Chilcott’s Creek bridge assembly – Part IV …
Recently I have continued work on the Chilcott’s Creek bridge scene.
Back in December 2014, I made a post where I had started to weather the bridge piers and abutments.
I was never really happy with how the colour on the abutments had turned out, so I decided to redo them.
Using some new oil based paints and some new techniques, I mixed up a new lighter colour of grey and applied to the abutments. I am happy so far with the result. The paint was stippled on and has given a rougher surface appearance. I’ll redo the rust stains as well. I think I will also redo the piers.
I also added the small extensions to the wingwalls.
The plan was always to build the bridge on a sub-assembly and then slot it into place. As the base of the sub-module needed to be near to perfectly flat, I decided to laminate a piece of 3-ply to another piece of hardwood. I roughly marked out the future riverbed and removed the first layer of ply using a router. My idea is to eventually try my hand at some model water.
I have also started on forming the scenery around the bridge. The idea is to form up the base scenery foam, add the dirts, grasses etc then assemble the bridge, fix the sub-assembly into the layout, levelling up as I go. Anyway, we’ll soon see if that plan works!!
The last photo shows the bridge & piers temporarily in place. You get the idea!!
Some months ago I started laying tieplates on the bridge and have fixed one rail in place. I had been thinking of ways to do it easily, including making a jig, but Andrew suggested I just line them up against a straight edge.
The frets of the tieplates were masked off where the base of the rail sits, painted with some Krylon flat brown paint, then dusted a ‘rusty’ colour with some powders.
The underside of the tieplates were then coated with Pliobond glue.
The individual tieplates were then cut out and located on the transoms, one at the end and the other about 40 transoms away. Using a soldering iron, the tieplates are bonded to the transoms. The heat activates the Pliobond. This then gave me two points to line the straight edge against. The straight edge was clamped to the bridge. More tieplates were then bonded to the transoms. The process was repeated along the bridge.
The next step was to fix one length of rail to this first run of tieplates. This was done by applying the Pliobond to the underside of the rail as well as the tops of the tieplates, then locating the rail in position and carefully applying heat to the top of the rail using an old clothes iron and gradually moving along the length of the bridge. The bond appears to be OK so far.
The plan is to then, using gauges, locate more tieplates underneath the second rail and repeat the above process.