How to. 2 or more motors on one axis. Gantry
30 Dec 2020 13:04 #193526
by rodw
Replied by rodw on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
Can you start Linuxcnc from the command line and paste the output to a text file and share it here?
That can offer uncover something
That can offer uncover something
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30 Dec 2020 16:09 #193557
by nau
From run Home all, home X&Z, stuck on Y hit e-stop after.
Replied by nau on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
here is log with -v run from terminal.Can you start Linuxcnc from the command line and paste the output to a text file and share it here?
That can offer uncover something
From run Home all, home X&Z, stuck on Y hit e-stop after.
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30 Dec 2020 17:27 #193565
by tommylight
Replied by tommylight on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
From the attached log:
HAL: ERROR: signal 'spindle-vel-cmd-rpm' not found
Otherwise there is no useful info in that attachment .
To check the limit switches, start LinuxCNC and watch the DRO while tripping the limit switches manually, check if the limit switch on say X axis triggers the arrow on screen to the left of the X axis position.
HAL: ERROR: signal 'spindle-vel-cmd-rpm' not found
Otherwise there is no useful info in that attachment .
To check the limit switches, start LinuxCNC and watch the DRO while tripping the limit switches manually, check if the limit switch on say X axis triggers the arrow on screen to the left of the X axis position.
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30 Dec 2020 18:31 #193569
by nau
In HAL Configuration it's shown joint0-3.home-sw-in's are signalling while taping.
Here is how preview screen looks like after homing attempt: X and Z homing successfully and set to home pos. Y started to home, Y1 hit limit and stop. Y2 hit limit but goes further.
Replied by nau on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
There is only 1,2,3,4 in DRO section and if I tapping on switch there is nothing happens on DRO screen.To check the limit switches, start LinuxCNC and watch the DRO while tripping the limit switches manually, check if the limit switch on say X axis triggers the arrow on screen to the left of the X axis position.
In HAL Configuration it's shown joint0-3.home-sw-in's are signalling while taping.
Here is how preview screen looks like after homing attempt: X and Z homing successfully and set to home pos. Y started to home, Y1 hit limit and stop. Y2 hit limit but goes further.
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30 Dec 2020 18:39 #193572
by tommylight
Replied by tommylight on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
That points to incorrect settings in hal and/or miss wired switches in hal.
Hal and ini files ?
Hal and ini files ?
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30 Dec 2020 18:55 #193577
by nau
Replied by nau on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
posted hereThat points to incorrect settings in hal and/or miss wired switches in hal.
Hal and ini files ?
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30 Dec 2020 20:26 - 30 Dec 2020 20:26 #193584
by rodw
You are in joint mode for some reason based on your homing screen dump. You cannot home Y in joint mode.
Could you remove the "kinstype=b" I do not have it in my config. Mine is a very original config based on 2.8 and if it was present, It caused issues becasue the GUIs at that time could not deal with it.
Also, I would eliminate all warnings and errors from your log. I have a feeling GEOMETRY=XYZ may need to be XYYZ but the docs are inconclusive. There have been a number of changes to behaviour since I set up my machine. Try that and see if it removes the warning.
Replied by rodw on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
here is log with -v run from terminal.Can you start Linuxcnc from the command line and paste the output to a text file and share it here?
That can offer uncover something
From run Home all, home X&Z, stuck on Y hit e-stop after.
You are in joint mode for some reason based on your homing screen dump. You cannot home Y in joint mode.
Could you remove the "kinstype=b" I do not have it in my config. Mine is a very original config based on 2.8 and if it was present, It caused issues becasue the GUIs at that time could not deal with it.
Also, I would eliminate all warnings and errors from your log. I have a feeling GEOMETRY=XYZ may need to be XYYZ but the docs are inconclusive. There have been a number of changes to behaviour since I set up my machine. Try that and see if it removes the warning.
Last edit: 30 Dec 2020 20:26 by rodw.
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31 Dec 2020 05:32 - 31 Dec 2020 08:06 #193608
by nau
fixed error with missing signal, remove GEOMETRY (Geometry has no effect without a rotary axis) - won't helped
as I said before remove or adding kinstype=b or BOTH won't do much - XZ, with parameter I see 4 joints, and without i see 3 axis. Homes in both modes same. One of the Y axis trying to go way way after limit. Log is slightly different without kinstype=b (attached log of run both options with kinstype and without).
BTW there is an option in GUI - view axis mode/world mode. I guess after homing gui shall show axis instead of joints.
Also done one thing - take old config and changed home switch input from another Y axis - homes and works exactly fine.
Replied by nau on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
Thank you.You are in joint mode for some reason based on your homing screen dump. You cannot home Y in joint mode.
Could you remove the "kinstype=b" I do not have it in my config. Mine is a very original config based on 2.8 and if it was present, It caused issues becasue the GUIs at that time could not deal with it.
Also, I would eliminate all warnings and errors from your log. I have a feeling GEOMETRY=XYZ may need to be XYYZ but the docs are inconclusive. There have been a number of changes to behaviour since I set up my machine. Try that and see if it removes the warning.
fixed error with missing signal, remove GEOMETRY (Geometry has no effect without a rotary axis) - won't helped
as I said before remove or adding kinstype=b or BOTH won't do much - XZ, with parameter I see 4 joints, and without i see 3 axis. Homes in both modes same. One of the Y axis trying to go way way after limit. Log is slightly different without kinstype=b (attached log of run both options with kinstype and without).
BTW there is an option in GUI - view axis mode/world mode. I guess after homing gui shall show axis instead of joints.
Also done one thing - take old config and changed home switch input from another Y axis - homes and works exactly fine.
Last edit: 31 Dec 2020 08:06 by nau.
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31 Dec 2020 05:46 #193610
by rodw
Replied by rodw on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
This looks new
This sounds like the home switch is not connected to the right pin or the homing direction is wrong. I've been caught with similar issues heaps of times...
Note:
Individual axis homing is not currently supported for
KINEMATICS_IDENTITY with duplicate axis letter <Y>as I said before remove or adding kinstype=b or BOTH won't do much - XZ, with parameter I see 4 joints, and without i see 3 axis. Homes in both modes same. One of the Y axis trying to go way way after limit. Log is slightly different without kinstype=b (attached log of run both options with kinstype and without).
This sounds like the home switch is not connected to the right pin or the homing direction is wrong. I've been caught with similar issues heaps of times...
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31 Dec 2020 11:51 #193630
by tommylight
And yes, when using tandem axis ( two motors for the same axis ) LinuxCNC is always in joint mode until homed, then it switches to world mode.
Replied by tommylight on topic How to. 2 or more motors on one axis. Gantry LinuxCNC 2.8 Master
+1
This sounds like the home switch is not connected to the right pin or the homing direction is wrong. I've been caught with similar issues heaps of times...
And yes, when using tandem axis ( two motors for the same axis ) LinuxCNC is always in joint mode until homed, then it switches to world mode.
Please Log in or Create an account to join the conversation.
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