Bob Allison
Giles,
I have a feeling that 3D printing is the future of wheel production, so I hope you’ll keep us posted with progress. Solid ballast weights of the right thickness and profile for individual locos, flexibility to match existing axles, perhaps grooves moulded into the hub and the back of spokes to facilitate split chassis construction, the list of benefits goes on.
Just out of curiosity, how do you plan to fix the tyres to the hubs to ensure concentricity?
Bob