Can not get step settings that works OK
07 Jun 2020 18:12 #170509
by tecno
Can not get step settings that works OK was created by tecno
I have now been trying to get my numbers right for scale in INI
Trying with the help of pncconf but all I get is a rocket launcher
I have DM542A drivers images-na.ssl-images-amazon.com/images/I...dhyL._AC_SL1500_.jpg
25mm pitch leadscrews on X and Y
10mm pitch leadscrew on Z
Here my settings
Can somebody have a look at this so I can get adequate speed for my plasma.
Cheers
Bengt
Trying with the help of pncconf but all I get is a rocket launcher
I have DM542A drivers images-na.ssl-images-amazon.com/images/I...dhyL._AC_SL1500_.jpg
25mm pitch leadscrews on X and Y
10mm pitch leadscrew on Z
Here my settings
Can somebody have a look at this so I can get adequate speed for my plasma.
Cheers
Bengt
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07 Jun 2020 19:18 #170516
by tecno
Replied by tecno on topic Can not get step settings that works OK
There must be some errors in pncconf with scale calc.
Manual calc
4000steps 25mmpitch = Scale 160
4000steps 10mm pitch = 400
So now that works.
AXIS reports velocity of 6000 that seems a bit slow, how do I get higher speeds? What needs to be edited?
Manual calc
4000steps 25mmpitch = Scale 160
4000steps 10mm pitch = 400
So now that works.
AXIS reports velocity of 6000 that seems a bit slow, how do I get higher speeds? What needs to be edited?
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07 Jun 2020 19:34 - 07 Jun 2020 19:35 #170519
by tommylight
Replied by tommylight on topic Can not get step settings that works OK
In the ini file:
Display section, max velocity
Traj section, max velocity
For each axis and joint, max velocity.
-
Set it for each axis to what they need to be, for the traj and display section, add another 20 to 30% so when moving both axis at the same time it does not clip the velocity of each axis.
Display section, max velocity
Traj section, max velocity
For each axis and joint, max velocity.
-
Set it for each axis to what they need to be, for the traj and display section, add another 20 to 30% so when moving both axis at the same time it does not clip the velocity of each axis.
Last edit: 07 Jun 2020 19:35 by tommylight. Reason: typo
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07 Jun 2020 19:45 #170522
by tecno
Replied by tecno on topic Can not get step settings that works OK
[DISPLAY]
DISPLAY = axis
#DISPLAY = gmoccapy
POSITION_OFFSET = MACHINE
POSITION_FEEDBACK = COMMANDED
MAX_FEED_OVERRIDE = 1.2
CYCLE_TIME = 0.1
INTRO_GRAPHIC = emc2.gif
INTRO_TIME = 0
OPEN_FILE = ""
Nothing there on velocity!
DISPLAY = axis
#DISPLAY = gmoccapy
POSITION_OFFSET = MACHINE
POSITION_FEEDBACK = COMMANDED
MAX_FEED_OVERRIDE = 1.2
CYCLE_TIME = 0.1
INTRO_GRAPHIC = emc2.gif
INTRO_TIME = 0
OPEN_FILE = ""
Nothing there on velocity!
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07 Jun 2020 19:48 #170523
by tommylight
Replied by tommylight on topic Can not get step settings that works OK
That is OK, no worries, it does work without it.
As an example here is one of my ini files display section:
[DISPLAY]
DISPLAY = axis
POSITION_OFFSET = RELATIVE
POSITION_FEEDBACK = ACTUAL
MAX_FEED_OVERRIDE = 2.000000
MAX_SPINDLE_OVERRIDE = 1.000000
MIN_SPINDLE_OVERRIDE = 0.500000
INTRO_GRAPHIC = linuxcnc.gif
INTRO_TIME = 5
PROGRAM_PREFIX = /home/cnc/linuxcnc/nc_files
INCREMENTS = 5mm 1mm .5mm .1mm .05mm .01mm .005mm
POSITION_FEEDBACK = ACTUAL
DEFAULT_LINEAR_VELOCITY = 50.000000
MAX_LINEAR_VELOCITY = 800
MIN_LINEAR_VELOCITY = 0.500000
DEFAULT_ANGULAR_VELOCITY = 12.000000
MAX_ANGULAR_VELOCITY = 180.000000
MIN_ANGULAR_VELOCITY = 1.666667
EDITOR = gedit
GEOMETRY = xyz
As an example here is one of my ini files display section:
[DISPLAY]
DISPLAY = axis
POSITION_OFFSET = RELATIVE
POSITION_FEEDBACK = ACTUAL
MAX_FEED_OVERRIDE = 2.000000
MAX_SPINDLE_OVERRIDE = 1.000000
MIN_SPINDLE_OVERRIDE = 0.500000
INTRO_GRAPHIC = linuxcnc.gif
INTRO_TIME = 5
PROGRAM_PREFIX = /home/cnc/linuxcnc/nc_files
INCREMENTS = 5mm 1mm .5mm .1mm .05mm .01mm .005mm
POSITION_FEEDBACK = ACTUAL
DEFAULT_LINEAR_VELOCITY = 50.000000
MAX_LINEAR_VELOCITY = 800
MIN_LINEAR_VELOCITY = 0.500000
DEFAULT_ANGULAR_VELOCITY = 12.000000
MAX_ANGULAR_VELOCITY = 180.000000
MIN_ANGULAR_VELOCITY = 1.666667
EDITOR = gedit
GEOMETRY = xyz
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08 Jun 2020 06:39 #170584
by bbsr_5a
Replied by bbsr_5a on topic Can not get step settings that works OK
MAX_VELOCITY = 220.0
MAX_ACCELERATION = 1200.0
is a very good value to get the DM542T to speed
the Z on a plasma shout be
MAX_VELOCITY = 80.0
MAX_ACCELERATION = 800.0
MAX_ACCELERATION = 1200.0
is a very good value to get the DM542T to speed
the Z on a plasma shout be
MAX_VELOCITY = 80.0
MAX_ACCELERATION = 800.0
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08 Jun 2020 09:04 #170596
by tecno
Replied by tecno on topic Can not get step settings that works OK
Now I get following errors on all JOINTS
Is the RPi4 up to this task?
Is the RPi4 up to this task?
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08 Jun 2020 09:30 #170601
by bbsr_5a
Replied by bbsr_5a on topic Can not get step settings that works OK
REDUCE the ACC
MAX_ACCELERATION = 750.0
get down till you get no following then step up again
the DM542T is a Magic box
why dident you choose the DM556 REAL digital it can speed up 25times then the 542Original H
MAX_ACCELERATION = 750.0
get down till you get no following then step up again
the DM542T is a Magic box
why dident you choose the DM556 REAL digital it can speed up 25times then the 542Original H
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08 Jun 2020 09:46 #170603
by tommylight
Replied by tommylight on topic Can not get step settings that works OK
In joint sections:
stepgen stuff must be 25 to 50% more than max velocity and acceleration.
stepgen stuff must be 25 to 50% more than max velocity and acceleration.
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08 Jun 2020 10:26 #170614
by tecno
Replied by tecno on topic Can not get step settings that works OK
Even with following I still get following error on JOINT0
[AXIS_X]
MIN_LIMIT = -495
MAX_LIMIT = 0
MAX_VELOCITY = 100
MAX_ACCELERATION = 300
[AXIS_Y]
MIN_LIMIT = 0
MAX_LIMIT = -495
MAX_VELOCITY = 200
MAX_ACCELERATION = 1200
[AXIS_Z]
MIN_LIMIT = 0
MAX_LIMIT = -100
MAX_VELOCITY = 80
MAX_ACCELERATION = 800
[JOINT_0]
AXIS = X
MIN_LIMIT = -5000
MAX_LIMIT = 5000
MAX_VELOCITY = 100
MAX_ACCELERATION = 300
SCALE = -400
STEPGEN_MAX_VEL = 150
STEPGEN_MAX_ACC = 450
FERROR = 0.0051
MIN_FERROR = 0.0025
DIRSETUP = 20000
DIRHOLD = 20000
STEPLEN = 5000
STEPSPACE = 5000
DEADBAND = 0
P = 1000
I = 0
D = 0
FF0 = 0
FF1 = 1
FF2 = 0.00013
BIAS = 0
MAX_OUTPUT = 0
MAX_ERROR = 0.0127
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = YES
[AXIS_X]
MIN_LIMIT = -495
MAX_LIMIT = 0
MAX_VELOCITY = 100
MAX_ACCELERATION = 300
[AXIS_Y]
MIN_LIMIT = 0
MAX_LIMIT = -495
MAX_VELOCITY = 200
MAX_ACCELERATION = 1200
[AXIS_Z]
MIN_LIMIT = 0
MAX_LIMIT = -100
MAX_VELOCITY = 80
MAX_ACCELERATION = 800
[JOINT_0]
AXIS = X
MIN_LIMIT = -5000
MAX_LIMIT = 5000
MAX_VELOCITY = 100
MAX_ACCELERATION = 300
SCALE = -400
STEPGEN_MAX_VEL = 150
STEPGEN_MAX_ACC = 450
FERROR = 0.0051
MIN_FERROR = 0.0025
DIRSETUP = 20000
DIRHOLD = 20000
STEPLEN = 5000
STEPSPACE = 5000
DEADBAND = 0
P = 1000
I = 0
D = 0
FF0 = 0
FF1 = 1
FF2 = 0.00013
BIAS = 0
MAX_OUTPUT = 0
MAX_ERROR = 0.0127
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = YES
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