New Batch 4" DCC Road Loco

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Post  BurrellSimplicity on Tue 18 Jun 2019, 2:31 pm

Hi,

well we are playing catch up, as we arrived late to the new DCC batch party Very Happy
This is a project for my Dad as he's a retired model Engineer but getting lazy in his old age!  Very Happy

The front wheels are completed along with the smoke box. we have done some modifications to the smoke box, we re-welded the smoke box seam as it was cracked. I added weld to the inner smoke box seam and sealed around the front and rear ring with Foliac paste, this will stop any water from starting rust.

The tube was not contacting the front ring at the top were there is no rivet due to the chimney saddle. This was leaving a gap for air to enter and was not good. we drilled a 6mm hole on the mill through both tube and ring and added a counter sink bolt and nut, it pulled it together and there is now no gap, the chimney base then covers this bolt head up. Surprised STW don't do this anyway!

there also really is no need for the 2 counter sunk bolts just above the perch bracket, the so called dummy holes for the front perch bolts are actually drilled through so we added a proper bolt to these. the counter sunk bolts had there heads welded over and then smoothed.

I have ordered a nickel plating kit to give it a try out on the smoke box handles..

The smoke box is now ready to paint after a good going over with some emery cloth.

New Batch 4" DCC Road Loco 1DFC0538-645B-435A-A001-D7D3284D880C_zpspwbvfypc

Tender is underway so i hope to update as we go. we have a lot of kits to catch up on.!

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Post  JayBee on Tue 18 Jun 2019, 7:18 pm

Looking good and you are clearly putting a lot of effort into the detail.

I have been very pleased with my Nickel plating kit, just make sure you follow the instructions and the results come out well.

John

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Post  the governer on Tue 25 Jun 2019, 8:45 pm

My smokebox handles are non magnetic, so just polished them, they have stayed perfectly bright, stainless.
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Post  Steve Traill on Tue 25 Jun 2019, 10:23 pm

I found it didn't take much to strip the threads on the copper bolts holding the chimney casting to the smokebox. I made some steel threaded rivets by putting a bolt in a cordless drill & rounding the head off on a grinder. When its painted it looks the same. Then beat it in with the rivet dolly & put the nut & washer on. Much stronger & no worries when someone offers to help push your engine (when it's cold) and pushes the chimney!

Also I used Poplar wood as insulation (as I had some) so then used the ceramic insulation in other areas. One was between the smokebox door and the baffle plate. It stops the hot gasses getting behind the plate & heating up the door & then turning the brass all colours. I sealed it around the edges with high modulus silicone so it's easy to brush clean. Makes the smokebox door brass work pretty low maintenance now.
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Post  BurrellSimplicity on Mon 01 Jul 2019, 1:06 pm

I found the copper bolts pretty good to be fair and am pleased with the results so I just went with the copper. I too have some Wood lagging so might see if it fits and use it and save the other stuff for the door.

I have got the smoke box painted now and will be putting all the bots together over the next week or so. I have started sanded out the spinning marks from the chimney top to get it polished up also.

hope to have some picks soon..


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New Batch 4" DCC Road Loco Empty Painting & Polishing.

Post  BurrellSimplicity on Tue 09 Jul 2019, 12:51 pm

Painting and Polishing the smoke box.

It would appear that Plasticoat have changed their Woodstove paint. It's no longer as shiny as it used to be but still gives a better finish than the BBQ version.

Preparing to paint the front wheels, axle, spring and Perch Bracket. 2K paint is on order along with some Upoxy Super Etch Primer

still messing about with the gold for the lining but i think i'll be going for proper leaf.

Front names rings polished up ready to paint. the smoke box door handles are Stainless and came up a treat on the polisher.
Chimney top still not quit finished polishing yet and needs a little more buffer time. then the chimney can be put together and painted..

New Batch 4" DCC Road Loco 9C9D18A4-BE1D-414B-9049-957CF2DE4DA2_zpsusbso7te

New Batch 4" DCC Road Loco 23440697-1EA3-4E08-80E8-3F8AE75DDB7A_zpsty9xn3a4

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Post  BurrellSimplicity on Thu 01 Aug 2019, 12:57 pm

A colour test on the Perch bracket in the 2K top coat. this will be flatted back and given another coat, i'm still unsure if to line the Perch bracket or not as Lord Nelson does not have lining on it's Perch bracket but i feel it would be nice with something on it..

New Batch 4" DCC Road Loco F009D057-B388-41BD-B266-78367D5FDB05_zpsqnyx5i00

Close enough I think to Lord Nelson. it not quite as dark but once it's all got lined out it should be grand!!
New Batch 4" DCC Road Loco 2578A072-D7DF-455D-A4A2-0BA520261DE0_zpsn6pry2ab
Lord Nelson Perch Bracket with no lining!
New Batch 4" DCC Road Loco E95D2D49-4854-417F-BE5B-8B1027F7BC94_zpspfsohaxz

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Post  Midwest Steam on Fri 02 Aug 2019, 4:45 pm

Looking forward to seeing a mini Lord Nelson in steam. It’s an impressive engine to see upclose

New Batch 4" DCC Road Loco 5561cc10
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Post  BurrellSimplicity on Mon 05 Aug 2019, 1:29 pm

More paint has been done this weekend. The base colour looks different in different lights. Under artificial light it looks a little brown but in sun light it brings out the purple better.

The front fork was lined, I’m using GWR cream for inner lines as it’s not yellow on Lord Nelson.
Lining is all done free hand, except the 2k black that is masked and sprayed.
New Batch 4" DCC Road Loco 8971D68A-6A06-476F-B7E4-4E4E81C45996_zpstzx7bvau

The font axle was set out using 3mm and 2 mm tapes to get the right spacing and the masking done for the 2k black.
This was then sprayed and left to cure for a few hours. The black was rubbed back with wet and dry 800. The black went on a little thick and I learnt that I can do a thinner coat on the rest of the engine.
The red and cream lines were then lined freehand and have been left to dry.
Now I need to add the gold but I will be having a little test run first on a piece of metal I have sprayed up (seen below next to fork). This will hopefully let me check that putting the gold on over the masking is going to work and will give me crisp edges. I will then test the 2k clear coat over it all. If all goes well I will do the same to front axle.
New Batch 4" DCC Road Loco DA9444B9-07F0-41F4-B13E-8F8E1D0587EA_zpsih0uznrs
New Batch 4" DCC Road Loco 9DC694FD-44F2-42FB-BE9B-09D1AA52B2FC_zpstdm43laa
New Batch 4" DCC Road Loco 95533D75-C994-4E37-A5E7-2E6B81F677F0_zpsbopf4qpx

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Post  BurrellSimplicity on Fri 09 Aug 2019, 3:29 pm

I managed to get some time to test the gilding and the 2k clear over the top.
I had previously sprayed up a colour check card with base colour. This was rubbed down and then some very quick enamel lines added.
I trimmed my 24k gold to give me a strip to lay down. A small area was masked off for the gold size.
I’m using tinted 1 hour size and it’s at the right tack around 20-30 mins once applied with a fairly light coat.
The gold went down well and was pressed into the corners of the mask with piece of card with the backing tissue over the gold to protect it. I then removed the masking and let the size dry. A light burnish was then added with a squirrel hair brush.

New Batch 4" DCC Road Loco CD2470EC-AB09-4D2A-BD5B-69074757430C_zpssbkouvnh
New Batch 4" DCC Road Loco 1B211DA5-7015-4142-98A4-E758D82CAAEB_zpsedrkpasc

I added a few more test pieces one was with a thickish layer of size. This was not good as it did not dry when the gold was added and was why I wanted to test it.
This was left to dry over night and the next day I 2k clear coated it. I sprayed a light mist first and let flash off for a minute then added a fairly heavy top coat. I was pleased there was no reaction between the enamel or the gold size, apart from the over thick size that had not dried.

Having prepared the front fork and spring for clear coat by rubbing down with 1500 wet and dry these were both cleared.
They came out well so I can now gild the front axle and carry on with the rest of the engine.
Spraying the front wheels is next on the list along with tender and brake gear we have just received in the latest kit.

New Batch 4" DCC Road Loco 389BCA6B-74D0-474B-B3FC-489A744AA5BD_zpszjbftgqb

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Post  BurrellSimplicity on Mon 12 Aug 2019, 6:06 pm

And here is the first bit of gold on the front axle. All went ok it’s a bit annoying to use a mask as it does leave a raised edge but it’s the only way of making sure the size goes on quickly as you want it to be all the same tack level or it can spoil the gold.
All in all very pleased with it, using the tinted size made life easy as it’s already coloured, although a thick coat is not used or it fails to dry.
I found that any holes I could put a dab of size on then add the gold to patch but I didn’t have many to be honest.
Other side will be done then cleared to protect.
I also found that my water trap was not working properly as i wondered why i got small bumps in my 2K clear test piece. this was water getting sprayed out with the paint.. i have new water trap now so it should be ok!

New Batch 4" DCC Road Loco 733FE53A-F3FC-4C23-A469-0B7D189E2CC5_zpsq6ug0sru

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Post  Steve Traill on Mon 12 Aug 2019, 8:39 pm

I found the best water trap was the ones that fit on the bottom of the gun. They are easy to see if they are working & easy to dry out afterwards.
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Post  BurrellSimplicity on Fri 16 Aug 2019, 12:25 pm

Thanks Steve, I've change to using an air fed mask for spraying the 2K paint so I'm using a 3 stage filter now. while the carbon filter half mask was ok I had already bought the air fed mask a year or so ago so decided i'd better use it.

not had much time this week but hope to get the front axle in clear this weekend..

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