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Author Topic: Dr Al's workbench - Fowler 2-6-4T  (Read 59411 times)

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Online Dr Al

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Re: Dr Al's workbench - B12/3
« Reply #465 on: March 18, 2019, 11:04:51 PM »
I wonder if there is a suitable Evergreen plastic square tube or similar so you could cut a section of the drawbar out and rejoin it within a length of the tube.

Possibly....or maybe rectangular brass tube (obviously short enough not to touch loco/tender) to give a shroud that the shortened drawbar halves could be epoxied to.

Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

Online Dr Al

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Re: Dr Al's workbench - B12/3
« Reply #466 on: March 23, 2019, 12:42:30 AM »
As so often with these things, I never like the final stage of completion - namely varnishing. If ever there's a time it's all going to go wrong, and you've got the most to loose, that is it.

For a long time I've used spray cans of Testors Dullcote, but this is getting increasingly hard to obtain, and like so many things, the EU friendly version is pretty frigging mediocre, and nowhere near as good as the original formulation, being nothing like as matt, and with a tendency of crinkling paintwork if you end up laying it on thick.....which obviously starts to happen when the matt is so much less effective - there've been times I've sprayed semi-gloss models with dullcote and they've remained completely semi-gloss thereafter, no matter how many coats, how much agitation of the can etc.

So given I had almost none left, I've tried something different on the B12 - and nearly came a cropper!

The problem wasn't the actual varnish (Phoenix Precision), but probably what I did - namely that I slightly over thinned it and then airbrushed just a little too much on to the loco (tender fine). Fortunately I checked the model after an hour or two and to my horror had some small areas of bright white in corners and edges where the varnish had slightly gathered and the matting agent seemed to gather up to a white deposit.  :veryangry: :censored:

In a kill or cure I whipped out thinners and cotton buds and took as many of these areas back off to gloss. Fortunately I'd glossed this before and after decalling, so the decals were strongly sealed in, and therefore I think this saved a disaster. After air drying this, a lighter layer (and less thin) was resprayed on the affected areas, and it looks like this has gone down fine, and luckily I don't seem to see any areas where the join of removed varnish and non-removed is actually visible.

I would not have liked to have to strip it and re-do that lining job......  :confused1:  :doh:

There are now a few touch ups to make in matt black, but all going well it should be done thereafter (oh...and I need to fit the safety valves, and probably give the rods a dark wash). It'll be interesting to see how robust this varnish is, as even the EU-dullcote is very robust. In terms of matt, the Phoenix is far better - very light spray gave a much more significant matting than a thick layer of EU-dullcote, so hopefully this was a learning curve and it can replace dullcote going forward.

Hopefully you can't see the joins ! :





Lesson learned - less is more!

Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

Online longbow

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Re: Dr Al's workbench - B12/3
« Reply #467 on: March 23, 2019, 01:26:20 AM »
I have 3D printed and experimented with some UM replacement drawbars of various lengths. How much shorter you can go will depend on the loco and minimum radius but on a Dean Goods and a 10.5 inch curve it looks as if a 2mm shorter bar (ie 12.5mm) will work. If anyone wants to try these I can send you the CAD file.

Offline Milton Rail

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Re: Dr Al's workbench - B12/3
« Reply #468 on: March 23, 2019, 12:49:50 PM »
Some superb work on display Alan and your words of wisdom and encouragement have got me inspired to start trying to improve the models I have, starting with the accessory packs, which I normally leave in the box.

Thanks for all the amazing work you keep posting up

Online Dr Al

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Re: Dr Al's workbench - B12/3
« Reply #469 on: March 24, 2019, 09:51:10 PM »
Final shots of completed B12:







Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

Offline paulprice

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Re: Dr Al's workbench - B12/3
« Reply #470 on: March 24, 2019, 10:19:49 PM »
It looks brilliant absolutely brilliant, even to an LMS modeller :)

Offline Newportnobby

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Re: Dr Al's workbench - B12/3
« Reply #471 on: March 25, 2019, 09:35:32 AM »
Them's the pics I've been waiting for.
Another masterpiece, Alan.

Offline Stevie DC

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Re: Dr Al's workbench - B12/3
« Reply #472 on: March 25, 2019, 11:32:38 AM »
Incredible work as always Alan!

Online Chris in Prague

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Re: Dr Al's workbench - B12/3
« Reply #473 on: March 25, 2019, 12:00:25 PM »
Truly superb work. I am very glad that the Matt vanishing was a success in the end.

Online Train Waiting

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Re: Dr Al's workbench - B12/3
« Reply #474 on: March 25, 2019, 01:38:33 PM »
Excellent, Alan; truly excellent.

Congratulations.

John
'Why does the Disney Castle work so well?  Because it borrows from reality without ever slipping into it.'

(Acknowledgement: John Goodall Esq, Architectural Editor, 'Country Life'.)

The Table-Top Railway is an attempt to create, in British 'N' gauge,  a 'semi-scenic' railway in the old-fashioned style, reminiscent of the layouts of the 1920s to the 1950s.

Offline Shiney Sheff

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Re: Dr Al's workbench - B12/3
« Reply #475 on: March 25, 2019, 08:30:07 PM »
Absolutely superb model, looks as good as any RTR.  :greatpicturessign:

Bob

Offline Camster

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Re: Dr Al's workbench - B12/3
« Reply #476 on: March 27, 2019, 10:36:51 PM »
It’s a pleasure to see how you achieve such great results and thanks very much for sharing the info about the matt varnish.

Online Dr Al

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Re: Dr Al's workbench - B12/3
« Reply #477 on: May 26, 2019, 10:31:54 PM »
Been a while since the last upload. I've been busy trying to knock off some projects than have been lying around for all too long.

First is a Farish 4P. This model is pretty elderly, and will never be a stunning representation, but there's lots to be done.

As standard:





Modifications include the following:
- Replacement Bachfarish wheels throughout.
- front end detailing, lamp irons, coupling hook, vac pipe
- cylinder tops re-shaped
- larger front bogie wheels fitted and modified front bogie to accommodate them (clearing the cylinders is a real challenge on this model)
- a new scale BH Enterprises tender, modified with pickups (necessary for this model)







The loco now looks a lot better, and fits much more in and around modern models. It's worth effort, because it's a more interesting wheel configuration and type, that isn't really available in any other way.

Beyond that, some refurbishments to old models that have been lying around for far longer than they should. The first are two Peco Jubilees. After mechanical overhaul, both were repainted into BR Green and have come up very nicely. One will soon be for sale (any interest?) as I can't really justify keeping either, but I've already weakened to keep 'Sturdee'!

Some minor works to complete - mainly tidying and lining the cylinders.

[/url]







Cheers,
Alan
Quote from: Roy L S
If Dr Al is online he may be able to provide a more comprehensive answer.

“We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.” – Dr. Carl Sagan

Online RailGooner

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Re: Dr Al's workbench - B12/3
« Reply #478 on: May 26, 2019, 11:18:34 PM »
Beautiful work as ever. :thumbsup: :thumbsup: :thumbsup:
“We are indebted to those soldiers who served with courage and distinction to bring peace to Northern Ireland,” UK Defence Secretary Gavin Williamson said. “The welfare of our former service personnel is of the utmost importance.”

Per Ardua ad Astra | Mens Agitat Molem | Victoria Concordia Crescit | Utrinque Paratus | Caveat lector

Offline Newportnobby

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Re: Dr Al's workbench - B12/3
« Reply #479 on: May 27, 2019, 09:32:10 AM »
Your work never fails to impress me hugely, Alan :goggleeyes:

 

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