Gantry problem world mode
12 Feb 2015 23:59 #55924
by horcsab
Gantry problem world mode was created by horcsab
Hi,
This is the first time I try to set the gantry mode on a machine (XYZX).
I cast a lot on the object related to these following errors, but I couldn't find any solution.
I have 2 major problems with the gantry machine:
1. In World mode I get the error ""joint 2 following error". This error also come up when I transcribe Ferror and Min_ferror for a high rate.
Until I move Z axis into either direction the Ferror rate continues to grow.
2. The machine takes the softer limits into account only once in World mode.
Is there any solution for these errors?
This is the first time I try to set the gantry mode on a machine (XYZX).
I cast a lot on the object related to these following errors, but I couldn't find any solution.
I have 2 major problems with the gantry machine:
1. In World mode I get the error ""joint 2 following error". This error also come up when I transcribe Ferror and Min_ferror for a high rate.
Until I move Z axis into either direction the Ferror rate continues to grow.
2. The machine takes the softer limits into account only once in World mode.
Is there any solution for these errors?
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13 Feb 2015 01:10 #55930
by andypugh
This problem can be caused by missing entries in the INI file [TRAJ] section:
Make sure you have DEFAULT_ACCELERATION which matches the axis values:
www.linuxcnc.org/docs/html/config/ini_co...tml#sub:TRAJ-section
Is this when running G-code or when jogging?
What version of LinuxCNC are you using?
I don't think anyone who knows much about this is on the forum, you may get more information from the mailing list.
Replied by andypugh on topic Gantry problem world mode
1. In World mode I get the error ""joint 2 following error".
This problem can be caused by missing entries in the INI file [TRAJ] section:
Make sure you have DEFAULT_ACCELERATION which matches the axis values:
www.linuxcnc.org/docs/html/config/ini_co...tml#sub:TRAJ-section
. The machine takes the softer limits into account only once in World mode.
Is this when running G-code or when jogging?
What version of LinuxCNC are you using?
I don't think anyone who knows much about this is on the forum, you may get more information from the mailing list.
Please Log in or Create an account to join the conversation.
13 Feb 2015 01:46 - 13 Feb 2015 01:47 #55933
by horcsab
Replied by horcsab on topic Gantry problem world mode
LinuxCNC version 2.6.5
Is this when running G-code or when jogging?
Jogging mode and only teleop mode.
The world mode no problem in Z axis speed.
The TRAJ section contains the DEFAULT_ACCELERATION
[TRAJ]
AXES = 4
COORDINATES = X Y Z X
LINEAR_UNITS = 1.0
ANGULAR_UNITS = 1.0
CYCLE_TIME = 0.010
DEFAULT_VELOCITY = 15.00
MAX_VELOCITY = 50.00
DEFAULT_ACCELERATION = 100
MAX_ACCELERATION = 150
[AXIS_2]
TYPE = LINEAR
HOME = 150.0
MAX_VELOCITY = 9
MAX_ACCELERATION = 80.0
STEPGEN_MAXACCEL = 100.0
SCALE = 533.333333
FERROR = 18.5
MIN_FERROR = 55.25
MIN_LIMIT = -1.02
MAX_LIMIT = 160.0
HOME_OFFSET = 150.0
HOME_SEARCH_VEL = 7.20000
HOME_LATCH_VEL = -3.520000
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 0
Is this when running G-code or when jogging?
Jogging mode and only teleop mode.
The world mode no problem in Z axis speed.
The TRAJ section contains the DEFAULT_ACCELERATION
[TRAJ]
AXES = 4
COORDINATES = X Y Z X
LINEAR_UNITS = 1.0
ANGULAR_UNITS = 1.0
CYCLE_TIME = 0.010
DEFAULT_VELOCITY = 15.00
MAX_VELOCITY = 50.00
DEFAULT_ACCELERATION = 100
MAX_ACCELERATION = 150
[AXIS_2]
TYPE = LINEAR
HOME = 150.0
MAX_VELOCITY = 9
MAX_ACCELERATION = 80.0
STEPGEN_MAXACCEL = 100.0
SCALE = 533.333333
FERROR = 18.5
MIN_FERROR = 55.25
MIN_LIMIT = -1.02
MAX_LIMIT = 160.0
HOME_OFFSET = 150.0
HOME_SEARCH_VEL = 7.20000
HOME_LATCH_VEL = -3.520000
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 0
Last edit: 13 Feb 2015 01:47 by horcsab.
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