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D3721. Step 21.

Posted by Mick Bonwick , 13 August 2018 - - - - - - · 217 views

The oily locations need to be made oily. 
I have used AK Interactive Fresh Engine Oil through the airbrush to add the oily shine to appropriate areas - axle boxes, bodyside filters and chassis areas. The photograph shows the application while still wet - it will lose some of the shine by the time it dries. 


D3721. Step 20.

Posted by Mick Bonwick , 12 August 2018 - - - - - - · 227 views

I felt that more discolouration was needed around the bodyside filters and the axle box areas. More pigment has been applied to these areas to achieve this, and the same method used as before. 
MIG Productions pigments (shown in this blog) are now out of production, but the same colours are available from Abteilung 502 in the same shaped pots but wit...


D3721. Step 19.

Posted by Mick Bonwick , 12 August 2018 - - - - - - · 198 views

Pigments have been used to simulate the rusty surface of the exhaust silencer assembly. 
The technique is to pick up pigment particles from the lid of the pot rather than plunge the brush into the pot itself. This means that the finest particles are being used to apply to the subject. The brush used is a filbert, chosen for its soft but firm bristles...


D3721. Step 18.

Posted by Mick Bonwick , 10 August 2018 - - - - - - · 241 views

The main work has been done, and the airbrush can be set aside for a few steps. Weathering powders, or pigments as I tend to call them, come in a great variety of textures and colours. The ones that work best for me are from military modelling ranges and are exceedingly finely ground. This enables the particles to fall into the lower reaches of the m...


D3721. Step 17.

Posted by Mick Bonwick , 08 August 2018 - - - - - - · 283 views

The roof has been fixed. Not quite the same shade of dirt as the rest of the roof, but that is not a problem, because another layer will be applied at a later stage to tie it all together. 
This view of the other side shows up the effects of darkening areas affected by oily spillage (around axleboxes) and not controlling overspray to simulate dirt ac...


D3721. Step 16.

Posted by Mick Bonwick , 07 August 2018 - - - - - - · 303 views

If you ever handle thinners inside the spray booth, make sure that your latest project is not in there as well! 
Lack of control of Bonwick fingers have resulted in a large blob of thinners landing on the roof. To deal with this, the section of roof has been cleaned so that I can start again. 
I said at the beginning of this blog that there woul...


D3721. Step 15.

Posted by Mick Bonwick , 06 August 2018 - - - - - - · 282 views

The areas around the axle boxes are to be portrayed as oily and affected by accumulated gunge. The beginnings of this process incorporate a layer of Railmatch Weathered Black. This is applied thinly and from fairly close up, to control the area covered. Overspray onto the running plate is deliberately not avoided. In this photograph you should be able to...


D3721. Step 14.

Posted by Mick Bonwick , 05 August 2018 - - - - - - · 273 views

Holiday over and back to work. The airbrush has been loaded with a small quantity of AK Interactive Engine Oil in order to replicate the oily residue at the bottom of the filters. I have masked off the underframe while doing the filter area, just a piece of card laid against the running plate. Only a very small area has been thus affected on this par...


D3721. Step 13.

Posted by Mick Bonwick , 28 July 2018 - - - - - - · 282 views

Once all of the panel line wash has been applied and allowed to dry completely (24 hours), it's time to start airbrush work on the body. Using the same Railmatch frame dirt as before, but mixing it with a little Railmatch weathered black, a very light misting is applied to the whole locomotive. Side, ends, top and underparts. This is deliberately not perf...


D3721. Step 12.

Posted by Mick Bonwick , 26 July 2018 - - - - - - · 285 views

There is a great level of detail on the body of this model, and it will look even better if it can be highlighted in some way. This applies to pretty much all of the ready to run rolling stock available these days. 
My plan for this shunter is to use a panel line wash applied to all the crooks and nannies with a rigger brush. What's a rigger brush? I...


D3721. Step 11.

Posted by Mick Bonwick , 24 July 2018 - - - - - - · 318 views

The next step is to randomly remove some of the paint to portray a buildup of grime around things like coupling hook, bolt heads and pipe connectors. This is achieved by using a slightly damp brush, and by that I mean a couple of drops of thinner placed on the bristles rather than dipping the brush into the thinners. The brush is then used in a stabbing m...


D3721. Step 10.

Posted by Mick Bonwick , 23 July 2018 - - - - - - · 324 views

Buffer beams get very dirty, even on slow moving stock, so this needs to be portrayed on a model for it to look right. This build-up of grime is portrayed by several coats of (in this case) frame dirt, added a little at a time and manipulated before it gets too dry. These photographs show the first coat to be applied - just a thin application that barely...


D3721. Step 9.

Posted by Mick Bonwick , 22 July 2018 - - - - - - · 350 views

The locomotive has been removed from the cradle and further light coats of frame dirt applied. The next task is to spray from above the chassis components to cover areas inevitably missed while it was upside down - particularly the steps, axleboxes and sandboxes. There is some overspray, but that will all help to make the bodysides and running plate look...


D3721. Step 8.

Posted by Mick Bonwick , 18 July 2018 - - - - - - · 366 views

The frame dirt has now been airbrushed onto the frames as well, taking some care not to get overspray onto the body. This is not critical, but it helps to keep extra work to a minimum if I decide to spray the bodywork a significantly different shade of filth. With the locomotive upside down in the cradle, it is quite easy to ensure that the underneath of...


D3721. Step 7.

Posted by Mick Bonwick , 17 July 2018 - - - - - - · 340 views

Clean wheels. 
With the aforementioned battery applied to a pair of wheels, a cotton bud soaked in isopropyl alcohol has been applied to the wheel treads and the backs of the wheels. You should be able to see that all of the dried enamel paint has been completely removed from those surfaces that need to be clean for conducting electricity. Isopropyl...


D3721. Step 6.

Posted by Mick Bonwick , 16 July 2018 - - - - - - · 321 views

Round to the other side of the chassis now. Same process, but you can see where the last rotation of the wheel has yet to be sprayed. Still no masking, and the small spray area resulting from coming up close has kept the overspray off of most of the frames. Turning the wheels with the battery is still keeping the backs of the wheels clear because the wipi...


D3721. Step 5.

Posted by Mick Bonwick , 11 July 2018 - - - - - - · 359 views

The first few coats of paint have been applied. Each coat consists of a pass across the chassis to apply a very light coat of paint. This only results in a very slight discolouration of the wheels, or at least those parts of the wheels that show above the frames. The wheels are then turned a quarter of a turn using the battery and the exercise is repeated...


D3721. Step 4.

Posted by Mick Bonwick , 09 July 2018 - - - - - - · 357 views

Getting tools prepared. As already mentioned, the airbrush to be used is an Iwata HP SB Plus, with a 0.2mm nozzle for fine control when working close up. I'll be utilising this airbrush's ability to come in close and only cover small areas at a time. 
The glass dish contains clean white spirit, as does the plastic bottle to the left. The former is us...


D3721. Step 3.

Posted by Mick Bonwick , 07 July 2018 - - - - - - · 374 views

For this project I have chosen to use Railmatch Frame Dirt on the underparts. This is not my usual colour for working on underframes, but I had some available so thought I'd give it a go. The airbrush I am using in this case is an Iwata HP SB Plus, because it gives me a great deal of control over the area to be covered for each pass along the model. ...


D3721. Step 2.

Posted by Mick Bonwick , 05 July 2018 - - - - - - · 453 views

High-tech cradle in use to support upside down model while underparts are dirtied. The battery is used to turn the wheels during airbrushing, to avoid paintless shadows from the connecting rods and to get to those parts of the wheels hidden behind the frames. 

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