Hi Bill
How are you?
Yes, I built the steering more or less as per the manual. with a swing axle and nuts and bolts for the links. No ball joints. No additional bracing to the swing axle.
I actually made a small error in the build that causes the wheel to foul the wing on full swing and full lock. To overcome this I have fitted steering stops, and this has caused me another minor problem.
If I had followed the manual exactly, I would not have these slight problems, so I think that if you follow Richards instructions you will have a successful result. Getting a happy medium, without strain on the linkage at the extremities of the swing and lock is the only real problem, and takes a little time to get right.
Although I am interested in the modifications and improvements to the steering, any changes I make will really be for my own enjoyment in doing the engineering! I don't feel that the huge amount of work, and the headaches, is really justified by the the improvements as the young users don't see anything wrong with it! (The twitchy steering is only a direct link, just like a pedal cycle anyway.) It seems to be quite successful, so I have no real intention of changing it at present.
The way I see it, if you want a reasonably quick solution that works......follow the manual............on the other hand........if you want a project, and enjoy the challenge..........well go your own way and enjoy the project!
Best Wishes
Walter