On Tue, 9 Oct 2012, jim davis wrote:
I was looking up drive step rates earlier this week.
It seems that 1> mS is the top end for steppers.
That would limit the frequency to 1 KHz. maybe interleave the steps, additive synth?
A pile of old HD and you could get into the 1-50 KHz range?
put some rosin on the head