problem with num_extrajoint
- Thayloreing
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26 Jul 2025 23:18 #332383
by Thayloreing
problem with num_extrajoint was created by Thayloreing
I'm using LinuxCNC 2.9.4 with trivkins and want to use an extra joint that doesn't go through the path planner. I've already configured it in the .ini file.
[KINS] KINEMATICS = trivkins coordinates=XY
Joint = 3
[EMCMOT] num_extrajoints = 1
Even so, it doesn't work correctly. LinuxCNC either won't load or gives a joint mapping error.
❓ Has anyone used num_extrajoints successfully? Is there any additional details beyond that?
The idea is to just have normal X and Y coordinates, and a free joint controllable via HAL, outside of the path planner.
[KINS] KINEMATICS = trivkins coordinates=XY
Joint = 3
[EMCMOT] num_extrajoints = 1
Even so, it doesn't work correctly. LinuxCNC either won't load or gives a joint mapping error.
❓ Has anyone used num_extrajoints successfully? Is there any additional details beyond that?
The idea is to just have normal X and Y coordinates, and a free joint controllable via HAL, outside of the path planner.
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- Thayloreing
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26 Jul 2025 23:54 #332386
by Thayloreing
Replied by Thayloreing on topic problem with num_extrajoint
If any of the developers could help me, I’d really appreciate it. I’ve searched extensively for information on the use of NUM_EXTRA_JOINTS, but haven’t found any practical examples of someone actually using this feature. However, it is documented in the official LinuxCNC sources. This feature would solve a specific problem I’m currently facing with a machine. Thank you in advance for any assistance.
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- tommylight
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27 Jul 2025 00:21 #332387
by tommylight
Replied by tommylight on topic problem with num_extrajoint
Wait.
It seems you are not aware that most of planet earth is sleeping right now, it is 2:16AM here, it is still night all over the world, except both Americas, so the only option is to wait. OK, might be early morning in Japan...
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This reply was prompted as a result of both of his posts being made inside of an hour.
It seems you are not aware that most of planet earth is sleeping right now, it is 2:16AM here, it is still night all over the world, except both Americas, so the only option is to wait. OK, might be early morning in Japan...
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This reply was prompted as a result of both of his posts being made inside of an hour.
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- Thayloreing
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27 Jul 2025 00:37 #332390
by Thayloreing
Replied by Thayloreing on topic problem with num_extrajoint
I apologize, it wasn't my intention, I couldn't edit it so I added it below, it wasn't my intention to rush anyone
The following user(s) said Thank You: tommylight
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27 Jul 2025 01:54 #332391
by tommylight
Replied by tommylight on topic problem with num_extrajoint
You are welcomed to post as much as you like, always, but it seemed you were hoping someone will answer at this hour, so i thought it would be OK to remind you this is the time when no one is here, except members form both Americas.
You were a bit late as from 11PM to 1AM my time (Central Europe) is when there are most users active here, and also at mid day is usually busy.
Sorry, but i never used extra joints, so i can not help.
In about 2 hours the Asia and Australia will be up, plenty of our members form there, so someone might just be able to help, if that is not to late for you.
I am off to bed, 3:52 AM, watching "how much do we actually know about space" on the "Spark" channel on youtube.
You were a bit late as from 11PM to 1AM my time (Central Europe) is when there are most users active here, and also at mid day is usually busy.
Sorry, but i never used extra joints, so i can not help.
In about 2 hours the Asia and Australia will be up, plenty of our members form there, so someone might just be able to help, if that is not to late for you.
I am off to bed, 3:52 AM, watching "how much do we actually know about space" on the "Spark" channel on youtube.
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- Aciera
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27 Jul 2025 06:19 #332399
by Aciera
Replied by Aciera on topic problem with num_extrajoint
There is a folder with sim configs for extrajoints:
'configs/sim/axis/extrajoints/'
'configs/sim/axis/extrajoints/'
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