spot... The format of the article wasn't my idea, btw, but I always like detailed captions. However, I'm also aware that sometimes this was a little confusing if the text was skimmed through. A lot of information was squashed in, and next time I will maybe have to go in to more detail on a few things.
Best regards
Tom
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Tom Mallard
Western Thunderer
It's been a little while... but here's the K3 finished at last.
As usual completion was extremely involved, even once the body work had been very finely finished by Ian Rathbone. But it works smoothly and reliably which I found is equivalent to looking good in the overall scheme of things.
There's been a lot of work to finish this model so if anyone has specific questions then please do ask.
I will get some better pictures of the K3 at some point, but for now these will have to do.
Tom
As usual completion was extremely involved, even once the body work had been very finely finished by Ian Rathbone. But it works smoothly and reliably which I found is equivalent to looking good in the overall scheme of things.
There's been a lot of work to finish this model so if anyone has specific questions then please do ask.
I will get some better pictures of the K3 at some point, but for now these will have to do.
Tom
Tom Mallard
Western Thunderer
A few things to add.
Work on model building has slowed since recommencing a career in Engineeering Design.
However, I have researched and drawn up an LMS Compound for Scaleseven which is turning out to be very rewarding based on the scale and skillset applied to this project.
I am combining everything I have learnt over the past 10 years or more to produce something fitting, with a miniumum of etching used, most parts are machined or fabricated by hand, and all the rivets are embossed, making very good use of my CAD model to position these details. The frames are to be in 3 sections as per the prototype and have lap joints to provide a useful narrowing toward the front of the engine, which is very slightly exaggerated by using slightly overscale frame material. All the frame parts are cut from 0.8mm nickel silver sheet.
I have tried hard to reproduce the subtle variation in rivet size and type throughout the model, so for example the cab has 4 rivet sizes.
The tender tank has progressed well, though presented some challenges in that although based on Deeley's 3500 gallon tender, its tank is rebuilt from a 4000 gallon bogie tender, and no drawing can be found for this. Cross referencing with various Midland Railway GA's and meticulous observation of photos helped give something that must be very close.
Thoughts are shifting to the frame stretchers and motion, the Richard Hersey produced wheelset having been in hand for some time now so it is about time they were put into use.
The frames and bogie are profile milled with a template also milled and drilled to be used as an embossing pattern. Care must be taken to ensure the correct rivet or bolt head is reproduced for each side and each face of the frame component, and this is particularly so on the areas of lap joint.
I must also add that the K3 although finished for some time now, it had a number of extra pictures taken for its MRJ article though very few of the completed model were used.
Best regards
Tom
Work on model building has slowed since recommencing a career in Engineeering Design.
However, I have researched and drawn up an LMS Compound for Scaleseven which is turning out to be very rewarding based on the scale and skillset applied to this project.
I am combining everything I have learnt over the past 10 years or more to produce something fitting, with a miniumum of etching used, most parts are machined or fabricated by hand, and all the rivets are embossed, making very good use of my CAD model to position these details. The frames are to be in 3 sections as per the prototype and have lap joints to provide a useful narrowing toward the front of the engine, which is very slightly exaggerated by using slightly overscale frame material. All the frame parts are cut from 0.8mm nickel silver sheet.
I have tried hard to reproduce the subtle variation in rivet size and type throughout the model, so for example the cab has 4 rivet sizes.
The tender tank has progressed well, though presented some challenges in that although based on Deeley's 3500 gallon tender, its tank is rebuilt from a 4000 gallon bogie tender, and no drawing can be found for this. Cross referencing with various Midland Railway GA's and meticulous observation of photos helped give something that must be very close.
Thoughts are shifting to the frame stretchers and motion, the Richard Hersey produced wheelset having been in hand for some time now so it is about time they were put into use.
The frames and bogie are profile milled with a template also milled and drilled to be used as an embossing pattern. Care must be taken to ensure the correct rivet or bolt head is reproduced for each side and each face of the frame component, and this is particularly so on the areas of lap joint.
I must also add that the K3 although finished for some time now, it had a number of extra pictures taken for its MRJ article though very few of the completed model were used.
Best regards
Tom
Attachments
adrian
Flying Squad
Impressively clean and sharp work. The beading on the side of the cab and splashers is it half etched or have you profile milled the overlays? Given the sharpness of the beading I suspect the latter.
Tom Mallard
Western Thunderer
They are overlays, but not profile milled. Because of the effort put into my CAD model I am not so constrained to using just profile milling, and chose to etch certain components. I was in two minds about this as I could see how etching might run against the handbuilt ethos, though in the end I came to my senses reasoning that all the work put into this had been my own, including any design aspects. I suspect my contemporaries who haven't used this technique in their own work perhaps just don't have the ability to do this?
I selected 3 material thicknesses 10, 15 and 18 thou which gave the opportunity to define the locations of embossed rivets and in some cases leave a scale thickness edge exactly where required such as the butt straps (10 thou) or cab front edge (half etched 10 thou). As with any etched part, the edge appearance was treated as necessary to remove any undesirable cusps.
So there you go Adrian, not all profile milled like the frames, just the best approach (in my opinion) for the task or detail being modelled.
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