GWR Steam Railmotor Chassis

Jeremy Suter
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Re: GWR Steam Railmotor Chassis

Postby Jeremy Suter » Fri Apr 06, 2018 8:50 pm

Hi Steve
Thanks for the comment and the question.
With regards to the solebars:-

Do they have separate overlays?
If so what thickness do you use for the overlays?
Is the river detail etched or punched from behind?
If punched from behind may I ask what tool do you use to get such consistency?


Here is a picture of the underframe etch. It shows that the solebar is a fold up with a half etched insert so that the rivets are uniform in height and width.
IMG_3178.JPG

It's etched in 12 thou nickel silver so that the half etch is 6 thou.
The solebar steps when folded up need the rivets pushing through from the back, I use a GW Models riveter but have since made new tools to fit it with different points and angles to the 45 degree pin point supplied and use the Limiter to keep the same depth.
I must admit that depending where the rivets are I sometimes just push them out with a scriber.

CornCrake
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Re: GWR Steam Railmotor Chassis

Postby CornCrake » Mon Apr 09, 2018 8:07 am

Hi Jeremy,
Thank you for your detailed reply, just what I needed.
Please add me to your list!
Steve

GWSGMember
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Re: GWR Steam Railmotor Chassis

Postby GWSGMember » Mon Apr 09, 2018 2:01 pm

Looking forward to the point when one can order this just like the Iron Mink.

Any thoughts on likely pricing yet for the underframe kit complete with castings etc for the powered bogie?

Ken

Jeremy Suter
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Re: GWR Steam Railmotor Chassis

Postby Jeremy Suter » Wed Apr 11, 2018 10:05 pm

Hi Ken
Thanks for the Question.
Any thoughts on likely pricing yet for the underframe kit complete with castings etc for the powered bogie?


Sorry Not as yet. Not finished the Castings still need to make the Bogie axlebox and springs.

Although things are getting closer, I have been re looking at the mounting bars and trying to get more rotation. This I have done by drawing up an etch which folds up into the two bars connected together with a central pivot then that can be screwed to a plate on the chassis giving the impression of fitted to the chassis mounts.
First test etch showing 3 units OO EM and S4 spacing.
IMG_3182.JPG

Plate fitted to the underneath of the chassis by the four screws as if mounted to the beams. A shouldered 8ba nut soldered through the central hole. The beam unit also slots over the nut so that the screw can be done up tight while still giving free rotation.
IMG_3183.JPG

IMG_3184.JPG

Chassis fitted to the underframe the screw can be just seen between the beams.
IMG_3185.JPG


I

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jsherratt
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Re: GWR Steam Railmotor Chassis

Postby jsherratt » Thu Apr 12, 2018 10:02 am

Hello Jeremy.

I may already have asked you this, but in case I haven't, would you put me down for one of these please when it is available?

It looks very good.

Thanks - John

kelham
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Re: GWR Steam Railmotor Chassis

Postby kelham » Mon Apr 16, 2018 6:14 pm

Likewise – I'll have two, please, when you're ready.


Richard Kelham

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Bernie
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Re: GWR Steam Railmotor Chassis

Postby Bernie » Wed Apr 18, 2018 5:45 pm

Exquisite work, Sir!

Bang me down for a pair. (for the future, when I can solder at the subatomic level!)

Regards,
Bernie

Jeremy Suter
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Re: GWR Steam Railmotor Chassis

Postby Jeremy Suter » Sun Apr 29, 2018 9:19 pm

Re: GWR Steam Railmotor Chassis
Post by Phil O » Thu Mar 22, 2018 4:57 pm
Hi Jeremy,

The un-powered bogie looks like a fishbelly, will you be making them available as a seperate item? I had a pair pencilled in with Chris Parrish, who has sadly passed away.


This post is specially for Phil.

I have redrawn the Fishbelly Bogie to a 9' wheelbase and test etched it.
IMG_3186.JPG


I spent the evening putting it together, a few minor errors but has gone together well. I will start writing the instructions on a new thread later this week.
IMG_3209.JPG


All those interested in the Railmotor chassis I am hoping to send a final production etch to the etchers this week and start doing the instructions on a separate thread the Valve gear etch still needs to be finalised so hopefully try and get that done in the next few weeks

Phil O
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Re: GWR Steam Railmotor Chassis

Postby Phil O » Mon Apr 30, 2018 8:17 am

Hi Jeremy

Thanks very much, looks great.

Phil.

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Horsetan
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Re: GWR Steam Railmotor Chassis

Postby Horsetan » Tue May 01, 2018 12:48 am

I'll definitely have two. Might even extend to a third, to put the etch in a picture frame and hang it on the wall.
That would be an ecumenical matter.

DougN
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Re: GWR Steam Railmotor Chassis

Postby DougN » Tue May 01, 2018 3:12 am

Oh horse up there with the Finney A3, a Malcolm mitchell something and a bardwell J27... one day you may build them! :D
Doug
Still not doing enough modelling

GWSGMember
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Re: GWR Steam Railmotor Chassis

Postby GWSGMember » Tue May 01, 2018 11:34 am

I would be interested in two - to build.

this is for the 59 foot Diagram Q railmotor if I remember the start of the thread.

I will be interested in two 70 foot version if you do those too!

Ken

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Horsetan
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Re: GWR Steam Railmotor Chassis

Postby Horsetan » Tue May 08, 2018 10:58 pm

DougN wrote:Oh horse up there with the Finney A3, a Malcolm mitchell something and a bardwell J27... one day you may build them! :D


The A3 and A4 have started, as has the Collett Goods.
That would be an ecumenical matter.

Jeremy Suter
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Re: GWR Steam Railmotor Chassis

Postby Jeremy Suter » Thu May 17, 2018 9:10 pm

The Casting Patterns for the Underframe, Chassis and Bogie of the Diagram Q Railmotor are now all done and gone for casting tonight.

IMG_3239.JPG

It was the bogie springs and axleboxes holding this stage up So when Tony Montgomery mentioned he would be mould making this week I finished them off unfortunately they only fit the 8 foot Fishbelly, the 9 foot version springs are 2mm longer so will have to make another set.
IMG_3240.JPG

I have made enough of each so that one spin makes I Unit without sub mastering.

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Horsetan
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Re: GWR Steam Railmotor Chassis

Postby Horsetan » Mon May 28, 2018 9:29 am

Looks very inviting. :thumb
That would be an ecumenical matter.

Jeremy Suter
Posts: 100
Joined: Tue Apr 14, 2009 6:56 pm

Re: GWR Steam Railmotor Chassis

Postby Jeremy Suter » Wed Jun 06, 2018 10:46 pm

Received this morning the castings for the Railmotor and very pleased with them. Thanks Tony you have done a good job with them.
The gas tanks have a slot milled in them to position them on the fold down bracket on the underframe. Then the straps can be wrapped round to hold in place. The Buffers will need drilling out for the heads and I think the Vacuum Cylinder will need some of the base filing off to move it closer to the body.

IMG_3270.JPG

I have stuck the Sand Boxes on with double sided tape and placed the Cylinder tops on for now just to see how they fit and slotted the boiler base in which has a washout plug in.
Attachments
IMG_3272.JPG

GWSGMember
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Re: GWR Steam Railmotor Chassis

Postby GWSGMember » Thu Jun 07, 2018 4:12 pm

This is looking excellent and I'm just working out how many I need (or can afford) to get my Blacksmith models working a treat.

Phil O
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Re: GWR Steam Railmotor Chassis

Postby Phil O » Fri Jun 08, 2018 7:41 am

It looks very good.

Phil

Jeremy Suter
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Re: GWR Steam Railmotor Chassis

Postby Jeremy Suter » Tue Jun 26, 2018 10:31 am

Just had produced a production tool for the Chassis etch and run once.

IMG_4360.JPG


I now need to build one up to check it, and write the instructions. Then have the Valve Gear etch double checked before I get a production tool done.

GWSGMember
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Re: GWR Steam Railmotor Chassis

Postby GWSGMember » Tue Jun 26, 2018 12:31 pm

This is looking so good I cannot wait to order at least two to get my Steam Railmotors brought up to 21st century standard from the mid 70's or 80's of the 20th century.

I don't know how much encouragement you need Jeremy but I'm behind you all the way!

Ken

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Craig Warton
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Re: GWR Steam Railmotor Chassis

Postby Craig Warton » Wed Jun 27, 2018 10:49 pm

I am another who must say "me too" I have a Mallard 59' kit to modernize and a Kemilway 70' etch to equip - so I will be interested in the 70' version as well if that is on the radar.

Regards,

Craig Warton

Jeremy Suter
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Joined: Tue Apr 14, 2009 6:56 pm

Re: GWR Steam Railmotor Chassis

Postby Jeremy Suter » Sun Jul 22, 2018 8:00 pm

Production Tool now Made for the Valve Gear Etch.
Just waiting on the Gear Sets and a and a days Milling for the Body Mounts.
IMG_4510.JPG

Phil O
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Re: GWR Steam Railmotor Chassis

Postby Phil O » Tue Jul 24, 2018 12:56 pm

Jeremy,

They look very nice.

Phil

CornCrake
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Re: GWR Steam Railmotor Chassis

Postby CornCrake » Sun Jul 29, 2018 3:35 pm

Jeremy,
Reviewing the Blacksmith(nee Mallard) body etch,
Mallard_Etch.jpg
and the method of attaching coach ends via fold down tabs with holes for buffers
Part_Fig_2.jpg
Part_Fig_2.jpg (103.43 KiB) Viewed 263 times

& noting that your underframe incorporates it's own buffer beam, would a solution be for me to fold the tabs up instead of down, and crop the bottom of the coach end?
Also before I start removing parts from the etch I suppose it would make sense to wait for the arrival of your chassis kit, so that fixing holes in the body floor can be drilled to coincide with your fixing holes.
In the meantime I shall be patient & start making a list of the extra parts required to complete the body.
Wheels, gas lamp tops, shell vents ( I assume short)...
Steve

Jeremy Suter
Posts: 100
Joined: Tue Apr 14, 2009 6:56 pm

Re: GWR Steam Railmotor Chassis

Postby Jeremy Suter » Tue Jul 31, 2018 7:39 am

Hi Steve
Some interesting questions you have made.
At The moment I am about to release the Railmotor chassis kit only. So don't do any thing to your body etch.
I will be releasing an undeframe and body kit later. Possibly as seperate kits but not sure yet the Underframe and Bogie etches are now almost complete, and I am midway through drawing the body.


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