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Using a servo as a spindle and positional axis - keep getting vague errors
1 year 6 months ago #325564
by ffffrf
Hello,
I have a little lathe that was originally using a bldc motor. I wanted to change it out with a servo motor and use it both in positional mode, but also with turning. I went through the basic configurations in pncconf using my mesa 7i96s and got it to work as a turning machine with a stepgen spindle.
I read about the possibility of using mux2 to switch between the two modes but I am stuck getting strange errors like command 176, etc. I cant figure out how to debug or what I need to change in my INI and HAL (I have two hal files I am using). I am wondering if someone could look over my files and see if I am missing something obvious? I keep staring at it and am getting nowhere...
I config'd it as an XZ lathe with stepgen spindle originally. I have to HAL files I use: C+turning and the mux HAL
My current issue is as follows: The program compiles and opens. I then home axis, which causes my X and Z axis to home. I can now move those freely. However, when I go to try and move the C axis, I get "error on joint 2" and on terminal it just gives all sorts of "command" errors that I cant seem to debug further. Has anyone experienced this?
Main HAL:
Auxillary HAL
INI FILE
I have a little lathe that was originally using a bldc motor. I wanted to change it out with a servo motor and use it both in positional mode, but also with turning. I went through the basic configurations in pncconf using my mesa 7i96s and got it to work as a turning machine with a stepgen spindle.
I read about the possibility of using mux2 to switch between the two modes but I am stuck getting strange errors like command 176, etc. I cant figure out how to debug or what I need to change in my INI and HAL (I have two hal files I am using). I am wondering if someone could look over my files and see if I am missing something obvious? I keep staring at it and am getting nowhere...
I config'd it as an XZ lathe with stepgen spindle originally. I have to HAL files I use: C+turning and the mux HAL
My current issue is as follows: The program compiles and opens. I then home axis, which causes my X and Z axis to home. I can now move those freely. However, when I go to try and move the C axis, I get "error on joint 2" and on terminal it just gives all sorts of "command" errors that I cant seem to debug further. Has anyone experienced this?
Main HAL:
Code:
# Generated by PNCconf at Wed Apr 2 16:24:00 2025
# Using LinuxCNC version: Master (2.9)
# If you make changes to this file, they will be
# overwritten when you run PNCconf again
loadrt [KINS]KINEMATICS
loadrt [EMCMOT]EMCMOT servo_period_nsec=[EMCMOT]SERVO_PERIOD num_joints=[KINS]JOINTS
loadrt hostmot2
loadrt hm2_eth board_ip="10.10.10.10" config="num_encoders=1 num_pwmgens=1 num_stepgens=5 sserial_port_0=0xxxxxxx"
setp hm2_7i96s.0.pwmgen.pwm_frequency 20000
setp hm2_7i96s.0.pwmgen.pdm_frequency 6000000
setp hm2_7i96s.0.watchdog.timeout_ns 5000000
loadrt pid names=pid.x,pid.z,pid.s,pid.c
loadrt near
addf hm2_7i96s.0.read servo-thread
addf motion-command-handler servo-thread
addf motion-controller servo-thread
addf pid.x.do-pid-calcs servo-thread
addf pid.z.do-pid-calcs servo-thread
addf pid.s.do-pid-calcs servo-thread
addf pid.c.do-pid-calcs servo-thread
addf near.0 servo-thread
addf hm2_7i96s.0.write servo-thread
setp hm2_7i96s.0.dpll.01.timer-us -50
setp hm2_7i96s.0.stepgen.timer-number 1
# external output signals
# --- X-ENABLE ---
net x-enable => hm2_7i96s.0.ssr.00.out-00
# --- Z-ENABLE ---
net z-enable => hm2_7i96s.0.ssr.00.out-01
# external input signals
# --- MIN-HOME-X ---
net min-home-x <= hm2_7i96s.0.inm.00.input-00-not
# --- MAX-HOME-Z ---
net max-home-z <= hm2_7i96s.0.inm.00.input-01-not
# --- ESTOP-EXT ---
net estop-ext <= hm2_7i96s.0.inm.00.input-02
#*******************
# AXIS X JOINT 0
#*******************
setp pid.x.Pgain [JOINT_0]P
setp pid.x.Igain [JOINT_0]I
setp pid.x.Dgain [JOINT_0]D
setp pid.x.bias [JOINT_0]BIAS
setp pid.x.FF0 [JOINT_0]FF0
setp pid.x.FF1 [JOINT_0]FF1
setp pid.x.FF2 [JOINT_0]FF2
setp pid.x.deadband [JOINT_0]DEADBAND
setp pid.x.maxoutput [JOINT_0]MAX_OUTPUT
setp pid.x.error-previous-target true
# This setting is to limit bogus stepgen
# velocity corrections caused by position
# feedback sample time jitter.
setp pid.x.maxerror 0.012700
net x-index-enable => pid.x.index-enable
net x-enable => pid.x.enable
net x-pos-cmd => pid.x.command
net x-pos-fb => pid.x.feedback
net x-output <= pid.x.output
# Step Gen signals/setup
setp hm2_7i96s.0.stepgen.00.dirsetup [JOINT_0]DIRSETUP
setp hm2_7i96s.0.stepgen.00.dirhold [JOINT_0]DIRHOLD
setp hm2_7i96s.0.stepgen.00.steplen [JOINT_0]STEPLEN
setp hm2_7i96s.0.stepgen.00.stepspace [JOINT_0]STEPSPACE
setp hm2_7i96s.0.stepgen.00.position-scale [JOINT_0]STEP_SCALE
setp hm2_7i96s.0.stepgen.00.step_type 0
setp hm2_7i96s.0.stepgen.00.control-type 1
setp hm2_7i96s.0.stepgen.00.maxaccel [JOINT_0]STEPGEN_MAXACCEL
setp hm2_7i96s.0.stepgen.00.maxvel [JOINT_0]STEPGEN_MAXVEL
setp hm2_7i96s.0.stepgen.00.step.invert_output true
# ---closedloop stepper signals---
net x-pos-cmd <= joint.0.motor-pos-cmd
net x-vel-cmd <= joint.0.vel-cmd
net x-output => hm2_7i96s.0.stepgen.00.velocity-cmd
net x-pos-fb <= hm2_7i96s.0.stepgen.00.position-fb
net x-pos-fb => joint.0.motor-pos-fb
net x-enable <= joint.0.amp-enable-out
net x-enable => hm2_7i96s.0.stepgen.00.enable
# ---setup home / limit switch signals---
net min-home-x => joint.0.home-sw-in
net min-home-x => joint.0.neg-lim-sw-in
net x-pos-limit => joint.0.pos-lim-sw-in
#*******************
# AXIS Z JOINT 1
#*******************
setp pid.z.Pgain [JOINT_1]P
setp pid.z.Igain [JOINT_1]I
setp pid.z.Dgain [JOINT_1]D
setp pid.z.bias [JOINT_1]BIAS
setp pid.z.FF0 [JOINT_1]FF0
setp pid.z.FF1 [JOINT_1]FF1
setp pid.z.FF2 [JOINT_1]FF2
setp pid.z.deadband [JOINT_1]DEADBAND
setp pid.z.maxoutput [JOINT_1]MAX_OUTPUT
setp pid.z.error-previous-target true
# This setting is to limit bogus stepgen
# velocity corrections caused by position
# feedback sample time jitter.
setp pid.z.maxerror 0.012700
net z-index-enable => pid.z.index-enable
net z-enable => pid.z.enable
net z-pos-cmd => pid.z.command
net z-pos-fb => pid.z.feedback
net z-output <= pid.z.output
# Step Gen signals/setup
setp hm2_7i96s.0.stepgen.01.dirsetup [JOINT_1]DIRSETUP
setp hm2_7i96s.0.stepgen.01.dirhold [JOINT_1]DIRHOLD
setp hm2_7i96s.0.stepgen.01.steplen [JOINT_1]STEPLEN
setp hm2_7i96s.0.stepgen.01.stepspace [JOINT_1]STEPSPACE
setp hm2_7i96s.0.stepgen.01.position-scale [JOINT_1]STEP_SCALE
setp hm2_7i96s.0.stepgen.01.step_type 0
setp hm2_7i96s.0.stepgen.01.control-type 1
setp hm2_7i96s.0.stepgen.01.maxaccel [JOINT_1]STEPGEN_MAXACCEL
setp hm2_7i96s.0.stepgen.01.maxvel [JOINT_1]STEPGEN_MAXVEL
setp hm2_7i96s.0.stepgen.01.step.invert_output true
# ---closedloop stepper signals---
net z-pos-cmd <= joint.1.motor-pos-cmd
net z-vel-cmd <= joint.1.vel-cmd
net z-output => hm2_7i96s.0.stepgen.01.velocity-cmd
net z-pos-fb <= hm2_7i96s.0.stepgen.01.position-fb
net z-pos-fb => joint.1.motor-pos-fb
net z-enable <= joint.1.amp-enable-out
net z-enable => hm2_7i96s.0.stepgen.01.enable
# ---setup home / limit switch signals---
net max-home-z => joint.1.home-sw-in
net z-neg-limit => joint.1.neg-lim-sw-in
net max-home-z => joint.1.pos-lim-sw-in
#*******************
# AXIS C JOINT 2
#*******************
setp pid.c.Pgain [JOINT_2]P
setp pid.c.Igain [JOINT_2]I
setp pid.c.Dgain [JOINT_2]D
setp pid.c.bias [JOINT_2]BIAS
setp pid.c.FF0 [JOINT_2]FF0
setp pid.c.FF1 [JOINT_2]FF1
setp pid.c.FF2 [JOINT_2]FF2
setp pid.c.deadband [JOINT_2]DEADBAND
setp pid.c.maxoutput [JOINT_2]MAX_OUTPUT
setp pid.c.error-previous-target true
setp pid.c.maxerror 0.012700
net c-index-enable => pid.c.index-enable
net c-axis-pos-cmd => pid.c.command
net c-pos-fb => pid.c.feedback
net c-output <= pid.c.output
# ---closedloop stepper setup---
net c-vel-cmd <= joint.2.vel-cmd
net c-output => hm2_7i96s.0.stepgen.04.velocity-cmd
net c-pos-fb <= hm2_7i96s.0.stepgen.04.position-fb
net c-pos-fb => joint.2.motor-pos-fb
net c-enable <= joint.2.amp-enable-out
net spindle-enable => pid.c.enable
#*******************
# SPINDLE
#*******************
setp pid.s.Pgain [SPINDLE_0]P
setp pid.s.Igain [SPINDLE_0]I
setp pid.s.Dgain [SPINDLE_0]D
setp pid.s.bias [SPINDLE_0]BIAS
setp pid.s.FF0 [SPINDLE_0]FF0
setp pid.s.FF1 [SPINDLE_0]FF1
setp pid.s.FF2 [SPINDLE_0]FF2
setp pid.s.deadband [SPINDLE_0]DEADBAND
setp pid.s.maxoutput [SPINDLE_0]MAX_OUTPUT
setp pid.s.error-previous-target true
# This setting is to limit bogus stepgen
# velocity corrections caused by position
# feedback sample time jitter.
setp pid.s.maxerror 0.012700
net spindle-index-enable => pid.s.index-enable
net spindle-enable => pid.s.enable
net spindle-vel-cmd-rpm => pid.s.command
net spindle-vel-fb-rpm => pid.s.feedback
net spindle-output <= pid.s.output
# Step Gen signals/setup
setp hm2_7i96s.0.stepgen.04.dirsetup [SPINDLE_0]DIRSETUP
setp hm2_7i96s.0.stepgen.04.dirhold [SPINDLE_0]DIRHOLD
setp hm2_7i96s.0.stepgen.04.steplen [SPINDLE_0]STEPLEN
setp hm2_7i96s.0.stepgen.04.stepspace [SPINDLE_0]STEPSPACE
setp hm2_7i96s.0.stepgen.04.position-scale [SPINDLE_0]STEP_SCALE
setp hm2_7i96s.0.stepgen.04.step_type 0
setp hm2_7i96s.0.stepgen.04.control-type 1
setp hm2_7i96s.0.stepgen.04.maxaccel [SPINDLE_0]STEPGEN_MAXACCEL
setp hm2_7i96s.0.stepgen.04.maxvel [SPINDLE_0]STEPGEN_MAXVEL
setp hm2_7i96s.0.stepgen.04.step.invert_output true
#net machine-is-on => hm2_7i96s.0.stepgen.04.enable
#net spindle-vel-cmd-rps => hm2_7i96s.0.stepgen.04.velocity-cmd
# ---Encoder feedback signals/setup---
setp hm2_7i96s.0.encoder.00.counter-mode 0
setp hm2_7i96s.0.encoder.00.filter 1
setp hm2_7i96s.0.encoder.00.index-invert 0
setp hm2_7i96s.0.encoder.00.index-mask 0
setp hm2_7i96s.0.encoder.00.index-mask-invert 0
setp hm2_7i96s.0.encoder.00.scale [SPINDLE_0]ENCODER_SCALE
net spindle-revs <= hm2_7i96s.0.encoder.00.position
net spindle-vel-fb-rps <= hm2_7i96s.0.encoder.00.velocity
net spindle-vel-fb-rpm <= hm2_7i96s.0.encoder.00.velocity-rpm
net spindle-index-enable <=> hm2_7i96s.0.encoder.00.index-enable
# ---setup spindle control signals---
net spindle-vel-cmd-rps <= spindle.0.speed-out-rps
net spindle-vel-cmd-rps-abs <= spindle.0.speed-out-rps-abs
net spindle-vel-cmd-rpm <= spindle.0.speed-out
net spindle-vel-cmd-rpm-abs <= spindle.0.speed-out-abs
net spindle-enable <= spindle.0.on
net spindle-cw <= spindle.0.forward
net spindle-ccw <= spindle.0.reverse
net spindle-brake <= spindle.0.brake
net spindle-revs => spindle.0.revs
net spindle-at-speed => spindle.0.at-speed
net spindle-vel-fb-rps => spindle.0.speed-in
net spindle-index-enable <=> spindle.0.index-enable
# ---Setup spindle at speed signals---
net spindle-vel-cmd-rps => near.0.in1
net spindle-vel-fb-rps => near.0.in2
net spindle-at-speed <= near.0.out
setp near.0.scale 1.000000
setp near.0.difference 3.333333
#******************************
# connect miscellaneous signals
#******************************
# ---HALUI signals---
net axis-select-x halui.axis.x.select
net jog-x-pos halui.axis.x.plus
net jog-x-neg halui.axis.x.minus
net jog-x-analog halui.axis.x.analog
net x-is-homed halui.joint.0.is-homed
net axis-select-z halui.axis.z.select
net jog-z-pos halui.axis.z.plus
net jog-z-neg halui.axis.z.minus
net jog-z-analog halui.axis.z.analog
net z-is-homed halui.joint.1.is-homed
net jog-selected-pos halui.axis.selected.plus
net jog-selected-neg halui.axis.selected.minus
net spindle-manual-cw halui.spindle.0.forward
net spindle-manual-ccw halui.spindle.0.reverse
net spindle-manual-stop halui.spindle.0.stop
net machine-is-on halui.machine.is-on
net jog-speed halui.axis.jog-speed
net MDI-mode halui.mode.is-mdi
# ---coolant signals---
net coolant-mist <= iocontrol.0.coolant-mist
net coolant-flood <= iocontrol.0.coolant-flood
# ---probe signal---
net probe-in => motion.probe-input
# ---motion control signals---
net in-position <= motion.in-position
net machine-is-enabled <= motion.motion-enabled
# ---digital in / out signals---
# ---estop signals---
net estop-out <= iocontrol.0.user-enable-out
net estop-ext => iocontrol.0.emc-enable-in
# ---manual tool change signals---
net tool-change-request <= iocontrol.0.tool-change
net tool-change-confirmed => iocontrol.0.tool-changed
net tool-number <= iocontrol.0.tool-prep-number
# ---Use external manual tool change dialog---
loadusr -W hal_manualtoolchange
net tool-change-request => hal_manualtoolchange.change
net tool-change-confirmed <= hal_manualtoolchange.changed
net tool-number => hal_manualtoolchange.number
# ---ignore tool prepare requests---
net tool-prepare-loopback iocontrol.0.tool-prepare => iocontrol.0.tool-prepared
Auxillary HAL
Code:
# Include your custom HAL commands here
# This file will not be overwritten when you run PNCconf again
loadrt mux2 count=1
addf mux2.0 servo-thread
# Mux inputs
net c-axis-pos-cmd joint.2.motor-pos-cmd => mux2.0.in0
net spindle-vel-cmd-rpm => mux2.0.in1
net spindle-enable => mux2.0.sel
net spindle-enable => hm2_7i96s.0.stepgen.04.enable
# Mux output to stepgen.04
net mux-out mux2.0.out => hm2_7i96s.0.stepgen.04.position-cmd
# Feedback and enable
net c-pos-fb <= hm2_7i96s.0.stepgen.04.position-fb
net c-pos-fb => joint.2.motor-pos-fb
INI FILE
Code:
# Generated by PNCconf at Wed Apr 2 16:24:00 2025
# Using LinuxCNC version: Master (2.9)
# If you make changes to this file, they will be
# overwritten when you run PNCconf again
[EMC]
MACHINE = Turn+C_lathe
DEBUG = 0
VERSION = 1.1
[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/maksym/linuxcnc/nc_files
PYVCP = pyvcp-panel.xml
INCREMENTS = 5mm 1mm .5mm .1mm .05mm .01mm .005mm
LATHE = 1
POSITION_FEEDBACK = ACTUAL
DEFAULT_LINEAR_VELOCITY = 13.333333
MAX_LINEAR_VELOCITY = 41.666667
MIN_LINEAR_VELOCITY = 0.500000
DEFAULT_ANGULAR_VELOCITY = 12.000000
MAX_ANGULAR_VELOCITY = 180.000000
MIN_ANGULAR_VELOCITY = 1.666667
EDITOR = gedit
GEOMETRY = xyz
CYCLE_TIME = 100
[FILTER]
PROGRAM_EXTENSION = .png,.gif,.jpg Greyscale Depth Image
PROGRAM_EXTENSION = .py Python Script
png = image-to-gcode
gif = image-to-gcode
jpg = image-to-gcode
py = python
[TASK]
TASK = milltask
CYCLE_TIME = 0.010
[RS274NGC]
PARAMETER_FILE = linuxcnc.var
RS274NGC_STARTUP_CODE = G21 G40 G90 G94 G97 G64 P0.025
[EMCMOT]
EMCMOT = motmod
COMM_TIMEOUT = 1.0
SERVO_PERIOD = 1000000
[HMOT]
# **** This is for info only ****
CARD0=hm2_7i96s.0
[HAL]
HALUI = halui
HALFILE = Turn+C_lathe.hal
HALFILE = c_axis_mux.hal
HALFILE = custom.hal
POSTGUI_HALFILE = custom_postgui.hal
SHUTDOWN = shutdown.hal
[HALUI]
[KINS]
JOINTS = 3
KINEMATICS = trivkins coordinates=XZC
[TRAJ]
COORDINATES = XZC
LINEAR_UNITS = mm
ANGULAR_UNITS = degree
DEFAULT_LINEAR_VELOCITY = 4.17
MAX_LINEAR_VELOCITY = 41.67
NO_FORCE_HOMING = 1
[EMCIO]
EMCIO = io
CYCLE_TIME = 0.100
TOOL_TABLE = tool.tbl
#******************************************
[AXIS_X]
MAX_VELOCITY = 41.666666666666664
MAX_ACCELERATION = 500.0
MIN_LIMIT = -0.0
MAX_LIMIT = 100.0
[JOINT_0]
TYPE = LINEAR
HOME = 20.0
FERROR = 10.0
MIN_FERROR = 1.0
MAX_VELOCITY = 41.666666666666664
MAX_ACCELERATION = 500.0
# The values below should be 25% larger than MAX_VELOCITY and MAX_ACCELERATION
# If using BACKLASH compensation STEPGEN_MAXACCEL should be 100% larger.
STEPGEN_MAXVEL = 52.08
STEPGEN_MAXACCEL = 625.00
P = 1000.0
I = 0.0
D = 0.0
FF0 = 0.0
FF1 = 1.0
FF2 = 0.0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 0.0
# these are in nanoseconds
DIRSETUP = 10000
DIRHOLD = 10000
STEPLEN = 10000
STEPSPACE = 10000
STEP_SCALE = -800.0
MIN_LIMIT = -0.0
MAX_LIMIT = 100.0
HOME_OFFSET = 0.000000
HOME_SEARCH_VEL = -13.333333
HOME_LATCH_VEL = -0.500000
HOME_FINAL_VEL = 5.000000
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 2
#******************************************
#******************************************
[AXIS_Z]
MAX_VELOCITY = 25.0
MAX_ACCELERATION = 750.0
MIN_LIMIT = -432.0
MAX_LIMIT = 0.0
[JOINT_1]
TYPE = LINEAR
HOME = -20.0
FERROR = 10.0
MIN_FERROR = 1.0
MAX_VELOCITY = 25.0
MAX_ACCELERATION = 750.0
# The values below should be 25% larger than MAX_VELOCITY and MAX_ACCELERATION
# If using BACKLASH compensation STEPGEN_MAXACCEL should be 100% larger.
STEPGEN_MAXVEL = 31.25
STEPGEN_MAXACCEL = 937.50
P = 1000.0
I = 0.0
D = 0.0
FF0 = 0.0
FF1 = 1.0
FF2 = 0.0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 0.0
# these are in nanoseconds
DIRSETUP = 10000
DIRHOLD = 10000
STEPLEN = 10000
STEPSPACE = 10000
STEP_SCALE = 800.0
MIN_LIMIT = -432.0
MAX_LIMIT = 0.0
HOME_OFFSET = 0.000000
HOME_SEARCH_VEL = -13.333333
HOME_LATCH_VEL = -0.500000
HOME_FINAL_VEL = 5.000000
HOME_USE_INDEX = NO
HOME_IGNORE_LIMITS = YES
HOME_SEQUENCE = 1
#******************************************
#******************************************
[AXIS_C]
MAX_VELOCITY = 360
MAX_ACCELERATION = 720
MIN_LIMIT = -999999
MAX_LIMIT = 999999
ANGULAR = 1
[JOINT_2]
TYPE = ANGULAR
HOME = 0
FERROR = 5
MIN_FERROR = 1.0
MAX_VELOCITY = 360
MAX_ACCELERATION = 720
# The values below should be 25% larger than MAX_VELOCITY and MAX_ACCELERATION
# If using BACKLASH compensation STEPGEN_MAXACCEL should be 100% larger.
STEPGEN_MAXVEL = 400
STEPGEN_MAXACCEL = 800
P = 1000.0
I = 0.0
D = 0.0
FF0 = 0.0
FF1 = 1.0
FF2 = 0.0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 0.0
# these are in nanoseconds
DIRSETUP = 10000
DIRHOLD = 10000
STEPLEN = 5000
STEPSPACE = 5000
STEP_SCALE = 27.77778
HOME_SEQUENCE = 0
[SPINDLE_0]
MAX_VELOCITY = 3.3333333333333335
MAX_ACCELERATION = 300.0
# The values below should be 25% larger than MAX_VELOCITY and MAX_ACCELERATION
# If using BACKLASH compensation STEPGEN_MAXACCEL should be 100% larger.
STEPGEN_MAXVEL = 4.17
STEPGEN_MAXACCEL = 375.00
P = 0.0
I = 0.0
D = 0.0
FF0 = 1.0
FF1 = 0.0
FF2 = 0.0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 2000.0
ENCODER_SCALE = 8000.0
# these are in nanoseconds
DIRSETUP = 10000
DIRHOLD = 10000
STEPLEN = 5000
STEPSPACE = 5000
STEP_SCALE = -1000.0
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1 year 6 months ago #325584
by PCW
Replied by PCW on topic Using a servo as a spindle and positional axis - keep getting vague errors
its fairly complex...
You might take a look at this, using the orient component.
forum.linuxcnc.org/10-advanced-configura...is-from-inside-gcode
You might take a look at this, using the orient component.
forum.linuxcnc.org/10-advanced-configura...is-from-inside-gcode
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1 year 6 months ago #325585
by ffffrf
Replied by ffffrf on topic Using a servo as a spindle and positional axis - keep getting vague errors
sadly so yes, although i cannot help but think there must be a simpler way to do this with mux, just somehow switch between position and velocity modes depending on an input
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1 year 6 months ago #325591
by COFHAL
What model of servo motor are you using?
Replied by COFHAL on topic Using a servo as a spindle and positional axis - keep getting vague errors
Attachment not found
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1 year 6 months ago #325598
by Aciera
Replied by Aciera on topic Using a servo as a spindle and positional axis - keep getting vague errors
This config might also be of interest:
forum.linuxcnc.org/38-general-linuxcnc-q...blem?start=20#324276
forum.linuxcnc.org/38-general-linuxcnc-q...blem?start=20#324276
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1 year 6 months ago #325616
by ffffrf
Replied by ffffrf on topic Using a servo as a spindle and positional axis - keep getting vague errors
cheapo 1kw servo motor
motor model A2M-80SV03230
driver S2SVD20
It works well and was generally easy to get running, atleast without the whole switching between c axis and turning
motor model A2M-80SV03230
driver S2SVD20
It works well and was generally easy to get running, atleast without the whole switching between c axis and turning
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1 year 6 months ago #325617
by ffffrf
Replied by ffffrf on topic Using a servo as a spindle and positional axis - keep getting vague errors
thank you I will take a look at that
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1 year 6 months ago #325636
by COFHAL
Replied by COFHAL on topic Using a servo as a spindle and positional axis - keep getting vague errors
This setup works for me. My servo is a LICHUAN, so you need to install the caxis.comp and gn_userkins.comp components, create a remaps folder, and save the two ngc files there.
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1 year 6 months ago #325638
by COFHAL
Replied by COFHAL on topic Using a servo as a spindle and positional axis - keep getting vague errors
Do you have the servo driver manual?
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1 year 6 months ago #325651
by ffffrf
Replied by ffffrf on topic Using a servo as a spindle and positional axis - keep getting vague errors
Hey - yes I do have the servo manual, however, it is not letting me attach it to the email as it says the attachment size exceeds the result.... Is there any other way I can send it? I would also love to ask you a couple more question on your setup if possible to learn more about how you went about making it incase I need to modify things. Do you have a discord account or something?
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