re:microstepping speed?

Terry A wrote:
<snip>I have been lead to believe that the speed of the computer

>controls the maximum speed a stepper can reach? So if I used
>microstepping the stepper will run slower unless I upgrade my
>computer because more pulses are required? I use a dos g code
>interpreter and an old 386!

Terry,

in the absence of external hardware (which could be an 'internal'
card!?!) you are correct. The computer speed will place a limit on
how fast steps can be output at the p port. Different controller
programs will have differing 'top speeds' on a given computer (some
programmers are more efficient than others :-) ).

Dancam/Danplot had a "multiplier" built into the program for use with
servos. It "spit out" multiple pulses per 'step' to deal with "empty"
resolution. I didn't use that feature, but thought it may be good for
you to know about it.

Which interpreter program are you using?

Hope this helps.

Ballendo

P.S. And of course, this IS precisely the issue the gecko pulse
multiplying drives are designed to fix. (1 pulse in , 10 pulses out)