I have a small NSWGR signal box meant for platforms on my Signals Branch Shapeways shop. The signal box is described as a 'Cheap Platform Signal Box'and one look at it and you can see why the NSWGR accountants must have loved it.
Links are here for those who may be interested.
I have several of these signal boxes and I chose a Shapeways Versatile Plastic version to use as the basis for a junction signal box for the coal mine branch near Wollar. Now, as this is a platform version I needed to build a supporting structure for it.
Once again, I turned to my computer and ran Sketchup to design a corrugated iron lower supporting section. As part of the build, I also designed a flat base for the signal box to sit on. Extra parts were designed as well, these being a platform and steps, bellcrank and signal wire wheels for the area between the signal box and the track. I already had a small water tank designed so this came into the build but I needed a different downpipe from the gutter to the water tank and a water tank tap as well.
The corrugated iron support structure and the base were printed in PLA on my filament printer and the other small parts listed above were printed on my resin DLP printer.
Here are a few photos of the finished signal box. Overall I am quite happy with it and it is now put in place at the junction with appropriate scenery materials blending it into the scene.