Brassmasters Duchess test build

best33
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Re: Brassmasters Duchess test build

Postby best33 » Wed Nov 20, 2019 3:50 pm

grovenor-2685 wrote:
The photo below shows the way I do it.

Or rather it shows the end result :) More information on the way its done would be very useful.
Regards

The slot is put in the axle on the outer edge around 2mm deep using a milling machine but it could be done with a saw it just won’t look as tidy. The wheels are fitted and when the quartering is satisfactory the slot in the axle guides the drill to produce the slot in the wheel hub. Then you push a pin in. This method allows the wheels to be removed easily from the axle if necessary.

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Wed Nov 20, 2019 7:11 pm

There’s more pictures of progress so far now on the Brassmasters site

http://www.brassmasters.co.uk/Coronation_pre-production_build.htm

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Mon Dec 16, 2019 7:04 pm

I've moved away from the loco for a while as the next stage of the build is the cylinders and I don't have the castings i will need for them just yet. So attention has shifted to the tender.

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The first stage is the outside sub frames - a simple box really. The kit allows for springing or internal compensation. I've opted for springing.
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Underside of the tender showing the sub frame, brake gear and water scoop gear. A little fiddly but its been fun to build so far.
Image

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Thu Dec 19, 2019 10:35 pm

The tender chassis is now effectively done - Not a lot else to say really so here's some pictures.

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Right hand side

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Rear end

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Front, or loco end.

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JackBlack
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Re: Brassmasters Duchess test build

Postby JackBlack » Fri Dec 20, 2019 9:26 am

Looks awesome. Really nice clean job. Presumably the holes in the back of the axlebox castings allow for the movement of the axles? Or you had to grind them out?

Cheers, Nick

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Fri Dec 20, 2019 5:41 pm

Hi nick

I needed to open them up. The axle boxes and springs are separate but a couple of seconds with a round burr in a minidrill is all that was needed.

Cheers

Jim

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Fri Apr 24, 2020 11:24 am

Moving on to the tender body...

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Brassmasters supply a basic sub structure with different overlays for the 3 main types of tender found behind a Duchess.

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This is the coal chute and front bulkhead assembly.

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The 2 sub assemblies test fitted together.

Dave Holt
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Re: Brassmasters Duchess test build

Postby Dave Holt » Fri Apr 24, 2020 8:03 pm

Jim,
Good progress with the body. It looks as if the sloping base to the coal space does not extend right back to the rear bunker bulkhead. Is there another piece to bridge the gap, part of the coal pusher perhaps? Or is just an illusion?
Dave.

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Fri Apr 24, 2020 11:37 pm

Hi Dave

You are right. The coal pusher is a 3d print. I guess it fills the gap but haven’t got that far yet.

While you’re on. How heavy is a Brassmasters stanier tender without additional weight? If I secure the front bulkhead I won’t be able to get back Inside later unless I cut a hole in the floor.

Cheers

Jim

Dave Holt
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Re: Brassmasters Duchess test build

Postby Dave Holt » Sat Apr 25, 2020 11:44 am

Sorry, Jim, I don't know the weight. I can't remember if I have added any extra ballast to the Brassmasters tenders I've built in the past, but it shouldn't require much to deflect the CSB wires a bit. You always could place weight in the coal space, if needed, unless you're modelling it empty,that is.
Dave.

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Sat Apr 25, 2020 11:52 am

Thanks Dave

I might end up cutting a hole in the floor anyway as I haven’t decided where the decoder will end up yet. The tender is 68 grams so far with a lot of stuff still to be added.

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Sun Jul 12, 2020 5:04 pm

Image

Progress on my tender build continues. This is the front end with some of the detail started.

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And the rear end.

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Inside showing the fire iron tunnel and and the coal pusher which is a 3d print.
Below are the some images of the tender in its nearly complete state. There's still a few bits I need such as the ladder etc but focus will now shift back to the loco.

Image

Image

Image

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Horsetan
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Re: Brassmasters Duchess test build

Postby Horsetan » Tue Jul 14, 2020 10:59 pm

Going well there :thumb

Hopefully the kit will be available some time next year.
That would be an ecumenical matter.

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Mark Tatlow
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Re: Brassmasters Duchess test build

Postby Mark Tatlow » Thu Jul 16, 2020 1:08 pm

I have just plonked some rather nice (and in a pair of cases unusual) pictures of the early Coronations on my external blog:

https://highlandmiscellany.com/2020/07/ ... mment-4563
Mark Tatlow

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jim s-w
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Re: Brassmasters Duchess test build

Postby jim s-w » Thu Jul 16, 2020 4:22 pm

Great stuff Mark.


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