homing problem in gantry mode
25 Oct 2020 12:44 #187187
by jasen
homing problem in gantry mode was created by jasen
Hi , I have the folowing peoblem , the machine is gantry with 2 motors on Y axis. At startup when you go to homing procedure you can select independant axis or homing sequence ( not yet in joints)
The problem is that if in this moment you select to hoe Y axis (the gantry one) only one of the motors starts as is not in joint mode yet.The result is brocken machine. Haw to solve it. ?
The problem is that if in this moment you select to hoe Y axis (the gantry one) only one of the motors starts as is not in joint mode yet.The result is brocken machine. Haw to solve it. ?
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25 Oct 2020 14:48 - 25 Oct 2020 14:49 #187194
by newbynobi
Replied by newbynobi on topic homing problem in gantry mode
Wrong homing sequence in your INI File?
Do both Y Joints have a negative value of the homing sequence? like so?
Norbert
Do both Y Joints have a negative value of the homing sequence? like so?
[AXIS_Y]
MAX_VELOCITY = 80
MAX_ACCELERATION = 200
MIN_LIMIT = 0
MAX_LIMIT = 2000
[JOINT_1]
TYPE = LINEAR
MAX_VELOCITY = 200
MAX_ACCELERATION = 1000
MIN_LIMIT = 0
MAX_LIMIT = 2000
HOME = 0.0
HOME_OFFSET = 0.0
HOME_SEARCH_VEL = 0
HOME_LATCH_VEL = 0
HOME_SEQUENCE = -2
[JOINT_2]
TYPE = LINEAR
MAX_VELOCITY = 200
MAX_ACCELERATION = 1000
MIN_LIMIT = 0
MAX_LIMIT = 2000
HOME = 0.0
HOME_OFFSET = 0.0
HOME_SEARCH_VEL = 0
HOME_LATCH_VEL = 0
HOME_SEQUENCE = -2Norbert
Last edit: 25 Oct 2020 14:49 by newbynobi.
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25 Oct 2020 16:54 #187205
by jasen
Replied by jasen on topic homing problem in gantry mode
nope , in sequence homing everiting is ok , it happend only when you try to home only the gantry axis , in my case is Y. when you push the home all , it works ok.
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25 Oct 2020 17:29 #187206
by Clive S
I think that is normal with gantry homing
Replied by Clive S on topic homing problem in gantry mode
nope , in sequence homing everiting is ok , it happend only when you try to home only the gantry axis , in my case is Y. when you push the home all , it works ok.
I think that is normal with gantry homing
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25 Oct 2020 21:26 #187224
by rodw
Replied by rodw on topic homing problem in gantry mode
In you ini file
change to
This removes the ability to jog in world mode so you have to home all before doing anything.
KINEMATICS = trivkins coordinates=XYYZ kinstype=BOTHchange to
KINEMATICS = trivkins coordinates=XYYZThis removes the ability to jog in world mode so you have to home all before doing anything.
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26 Oct 2020 06:21 #187278
by newbynobi
Replied by newbynobi on topic homing problem in gantry mode
@jasen,
So does your INI file have a negative homing sequence for your Y axis? If so, pushing the home Y button should home both y joints.
This does not have anything to do with the home all behavior, as this will home all joints at once!
Post your relevant part of your INI File.
Norbert
So does your INI file have a negative homing sequence for your Y axis? If so, pushing the home Y button should home both y joints.
This does not have anything to do with the home all behavior, as this will home all joints at once!
Post your relevant part of your INI File.
Norbert
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26 Oct 2020 17:51 #187327
by jasen
Replied by jasen on topic homing problem in gantry mode
Hi Norbert , yea , the issue was the negative home sequence , didnt see that. now is ok. But I have another question for the spindle scale. it works exact with the g-code commands , but the bar is not ok. before homing it works different than after. the spindle is standart 24000 rpm controled with 10v analog
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