Dear all,  As I am trying to design a MIDI controlled mechanical
violin player I will use the bow wheels from the Mills Violano.
I already ordered some years ago from Ralph J. Schultz.

Now I am searching for the correct shaft end dimensions where the
bow wheels are mounted on.  I suppose it will be inch related sizes?
Can somebody tell me how these shaft ends must be defined for proper
mounting of the wheels?

Kind regards,
Jeroen Theelen - the Netherlands