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

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

/Mikie

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

http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?action=browse&diff=3&id=Following_Error

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

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

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