After seeing Love Lane at the Warley show last November and speaking to John Birch, who showed me the underside of the RT, I decided I would attempt something similar. Also I had Giles Favell's article in MRJ on how he did his road crane. I have a few RTs and a couple of Bedford OBs from the IXO range to put the steering axle on. My version is a combination of both these ideas.
I first obtained some 4mm square tube and 3mm square bar, and some roller bearings, othe items from stock I had in.
From the bar I turned stub axles to fit the roller bearings. The tube was cut to length for the main axle, and two sides were filed to allow the stub axles to move. These were then drilled for a pin to spin on. Two pieces of 4mm x 0.5mm bar were cut and filed to shape and soldere to the stub axles with a hole drilled in the other end for the linkage.
The pins for the swivel joint were soldered to the main axle and trimmed, the linkage was then inserted in to the arms on the stub axles.
The wheels were machined out for the bearings, which were then fixed in with Milliput.
A trial fit showed that it all worked.
The chassis of the bus was carved out for fitting the main axle.
Next to do is painting the to epoxy the wheels to the stub axles and the whole to the chassis.
The main parts
Axle assembled
Wheels loosely fitted on axles
Brian Malyon