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abdulasis12
abdulasis12

26 Jun 2024 20:48 - 26 Jun 2024 20:51

Replied by abdulasis12 on topic Please HELP config ethercat servo motor

Please HELP config ethercat servo motor

Category: EtherCAT

linuxcnc@debian:~/linuxcnc/configs/linuxcnc-cia402-main$ halcmd loadusr -W lcec_conf ethercat-conf.xml
linuxcnc@debian:~/linuxcnc/configs/linuxcnc-cia402-main$ halcmd show pin lcec

Component Pins:
Owner   Type  Dir         Value  Name
4  u32   OUT    0x00000001  lcec.conf.master-count      
4  u32   OUT    0x00000004  lcec.conf.slave-count

rodw

26 Jun 2024 20:47

Replied by rodw on topic Linuxcnc 2.8.4 does not show tandem items.

Linuxcnc 2.8.4 does not show tandem items.

Category: General LinuxCNC Questions

Have a look at the homing veocities
linuxcnc.org/docs/stable/html/config/ini...tml#_home_search_vel
As the docs say there is trade off between homing speed and overrun.
From memory I use search_vel 12 m/min and placed the home switch far enough away from the limit switch so the axis could coast to a stop
Then a much slower latch velocity to find the home switch edge
Finally a home_offset (of about 40mm) to move close to the limit switch to maximize the machine envelope

Whilst you can use a shared home/limit switch, and this works fine where there is some weight being moved (eg milling machine table) so the axis stops quickly, a lightweight gantry might be better off with seperate switches so you can home at speed.

Aciera

26 Jun 2024 20:44

Replied by Aciera on topic Resume not working after M0

Resume not working after M0

Category: General LinuxCNC Questions

G90 G20 S20000 G17

Have you tried removing the 'S20000' from your preamble?

cncbeagle
cncbeagle

26 Jun 2024 20:36

Replied by cncbeagle on topic Resume not working after M0

Resume not working after M0

Category: General LinuxCNC Questions

Following up on the spindle-at-speed idea I created a pyvcp checkbox to bypass this function. I created an or2 of the bypass and the spindle at speed signal from the VFD output to the spindle-at-speed signal. Unfortunately, it looks like Linuxcnc is using the spindle.0.at-speed pin to inhibit non-rapid moves. I haven't figured out how the bypass that pin.

If I start axis with the VFD unpowered I can continue probing using non-rapid moves forever. Then after probing the grid I power the VFD and mill the pcb. A kludge but it works.

Curiously, my touch-to-zero routine works every time regardless of VFD power state. It has non-rapid moves. Other similar touch off routines also work. Is there different intended behavior vs the spindle at speed function for routines vs gcode programs?

(touch_2_zero.ngc)

O <touch_2_zero> sub 
G91 (switch to relative coordinates)
G38.2 Z-0.75 F5 (down fast to get approximate)
G92 Z0.0
F10 G1 Z.06 (up .06)
G38.2 Z-0.1 F1 (down slow to get exact)

(Version 3)
G90
G92 Z0.0
G0 Z0.25

O <touch_2_zero> endsub
M2

Aciera

26 Jun 2024 20:33

Replied by Aciera on topic Error adding tool

Error adding tool

Category: Gmoccapy

It seems, that you are using the master branch, aren't you?

The bug report on github linked above seems to refer to version 2.9.

greg23_78
greg23_78

26 Jun 2024 20:31

Replied by greg23_78 on topic pin "pyvcp.XXX" does not exist

pin "pyvcp.XXX" does not exist

Category: pyVCP

[DISPLAY]
DISPLAY = axis
EDITOR = mousepad
PROGRAM_PREFIX = /home/cnc/linuxcnc/nc_files
POSITION_OFFSET = RELATIVE
POSITION_FEEDBACK = ACTUAL
MAX_FEED_OVERRIDE = 1.2
MIN_LINEAR_VELOCITY = 0.5
DEFAULT_LINEAR_VELOCITY = 6.0
MAX_LINEAR_VELOCITY = 133.3
INCREMENTS = 5mm 1mm .5mm .1mm .05mm .01mm
CYCLE_TIME = 0.1
INTRO_GRAPHIC = emc2.gif
INTRO_TIME = 3
OPEN_FILE = ""
PYVCP = cnc_samua.xml
LATHE = 1

name of my xml file : cnc_samua.xml