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Darjeeling Himalayan Railway - Motive Power - NDM6


Scottish Modeller
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  • RMweb Gold

Hi all,

 

OK - I'm still busy with this and the DHR coach builds....

 

Another parcel has arrived!

 

post-6887-0-39402900-1460556653.jpg

 

More to be revealed once I get further with what I am already doing!

 

As I'm posting....

 

The DHR 'Baby Sivok' that has been plinthed at Ghoom.

 

Is there or was there, a kit available to build this?

 

My memory says there was, but I don't remember and can't find out any details?

 

Someone give me a prod in the right direction!

 

Thanks

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  • 2 weeks later...
  • RMweb Gold

Hi all,

 

A bit more progress with the NDM6!

 

OK - Like I said - powering this thing was a bit of a hit and miss situation.

 

In the end - Tomitec power wins!

 

This meant I need to change some bits about and create a new mounting plate to suit it.

 

Whilst I was messing about with the brass - I made a few other bits that are needed!

 

First - showing all the options open to me.

 

post-6887-0-65650800-1461367100_thumb.jpg

 

Second - A closer shot showing the bits of bent brass.

 

post-6887-0-24549400-1461367165_thumb.jpg

 

I intend to get this lot all attached to the motor mounting plate or loco body over the weekend.

 

Thanks

 

Next - more chasis work

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  • RMweb Gold

Hi all,

 

I spent most of Saturday evening working out how to make the most essential detail parts for the NDM6...

 

Or - that's my opinion at least!

 

These bits

 

post-6887-0-92117200-1461508759_thumb.jpg

 

Talk about a pain to make - they sure are.

 

Anyway - I've come to a somewhat compromised way of creating something that looks the part.

 

Take 1 length of 3mm Square brass section - long enough to make 4 parts of this type plus some to hold in a vice or clamp to the workbench.

 

Drill a series of holes near the middle of the piece of brass.

 

Join up these holes so that you can get a jewellers piercing say into it.

 

With great care saw down the centre line of the piece of brass - but do not cut to the either end.

 

This should give you a piece of brass with a slot in it, but still held as one piece as you didn't cut to the ends.

 

Take a piece of flat brass sheet same thickness as the drill size ans same length as the saw cut you have made.

 

Insert this into the slot you have cut making sure that it is flush to one side of the square brass section.

 

Solder these pieces together.

 

Now take a piece of flat brass and cut to 5mm wide and solder this on top of the flush side of the brass section.

 

This should give you a T shape but with 2 square hollow pieces below the top piece of brass,

 

NOw - I'll have to do this again as I didn't think to take photos as I was trying it out!

 

Photos as soon as I do another section.

 

Thanks

 

ps - you end up with some really small bits to add to the model - Make more than you need as they are easily lost!

 

That's one of the reasons I need to make some more.....

 

Edit - Replace photo with larger image

Edited by Scottish Modeller
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  • RMweb Gold

HI all,

 

As per previous post...

 

Start to make the jacking points

 

Preparation is the key!

 

post-6887-0-56438500-1461509488_thumb.jpg

 

Makes it easier to do this...

 

post-6887-0-18437900-1461509475_thumb.jpg

 

When doing this - do it by hand - not electric drill!

 

There are 2, no 3, good reasons for this

 

1 - You have more control

 

2 - You won't break the drill bit as easily

 

3 - You won't end up with a drill bit through your finger.

 

Thanks

 

Next - Out with the Jewellers piercing saw or metal cutting fretwork saw if that's what you have.

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  • RMweb Gold

Hi all,

 

As per previous post (or one earlier!)

 

You know all those bits I showed?

 

Time to attach them to the body or chassis

 

post-6887-0-31068700-1461510391_thumb.jpg

 

post-6887-0-66073900-1461510401_thumb.jpg

 

All together now!

 

post-6887-0-99649300-1461510385_thumb.jpg

 

That leaves me to finish off making the jacking points.

 

Thanks

 

Next - Those Jacking Points....

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  • RMweb Gold

HI all,

 

I couldn't resist it!

 

Had to fit the sub chassis to the body.

 

post-6887-0-75605700-1461510535_thumb.jpg

 

Thanks

 

Now- about t hose Jacking Points....

 

ps - Forgot to say that I added the handrails whilst doing the soldering.

 

pps - Not forgotten that I need to and the door handles.

Edited by Scottish Modeller
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  • RMweb Gold

Hi all,

 

As per previous posting.....

 

The visit to the Paint Shop!

 

As described on the coaches thread - this was a nightmare!

 

Anyway - now (mostly) resolved.

 

post-6887-0-54966000-1462051374_thumb.jpg

 

post-6887-0-76129800-1462051384_thumb.jpg

 

Still some small bits to fit - the cab roof and the side surface grills will get a coat of paint tomorrow before putting them on the model.

 

One set of grills will also get the Hindi lettering added before they are attached to the model.

 

The other side - INDIAN RAILWAYS - will get done another way - but I'm still working on that!

 

Thanks

 

Next - Those other bits.....

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  • RMweb Gold

Just catching up after some time away,

 

The cab photo is either an NDM-5 as used on the Gwalior system , or an early series ZDM-5 (501-511) as used on various systems today including Dholpur & Dabhoi

Hi there,

 

Thanks for confirming that.

 

Still don't have an interior photo of the NDM6 so it looks like I will be making a general stab in the dark or a guesstimate of what it looks like!

 

Whilst I'm on...

 

Painting - a bit like the Forth Bridge used to be - I wish!

 

Following the paint nightmare with the coach I went and got new everything to try and avoid a repeat performance when painting the loco.

 

Did it work?

 

No.....

 

After the first coat as per the previous photos - I applied the top coat of the blue and hoped that was it.

 

It seemed to go on OK, so I put the painted model in a dust free site to allow it to dry.

 

I was a good boy and didn't go back to it for 24  hours.

 

The top coat has reacted wit the other coat and the model has pock marks on the finish.

 

So - It's now taking a bath to remove all the paint....

 

Please - not at all!

 

Thanks

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  • RMweb Gold

Hi all,

 

I'm losing the will to live and it's all because of the painting problem on this loco!

 

The loco is (3rd time) back to it's bare brass state.

 

Does anyone know if Precision Etch Primer has changed chemically?

 

I've never had a carry on like this in the past with it.

 

The coach used the last of my old time and now I'm using the new stock bought at Perth Exhibition last year.

 

It's almost as if the etch primer coat is still gassing after the top coat has been put over it.

 

I say this as there are what appear to be small bubbles or pock marks from popped bubbles appearing in the top coat.

 

Thoughts/suggestions?

 

Thanks

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  • RMweb Gold

Hi all,

 

At last!

 

It's painted and I'm happy with the finish....

 

I decided not to use the Etch Primer this time - good old Halfords Primer for metal in a rattle can instead.

 

This worked fine, nice smooth finish to the primer coat with no loss of detail.

 

Then into the sun (Yes - we have sun up here) for the paint to dry, model inside a ventilated propagation tray.

 

That was left for all of last night as I got on with other things.

 

Back out to the job this morning though!

 

First - has the primer has dried fully - yes.

 

Am I still happy with the finish - yes.

 

Time to put the blue on - yes

 

Now resting in the sun inside the propagation tray!

 

Initial inspection results in me feeling happy and thankful.

 

Thanks

 

Next? - Decals that don't exist - yet....

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  • RMweb Gold

Hi all,

 

As per previous posting....

 

Thought I'd better put up a photo!

 

Still waiting for decals though.

 

post-6887-0-81626200-1463086597_thumb.jpg

 

Thanks

 

Next - Progress on decals for numbers and the various bits of Hindi and English markings carried by the models

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  • RMweb Gold

On the cab, if you blow up the photo of the locos above the desk pic on the previous page you can see the same type of desk sloping down through the side window so I would guess they are common to both.

Also from the one photo in Iron Sherpa that shows anything the desk looks to be the same shape but the square switch box is to the top right not left.

Edited by PaulRhB
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  • RMweb Gold

Great job, but I think you need slightly larger wheels and a slightly longer wheelbase

 

http://im0.indiarailinfo.com/0/NEXT/NEXT/1078922/0//img0475.jpg

Hi there,

 

Yes - I am aware of both these factors.

 

Such are the constraints of using an RTR chassis!

 

I have another one in build already which will have a completely scratchbuilt chassis with the correct wheelbase and wheel sizes.

 

Thanks

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On the cab, if you blow up the photo of the locos above the desk pic on the previous page you can see the same type of desk sloping down through the side window so I would guess they are common to both.

Also from the one photo in Iron Sherpa that shows anything the desk looks to be the same shape but the square switch box is to the top right not left.

 

That picture of the control desk is from a ZDM-5. Which had a similar different cab.

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  • RMweb Gold

Yep I agree, but the photo above shows the same shape desk through the side window and the photo from Iron Sherpa we've shared shows the same shape up top. So I reckon it's the same basic desk, although the siting of the various extra switch boxes is different, which will be good enough for the model.

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  • RMweb Gold

Hi all,

 

As per previous posting....

 

AWe had the NDM6 running on Eddie Bristow's Darjeely 009 layout at the Kyle Exhibition over the weekend.

 

This allowed me to get a better idea of the vertical clearances required to enable the loco to get round the layout.

 

Photos of the stock after a visit to the layout and then some work on my exhibition temporary workbench!

 

post-6887-0-11572800-1463412535_thumb.jpg

 

Please note - this is just the 'quick fiddle' to lower the body so that it woukd run on the layout.

 

I will tidy the work up to make it a permanent solution. How did I do this? Well, when building the chassis I had allowed for the possibility that the body could be lowered once I saw what the minimum clearance to run on the layout was. A bit of work on the chassis mounting points allowed me to lower the body by 2mm. I will be able to lower it a further 1mm on the home workbench as I have better tools to achieve this at home.

 

post-6887-0-06389100-1463412595_thumb.jpg

 

The run on the layout also enabled me to discuss with Eddie the various coupling options available and suggest some solutions.

 

More on that later - I need to rough up some sketches to see how feasible the preferred idea is.

 

Thanks

 

To follow - details of my permanent lowering solution

Edited by Scottish Modeller
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  • RMweb Gold

I've heard that Adrian Shooter's DHR steam loco has been loaned to the Ffestiniog Railway.

Hi Colin,

 

Correct....

 

https://www.facebook.com/festrail/photos/pb.240578110715.-2207520000.1463748672./10156848472625716/?type=3&theater

 

Some video on YouTube as well - sounds really good.

 

Now - Who do I know that can make it into a sound file for a DCC decoder....

 

Thanks

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