I have this Sankyo 5-pin stepper. I do not remember whether I took it from a large hard drive or a printer. But it is time to find a job for this handsome rotator.
But first I must identify the pins. Web search did not give much except one guy who posted it for sale on almost every website you can imagine.
the resistance measurement matrix is shown below together with my interpretation of how the coils are arranged inside.
I plan to first try to rotate it by feeding a ULN2003 driver IC from a CD4017 counter and wish me luck.
If anyone has any comment or correction, I will be thankful.