With the front bogie complete and fitted with a coupling my attention turned to the rear of the model and fitting a coupling to it. On drawings and on photos I could see what I believe is a vacuum cylinder mounted at the rear of the locomotive, so I managed to scratch build this from plastic rod and bits of brass strip and 0.8mm brass rod. The rod will go up from the brass strips which go around the cylinder to 2x holes drilled in the chassis. The middle section was lowered / filed down by 1.5mm to fit the coupling and to be at the correct height.
A couple of items missing from the rear are the guard irons, I have taken the decision not to put them on the front as there isn't enough room to put them in front of the bogie or even attached to the bogie. So I will be only putting them on the rear. The guard irons are fitted / mounted to the buffer beam, I have used some brass strip for these with the top section bent at 90 degree angle, 2x, 0.5mm holes were drilled to insert 2x brass rivets which were soldered in place, with the rivet still poking out the rear. 2X holes were drilled in the buffer beam for the mounting points for the guards, and the guards were then glued in place ready for painting.
(Left: Buffer beam guard iron, Right: Guard irons fitted to the rear buffer beam, ready for painting)
The buffer beam still requires some yellow + black lining similar to Maunsell coach lining around the outside of the beam, using fox transfers lining, again time consuming but will look good and will be worth it at the end. Other small items made before lining was the pipe work and whistle in front of the cab. Using some copper wire, a small handrail knob, and an old turned Tri-ang whistle to make up the assembly in front of the cab, 2x small holes were drilled in the V of the boiler casting and tanks to take the copper wire, the wire was soldered to the handrail knob, and old Tri-ang whistle was turned in a drill to try and get close to what is on the real thing, it was then soldered on to the top of the handrail knob, and then fitted.
(Left: Whistle and pipe work fitted, Right: Lining added to buffer beams front and rear)
More items added to the buffer beams were the now painted W&T vacuum pipes, these fit very tightly over the beam and only require a tiny amount of glue to stay attached. Also added was some lamp irons, now this loco has some slightly different ones so I had to settle with what I had available to me or looked similar, I found some on a Mainly Trains (MT187) etch for lamp irons
(Left :MT187 Lamp irons, GWR Parallel irons were used. Right: Glued in place on the rear, and one on top of the smoke-box)
Last Edit: Apr 24, 2016 23:42:44 GMT by bluebell87
Another small addition again all detail is the numbers mounted to the chimney, now they may not be 100% correct or accurate but they will do, using some etched numbers which I usually use for SECR locos purchased from Roxey mouldings some time ago, were added to the chimney with a small amount of super glue gel applied using a cocktail stick, and look the part.
(Left: 7 inch SECR etched numbers from Roxey. Right: Numbers fitted to the Chimney)
Next came a bit more pipe work, using the copper wire 0.6mm diameter, to make the pipe running from the underside of the tank bending round and then under the running plate / motion bracket. 4x holes were drilled 2x on the underside of the tank one on each side and 2x on the underside of the motion bracket and glued in place.
(Left: Copper wire bent to shape, 0.6mm drill bit. Right: Copper wire fitted to the model)
A few more items to go on, but that's after varnish, the model was spray with an Acrylic resin Satin varnish once fully dry the smoke-box was then brushed over with Matt Black (33) just to take the shine off the surface. The small items to be added to the buffer beam, screw link couplings and the 2 additional chains either side of the main coupling which attach to the cotter/split pins which were featured earlier on. The chains purchased from a well known auction site, 2mm fine chain blackened mainly used for jewellery like the copper wire.
(Additional chains added either side of the screw link coupling)
I took some time to review the chassis, although running, it still wasn’t running that well, the chassis was set up with a jig to ensure it was square, straight and level, and checked on a flat surface like mirror glass for example. Yet I still had some issue with the chassis being straight, either a mounting position was out, or an axle hole was out of position. No matter what I tried it still wasn’t right, despite improving it slightly the chassis was still rocking, with only 3 wheel flanges touching the surface. I took the decision to bin the chassis... fortunately thanks to a member on RMweb, pointed me in the direction of Alan Gibson workshop, who produce milled chassis frames, they do a Metropolitan A-Class but it’s not known if it will fit an old K’s kit, spacers, frames, and connecting rods were ordered late March. The frames and spacers arrived a week or so later, and after a few checks and measurements the Alan Gibson frames would fit with some adjustments and shortening as the frames spanned the full length of the loco. Some parts I made for the original chassis were transplanted on to the new chassis which went quite well. The new chassis is square level and runs beautifully, in addition to the new chassis I also purchased some new connection rods from Alan Gibson to replace the rather thick and had it etched rods from the K's Kit.
There is a video on the building of the chassis which is available on my Workbench playlist on YouTube helping to pass on skills to new modellers:
(Alan Gibson's chassis taking shape, to replace the K's original which had problems, possibly incorrect position of chassis screw fixings)
This is part is really just a bit of fun really, I wanted to make some destination boards which were fitted in to slots on the front buffer beam, and the rear of the bunker. I managed to get hold of a document which had the destinations written in the correct Font which correct backing colour, these were then put on to a photo editing software to adjust the size to fit the brass plates. These destinations were printed out on to transfer paper, and fitted to the brass.
(Destination boards being produced for the A-Class held in brackets on the buffer beam and bunker)
So with all the work on the chassis now complete and running nicely, and all the details done for this model, there is only one thing to do. Fit a crew add a bit of coal, and couple it up to some coaches. But before then I had an item arrive for it which I completely forgot about, ordered from Narrow Planet a pair of builders plates which are on either side of the bunker, just painted black which no highlights on the lettering.