our sherline cnc machine couldnot working homing conditions

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7 years 2 months ago #141177 by nishmal@nhanz.com
DEAR SIR

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OUR SHERLINE CNC MACHINE COULD NOT WORKING HOMING CONDITIONS.FIRST I SET PARAMETERS IN LINUX STEP CONFIGURATION
AFTER SET THE VALUES OF HOMING VALUES OF X AND YAXIS IN MANUL CODITION.AFTER THE RUN IN THE PROGRAM
ITS SHOW CANNOT ISSUE MDI COMMAND WHEN NOT HOMED ERROR
THEN HOW DID CORRECT THE ERROR

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7 years 2 months ago #141179 by tommylight
Home the Z axis.

Use lower case letters, switch off CAPSLOCK.

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7 years 2 months ago #141180 by nishmal@nhanz.com
Home the z axis after that each could not working homing condition

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7 years 2 months ago #141488 by verticalperformance
Does the machine have home and/or limit switches? Most Sherline setups do not, and the machine must be configured and homed accordingly.

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7 years 2 months ago #141612 by nishmal@nhanz.com
Hi
Thanks for the reply,
My home setting is as below in step config
X-axis Limit+home
y-axis Limit+home
Z-axis Limit+home
I have limit switches connected in series on both ends of X and Y axis and only on top side of Z axis . I am using TB6560 4 axis board.
With this setting on Launch , I am unable to automatic homing,
I am getting the following error
"joint 0 on limit switch error"
But I am able to jog.
If some bode here can sent me a working configuration file it would be very helpful.

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7 years 2 months ago #141614 by Clive S
Can you post the hal and ini files from the config folder

Also what version of Linucnc are you using

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7 years 2 months ago #141658 by nishmal@nhanz.com
Please find attached my hal and ini files.
We are using using LinuxCNC v2.7.14.

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7 years 2 months ago #141661 by Clive S
why do you have home = 10 in axis 0

[AXIS_0]
TYPE = LINEAR
HOME = 10.0 ## try 0
MAX_VELOCITY = 3.0
MAX_ACCELERATION = 3.0
STEPGEN_MAXACCEL = 3.75
SCALE = 200.0
FERROR = 1
MIN_FERROR = .25
MIN_LIMIT = 0.0 ### try -0.01
MAX_LIMIT = 200.0
HOME_OFFSET = 10.0

HOME_SEARCH_VEL = 1.500000 ##this is missing you might have to change the sign
HOME_LATCH_VEL = -1.250000 ##this is missing you might have to change the sign

HOME_SEQUENCE = 1 ## add this


[AXIS_1]
TYPE = LINEAR
HOME = -5.0 ## why is this -5
MAX_VELOCITY = 3.0
MAX_ACCELERATION = 3.0
STEPGEN_MAXACCEL = 3.75
SCALE = 400.0
FERROR = 1
MIN_FERROR = .25
MIN_LIMIT = -5.001 ### try -4.9
MAX_LIMIT = 200.0
HOME_OFFSET = 0.000000
HOME_SEARCH_VEL = 1.500000
HOME_LATCH_VEL = -1.250000

HOME_SEQUENCE = 2 ## add this

[AXIS_2]
TYPE = LINEAR
HOME = 0.0
MAX_VELOCITY = 3.0
MAX_ACCELERATION = 3.0
STEPGEN_MAXACCEL = 3.75
SCALE = 200.0
FERROR = 1
MIN_FERROR = .25
MIN_LIMIT = -100.0 ## try -.01
MAX_LIMIT = 0.001 ## try 100
HOME_OFFSET = 0.0

HOME_SEQUENCE = 0 ## add this

HOME_SEARCH_VEL = 1.500000 ##this is missing you might have to change the sign
HOME_LATCH_VEL = -1.250000 ##this is missing you might have to change the sign

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