Fail to homing (mechanical switch + index pulse)
05 Jun 2018 14:59 #111680
by andypugh
Replied by andypugh on topic Fail to homing (mechanical switch + index pulse)
What did you upgrade? Linux or LinuxCNC?
(And from what to what)
(And from what to what)
Please Log in or Create an account to join the conversation.
- CNCCustoms
-
- Offline
- Junior Member
-
Less
More
- Posts: 27
- Thank you received: 1
05 Jun 2018 15:12 #111682
by CNCCustoms
Replied by CNCCustoms on topic Fail to homing (mechanical switch + index pulse)
This is where im really dumb i think... i used the notification at the top right of the screen. So i dont even know what i upgraded and from what to what. Really embarrassing! I do know that i didnt install 2.7.13 but i am on that version of linuxcnc now. So i must have upgraded linuxcnc then?
Please Log in or Create an account to join the conversation.
05 Jun 2018 21:16 #111705
by andypugh
Replied by andypugh on topic Fail to homing (mechanical switch + index pulse)
What does uname -a now say?
And is there a message when it crashes?
And is there a message when it crashes?
Please Log in or Create an account to join the conversation.
- CNCCustoms
-
- Offline
- Junior Member
-
Less
More
- Posts: 27
- Thank you received: 1
06 Jun 2018 02:57 #111715
by CNCCustoms
Replied by CNCCustoms on topic Fail to homing (mechanical switch + index pulse)
Uname -a??
No message when it crashes. Jist freezes. Also no messages when it disables.
No message when it crashes. Jist freezes. Also no messages when it disables.
Please Log in or Create an account to join the conversation.
- CNCCustoms
-
- Offline
- Junior Member
-
Less
More
- Posts: 27
- Thank you received: 1
06 Jun 2018 09:13 - 06 Jun 2018 09:14 #111729
by CNCCustoms
Replied by CNCCustoms on topic Fail to homing (mechanical switch + index pulse)
Ok. Uname -a says:
Linux debian 3.4.9-rtai-686-pae #1 SMP PREEMPT Debian 3.4.55-4linuxcnc i686 GNU/ Linux
Im on Gmoccapy 1.5.9
Linux debian 3.4.9-rtai-686-pae #1 SMP PREEMPT Debian 3.4.55-4linuxcnc i686 GNU/ Linux
Im on Gmoccapy 1.5.9
Last edit: 06 Jun 2018 09:14 by CNCCustoms. Reason: Gmoccapy version added
Please Log in or Create an account to join the conversation.
06 Jun 2018 09:26 #111730
by andypugh
Replied by andypugh on topic Fail to homing (mechanical switch + index pulse)
The (partially) good news is that you haven't upgraded the OS and lost the realtime kernel in the process.
(Though that would be an easy fix)
Moving from LinuxCNC 2.7.12 to 2.7.13 ought to make things better, not worse.
It is possible that some other package has been updated and that is causing an instability.
looking in the /var/log/apt/history.log file might show what else was updated at the same time.
(Though that would be an easy fix)
Moving from LinuxCNC 2.7.12 to 2.7.13 ought to make things better, not worse.
It is possible that some other package has been updated and that is causing an instability.
looking in the /var/log/apt/history.log file might show what else was updated at the same time.
Please Log in or Create an account to join the conversation.
- CNCCustoms
-
- Offline
- Junior Member
-
Less
More
- Posts: 27
- Thank you received: 1
06 Jun 2018 09:49 #111733
by CNCCustoms
Replied by CNCCustoms on topic Fail to homing (mechanical switch + index pulse)
That files is empty
Please Log in or Create an account to join the conversation.
06 Jun 2018 10:19 #111736
by andypugh
Replied by andypugh on topic Fail to homing (mechanical switch + index pulse)
I found it through a Google search (I am not on a Linux machine at the moment)
Google also suggests opening the Synaptic package manager and looking in File -> History.
Google also suggests opening the Synaptic package manager and looking in File -> History.
Please Log in or Create an account to join the conversation.
- CNCCustoms
-
- Offline
- Junior Member
-
Less
More
- Posts: 27
- Thank you received: 1
06 Jun 2018 10:56 #111737
by CNCCustoms
Replied by CNCCustoms on topic Fail to homing (mechanical switch + index pulse)
Ok Thanks Andy... I will check it out. Any luck on the index homing issue?
Please Log in or Create an account to join the conversation.
06 Jun 2018 11:50 #111742
by andypugh
I think the problem is likely to be that the feedback is coming from the stepgen and not from the encoder.
I think with a velocity-mode stepper system using PID and encoders with index the position feedback needs to come from the encoder.
I am unclear whether all the feedbacks need to be from the encoder, but the PID certainly does.
Replied by andypugh on topic Fail to homing (mechanical switch + index pulse)
Ok Thanks Andy... I will check it out. Any luck on the index homing issue?
I think the problem is likely to be that the feedback is coming from the stepgen and not from the encoder.
I think with a velocity-mode stepper system using PID and encoders with index the position feedback needs to come from the encoder.
I am unclear whether all the feedbacks need to be from the encoder, but the PID certainly does.
Please Log in or Create an account to join the conversation.
Time to create page: 0.094 seconds