N Gauge Wheels

[NTrain]

I am trying to finalise a motorising solution. I can do a single ended drive using a set of bogies which have 6.5mm wheels. Ufortunately, the standard wheels I seem to be able to find, for the unpowered end and other coaches are 6.2mm.

The motorised chassis is looking nose down.

Any sugestions as to a supplier of 6.5mm wheelsets or another solution.

[4x2]

I am trying to finalise a motorising solution. I can do a single ended drive using a set of bogies which have 6.5mm wheels. Ufortunately, the standard wheels I seem to be able to find, for the unpowered end and other coaches are 6.2mm.

The motorised chassis is looking nose down.

Any sugestions as to a supplier of 6.5mm wheelsets or another solution.

Try looking at some of the European axles, they often have strange size wheels. Another idea would be to pack up the smaller wheeled bogie so that it all sits level - 0.3mm is such a small difference it should be barely noticeable. I'm assuming the bogies have frames which could hide the smaller wheels.

[woodbury22uk]

Going up 0.3mm on diameter will only change the height by 0.15mm. Might be worth putting shims under the wheel to establish what change in radius you need to get it to look like it is level. It surprises me that 0.15mm over the distance between axle centres is noticeable.

[EtchedPixels]

Going up 0.3mm on diameter will only change the height by 0.15mm. Might be worth putting shims under the wheel to establish what change in radius you need to get it to look like it is level. It surprises me that 0.15mm over the distance between axle centres is noticeable.

Your eyes are very good at picking such things up. If the floor is level I doubt anyone would notice 0.15mm in wheel diameter difference for the wheels.

Surely the question though is what diameter the wheels *should* be for the model - it might make sense to find replacement drive axles instead.

Alan

[4x2]

Just to clarify, I meant 0.3mm as the difference in wheel size not the height to be raised.
I think Alan's suggestion is probably the most useful one.

[NTrain]

While I would love to make the whole thing up, exactly to scale, I am constrained by compromise.

One of those is cost. I am using, where possible, existing components, or ones that I can get 3D printed. This means that the drive bogie I am using is a fixed component, with a 3D printed base. Unfortunately, the wheels of a correct size have a different fixing hole to the bogie, so are not intechangeable. Nor can I take the gear from the driving wheels and put onto the axle of a different wheelset. The design is wrong.

As for seeing the difference in height, I used to do engineering and building drawing as a living, many years ago and still retain a critical eye for these things. It drives my wife crazy at times.