Half-stepping isn't quite microstepping...
Posted by
Mark
on 2006-05-02 16:14:24 UTC
For years, I used L297/298 chopper drives in half-step mode,
and had quirky resonance problems with my EMCO CNC5, my Shreline
mill and more recently, my Light Machines 500-lb mill. By
fiddling with acceleration and current, speeds would usually
pass through the resonant range without problems, but there
were always cutting speeds/angles that landed one axis or the
other smack-dab in the problem area.
I grant you, half-stepping is vastly better than full-stepping,
but 1/8 and 1/10 microstepping have solved ALL my lost step
problems, have increased rapid max speeds, and have quieted down
operation significantly. Thanks to Xylotex, thanks to Geckodrive,
and thanks to Tom at THSEngineering, for providing microstepping
drivers that have solved my problems. Long live steppers! /mark
in BC
and had quirky resonance problems with my EMCO CNC5, my Shreline
mill and more recently, my Light Machines 500-lb mill. By
fiddling with acceleration and current, speeds would usually
pass through the resonant range without problems, but there
were always cutting speeds/angles that landed one axis or the
other smack-dab in the problem area.
I grant you, half-stepping is vastly better than full-stepping,
but 1/8 and 1/10 microstepping have solved ALL my lost step
problems, have increased rapid max speeds, and have quieted down
operation significantly. Thanks to Xylotex, thanks to Geckodrive,
and thanks to Tom at THSEngineering, for providing microstepping
drivers that have solved my problems. Long live steppers! /mark
in BC