CW5945 MicroStepping Strangeness?

[Tenson]

I tired back to front and upside down.. it still doesn't do as expected.

I guess I just need to try lots of configurations until I find one that works right. What I thought should be 1/5th was actually 1/2 stepping.

What is the point of imperial and metric microstepping? Surely it doesn't really make any difference since the ballnut can position at any point on the ballscrew?

[Jonathan]

Interestingly page 8 of this document says that the last 4 switches should be OFF,OFF,ON,ON to get 1/10, but the opposite is written on the driver (ON,ON,OFF,OFF). That would imply that you read '1' on the driver as meaning 'ON', so to get 1/5 try setting the last 4 switches to ON,OFF,OFF,OFF.

What is the point of imperial and metric microstepping? Surely it doesn't really make any difference since the ballnut can position at any point on the ballscrew?

Just to give you more options I suppose. If you're using the driver in some other system where software doesn't work out the number of steps for you it may be convenient to, for instance, have 1/5 as 1000 step/rev is an easy number to work with.