Smokey Sophie - A Roundhouse/Riverdale Amy coal fire build

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Smokey Sophie - A Roundhouse/Riverdale Amy coal fire build

Post by tom_tom_go » Wed Feb 27, 2013 11:05 am

Here I plan to document my build of a Lady Anne with a Riverdale coal fired 'Amy' boiler.

The chassis kit is a birthday present, however, I was allowed to open it yesterday (because I am a child really) so I got started straight away!

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I am trying not to use CSK screws as I think they ruin the look of locos.

Could I ask those in the know if I can clean the chassis using white spirit or even enamel thinners after rubbing down with Scotch-Brite green or do I have to buy cellulose thinners?

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Post by Lner fan Sam » Wed Feb 27, 2013 8:20 pm

this is gonna be special!!!
my first live steam engine build thread:
http://gardenrails.myfreeforum.org/about6685.html

Sam Wake

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Post by TTHLRMatt » Wed Feb 27, 2013 10:26 pm

I would probably recommend celulose thinners just as a note, I have used the other stuff and did not clean it as much but purely opinion.

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Post by Paul H » Sat Mar 02, 2013 6:28 pm

Tom_tom_go_go,
That is going to be a lovely model. A chassis is a good birthday present indeed.

Would you mind measuring the diameter of the expansion link bearing hole diameter and the distance from the top of the hole to the top of the mainframe? I am starting to work on a project that involved Roundhouse running gear componenets, and I need to establish this dimension for layout of the frame in preparation for cutting.

Paul

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Post by GTB » Sun Mar 03, 2013 3:01 am

Paul H:80754 wrote:I am starting to work on a project that involved Roundhouse running gear componenets, and I need to establish this dimension for layout of the frame in preparation for cutting.
If you download the Walscaerts Valve gear instruction book from the Roundhouse website, it has a drawing with the critical dimensions for laying out their valve gear on a scratchbuilt chassis.

You will find it on the download page. The vertical position of the pivot hole is set from the horizontal centre line of the cylinders, not the top of the frames.

Graeme

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Post by Paul H » Mon Mar 04, 2013 7:17 am

GTB,
Thanks for the lead to that diagram. It will be very useful when laying out my chassis for cutting. The only piece of information that it does not provide is the distance from the center of the expansion link bearing to the top of the chassis. I need the aforementioned dimension to be able to use the weight shaft brackets (penguin brackets) from stock instead of modifying or making my own.

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Paul

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Post by GTB » Mon Mar 04, 2013 10:07 am

Paul H:80834 wrote: I need the aforementioned dimension to be able to use the weight shaft brackets (penguin brackets) from stock instead of modifying or making my own.
Roundhouse don't supply that, as they've no idea what shape frames are being used on a scratch built chassis.

Once you've laid out the driving axles, that sets the position of the cylinders, which sets the position of the trunnion bearing. You then measure the penguin bracket to determine where it sit on the frames.

It will depend on the depth of the frames of your chosen prototype whether the bracket has to sit in a recess, or on a bump, unless you are lucky....

If you change the size of the penguin bracket, then you need to make new lifting links and so it goes. Laying out valve gear is always fun :roll:

Graeme

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Post by Paul H » Mon Mar 04, 2013 11:26 pm

I am fortunate in that the upper frame edge is hidden by skirting, so I can use the stock dimension without fear of ruining the aesthetics.

http://www.16mm.org.uk/newsite/images/w ... hoto66.jpg

Erin is the subject of my project, of course using as many commercial parts as practical to preserve what little remains of my sanity...

Paul

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Post by LakeshoreMike » Mon Mar 18, 2013 10:04 pm

4.8mm - I asked Roger at last year's RH open day. It doesn't matter what frames are being used, if you plan on using the RH 'penguin' bracket, the distance from the centre of the trunnion bearing hole to the top edge of the frame in that region has to be 4.8mm otherwise the penguin will either not fit or it'll waddle. This might be amusing in the antarctic but not on a loco.

Mike

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Post by tom_tom_go » Sat Jun 01, 2013 2:03 pm

So back on topic after my thread was hijacked ;)

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I always thought I would only ever have just one live steamer, how wrong was I :)

Molly (the cat) looks annoyed because I sold the diesel chassis that was meant to have her name on it to help fund this coal fired project.
Last edited by tom_tom_go on Sat Jun 01, 2013 2:49 pm, edited 1 time in total.

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Post by LnBmad » Sat Jun 01, 2013 2:47 pm

Looks like a sweet little project you have there....

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Post by WVLR » Sat Jun 01, 2013 3:11 pm

I always thought I would only ever have just one live steamer, how wrong was I
Humm Yes, too true, I've got 4 now!

Your projects looking good though and maybe you could rename the cat :)

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Post by Boustrophedon » Sat Jun 01, 2013 8:34 pm

I was wondering if you could persuade Roundhouse to part with a Silver Lady chassis, it's the same dimensions as Lady Ann but has sprung wheels so the centre one actually does some work.

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Post by GTB » Sun Jun 02, 2013 10:18 am

Boustrophedon:84221 wrote:I was wondering if you could persuade Roundhouse to part with a Silver Lady chassis, it's the same dimensions as Lady Ann but has sprung wheels so the centre one actually does some work.
So this thread doesn't get hijacked again, this topic was covered recently in the following thread. The answer is not what most people think........

http://gardenrails.myfreeforum.org/ftop ... asc-30.php

Graeme

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Post by GTB » Sun Jun 02, 2013 10:36 am

tom_tom_go:84172 wrote: Molly (the cat) looks annoyed because I sold the diesel chassis that was meant to have her name on it to help fund this coal fired project.
My sub-miniature tiger wears that expression frequently, especially when I chase her out of the workshop.

Nice paint finish on the new chassis. When is your Riverdale boiler due for delivery?

I see Riverdale are proposing to do a coal fired kit for Katie. Now you know the next project to start saving up for........ ;)

Regards,
Graeme

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