error when running g code

[craig]

Hi
I loaded the g code in axi sim and it ran fine but when i run the code for real in steppers it gives me this error (Jont 1 following error) does anyone know what this is and how to fix it

TIA
Craig

[mikie]

Is the post processor file that you used to comile the g-code compatible with your machine?

/Mikie

[craig]

I dont know Iam using mastercam and no one is telling me what post to use in mastercam but is does work in axis sim

thanks
Craig

[lwill]

http://wiki.linuxcnc.org/cgi-bin/emc...ollowing_Error

[craig]

The ini file is set to .050 following and min following is set to 0.010 should this be set higher also thanks for the link

[juzwuz]

Craig,

Did you fix your problem? I had the same error when I was trying to jog an axis too fast. I eventually decreased my Base Period parameter so that the computer could output more steps per second and then I could get my axis travel rate to what I wanted (30 ipm).

Justin

[samco]

Make sure you have velocity and accelleration headroom in stepgen also.

This is from the stepper_inch.ini

MAX_VELOCITY = 1.2
# NOTE: the step generator module applies its own limits to
# acceleration and velocity. We have discovered that it needs
# to have a little "headroom" over the accel by the trajectory
# planner, otherwise it can fall slightly behind during accel
# and later overshoot as it catches up. In the long term we
# hope to come up with a clean fix for this problem. In the
# meantime, please set STEPGEN_MAXACCEL below to a few percent
# higher than the regular acceleration limit MAX_ACCELERATION
MAX_ACCELERATION = 20.0
STEPGEN_MAXVEL = 1.4
STEPGEN_MAXACCEL = 21.0