Simple wagon wheels to G1MRA Fine and Standard profiles
The bore is sized for 2.9mm for reaming 3mm or 1/8" as appropriate. I have used this with success on 3mm ground steel axles into 3x8x3mm ball-race bearings.
I have included a 40mm B2B Gauge, a 42mm B2B is available on the G1MRA 75th Anniversary Brake Van model.
The attached picture shows a filament and resin print of the wheels. Any thoughts or feedback greatly appreciated.