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SmoothStepper USB / Strange behavior
« on: September 15, 2008, 03:48:01 PM »
Hello everyone,
Changed my system from G100 to smoothstepper. Old system was working ok except for known issues with the G100 networking.
Installation of the smoothstepper has been "smooth" and it looks very reliable.
I'm struggling with some strange behavior:
Axis move correctly in both directions when the movements are one axis at a time, both jogging and from gcode.
X, Y axis move ok simultaneously in all directions, except when they both run in the positive direction, in that case, motors make awful noise and
loose steps (lots of them). No matter what setting I use in the plugin config panel, behavior is consistent, everything moves fine, except
when x,y go in the positive direction. Any help will be really welcome.
Mach version is R3.041
Smooth stepper firmware Beta2 013c
Drives are geckos 203v
No breakout board as drives inputs are optoisolated, cable is shielded and nothing else is connected to the smooth stepper I/Os.
I've read somewhere that pulse width setting in motor tuning panel is not used by SS, but I have not found if there is any other
place it can be modified.
I have a two smoothsteppers and both do the same thing. I have swapped the Gecko drives, still same thing. Alternate grounding scheme,
same thing.
First I thougt about noise, but individual and simultaneos moves are ok, except the said combination.
Now I'm guessing about some math or overflow error somewhere...
Thank you
jose
Changed my system from G100 to smoothstepper. Old system was working ok except for known issues with the G100 networking.
Installation of the smoothstepper has been "smooth" and it looks very reliable.
I'm struggling with some strange behavior:
Axis move correctly in both directions when the movements are one axis at a time, both jogging and from gcode.
X, Y axis move ok simultaneously in all directions, except when they both run in the positive direction, in that case, motors make awful noise and
loose steps (lots of them). No matter what setting I use in the plugin config panel, behavior is consistent, everything moves fine, except
when x,y go in the positive direction. Any help will be really welcome.
Mach version is R3.041
Smooth stepper firmware Beta2 013c
Drives are geckos 203v
No breakout board as drives inputs are optoisolated, cable is shielded and nothing else is connected to the smooth stepper I/Os.
I've read somewhere that pulse width setting in motor tuning panel is not used by SS, but I have not found if there is any other
place it can be modified.
I have a two smoothsteppers and both do the same thing. I have swapped the Gecko drives, still same thing. Alternate grounding scheme,
same thing.
First I thougt about noise, but individual and simultaneos moves are ok, except the said combination.
Now I'm guessing about some math or overflow error somewhere...
Thank you
jose