My latest layout is Denton Brook - the back end of a cable making factory, with its own internal 2ft gauge railway, being served by standard gauge line and road transport.
Both empty and full cable drums are handled, and leave the factory on special little wagons with a curved weĺl. They are then trans-shipped onto standard gauge wagons via the working transfer crane, or onto lorries via the mobile crane.
The scenic part of the layout is 8' x 3', and can happily take up to four operators at an exhibition !
However, I found that we had some unacceptable stalling at the one exhibition we've done so far. As well as trying to sort it through conventional means, i also wanted to have one RC loco.
Another Bagnall was chosen, and I started building the body from an old Wrightlines kit. It was however designed to go on a RTF Pug chassis,and I needed to build an entirely new one.
The first step was to draw up the frames and coupling rods on CAD. I blew them up to twice size, and laser cut them out of 2mm MDF to form templates, which I glued to another sheet of MDF. I then milled out these, and subsequently all the chassis components out of nickel-silver (mostly 0.028") using my little Proxxon pantograph engraver which I have modified to light milling.
The chassis is entirely silver-soldered, which makes for a lively strong and stable assembly.
The battery is a 650mAh, which will fit in the boiler (just!) And the motor is a little 6v 5:1 gearmotor, with a 20:1 final drive, which gives me a very nice appropriate speed at 3.7v