A while ago I posted here asking people for some info about wheels for a lathe steady. I have now built myself a new steady and thought I post some pictures here, so you can see how this all worked out. In case anybody is interested, I do have a technical drawing for this steady, and would be happy to share. Material cost in total is probably around £40: 20.00 for the wheels and bearings, approx. 10.00 for the plywood and oak and another 10.00 for various bits of hardware (bolts, washers, nuts).
The axles for the wheels are made from 12mm aluminium rod, but could probably be made from some hard wood, as they don't actually move.