Spot on Good luck ...Clive
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Spot on Good luck ...Clive
You don't necessarily need to scale back the parts if you don't need to fit the part down the bore of the headstock.If not long lengths then you can fit them between centres(headstock and tailstock), use fixed and traveling steadies. You do have to keep in mind the swing of the lathe (centre height of chuck to the top of the bed). You could have a chuck with a 70mm bore if you have space to swing it but chances are you won't get a lathe with a headstock that can take 70mm. Not to fit in your workshop anyway.
Ant,
check your PM's