Entry posted by Jon020
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P4 Deltic Conversion, Part 20… final stages and completion
Well, I didn’t really think that I’d get here, but thanks to the support I’ve received from a number of RMWebbers (listed) among others, I’ve finally finished my Nimbus. OK, so he’s going to have to come apart again once I get my rolling road so that the gears can get a good seeing to with plenty of lubrication... I think the gears are all a bit gungy and dried out... so running is a little rough inside, but the pickups are ok... and it all works!
I’d like to just formally sincerely thank the following, in no particular order:
Jamie, Jessie1692-James, James Hilton, 43179 Jon S, BCNPete M, Will, Peter, Sean, Simon, John, Pugsley, Ravenser, Matthew, EW Mike, Briz1234 ("The" Brian Hanson), and Andi –Cairnsroadworks... to name but a few. Thanks also must go to Rob Maynard and Martin Walker for allowing me to get some close access to RSG and Gordon.
Right, so here’s the final stages... weathering.
The body weathering was undertaken with the usual, and much talked about technique of applying a mix of sleeper grime and frame dirt with an airbrush to the body lower sides, and then removing this with a white spirit soaked cotton bud moved in vertical downward strokes, continuing to slowly build up the layers and then finished with a gentle dusting of the same colour, with a little “brake dust” mixed in to lighten the colour.
The buffers were given a coating of dirty black mixed with silver representing a dirty grease colour, swirled to represent how the grease would accumulate. Over this a light application of black was applied, and this was then subject to “contact” with a blunt object (I this case the top of a propelling pencil cap) to twist and remove the black “grime” to reveal the contacted grease underneath… which seemed to work
A little “thin” black was bled into the crevices formed at the sandbox covers’ edges… as well as within the cantrail grills (originals), and the nose intakes and engine intakes received a light application also… although their “louvered” construction did not necessarily need this, I was just adding a representation of the collected grime.
The chassis and bogies received a light dusting of the sleeper grime and frame dirt with an airbrush and these were also streaked with the white spirit soaked cotton buds. The bogies were treated separately to gentle application of weathering powders (Tamiya), applying the light rust colours into the bogie nooks and crannies, lightly dusting with a light brushing … and then blending a bit more with a light dusting of a thinners moistened brush to blend the powders in. I managed to forget to grab any photos of these stages… but suffice to say, that these, add to the general texture of the underside frames to compliment the (still separate) body.
A light dusting of roof dirt was applied along the centre sections of the roof starting from the engine exhaust ports; on the cab roofs, this was wiped away using the same downward strokes with the soaked cotton bud as before, leaving the central “dirty” area along the centre line – where the cleaners wouldn’t normally reach. This was also over sprayed onto the bonnet tops – where the exhaust would naturally drift to. Dirty black was added to the exhaust ports, with light drifting away from each in both directions. Light spraying of dirty black followed by Tamiya black weathering powders and some dry brushing was used to represent the oil staining running down the bodyside from each exhaust port.
Prior to body mating, and final checks, the cabs were checked and fettled,
SWD DCC Sound chip added, and wiring soldered to the already installed 8ohm bass reflex speaker in the fuel tanks… please excuse the tape used to secure te wiring... I’ve tidied that up since (honest).
Upon reassembly, there were some mating issues and I couldn’t get the body to sit down at all… finally I found the culprit... in this trapped wire that would sit within the recess for the body screws. Once tidied, the body was mated to the chassis.
The subsequently apparent slight discrepancy in colour between the chassis and body was dealt with a subtle application of the aforementioned lighter colour (brake dust, sleeper grime frame dirt mix) to both the chassis, bogies and lower edges of the body… leaving a light dusting along the lower edges, including the tumblehome, and fuel tanks and bogies… Prior to undertaking this “spraying”, in order to protect the wheels, and electric pickup surfaces, a mask was made to slot into the bogies, covering the wheels… template shown here… masks shown here fitted… and removed afterwards.
Finally, the bogies were treated to a light infilling with thinned black paint to the bogie spring recesses, around the brake callipers and to represent oil stains on the axle cover bolts and brake cylinders. On the body, light application of the same thin black was applied running down from the nose intake grills per prototypical photographs… referred to in all cases.
The overall result is, in my opinion, quite pleasing… and I think that it’s been worth the effort. I hope that some of you agree… and will consider giving it a go yourself. As a novice, I’ve achieved this, and learnt a lot in the process… just imagine what someone with some skill could achieve.
So, there we are... and end to this project. Thanks for reading
Jon
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