Is this 5-axis machine possible with LinuxCNC?
30 Mar 2022 11:31 #238714
by SertanATL
Replied by SertanATL on topic Is this 5-axis machine possible with LinuxCNC?
It definitely helped! I now understand what it is clearly.
I will be happy to use RTCP but I don't know how hard it is to configure in comparison to configuring the machine without RTCP.
I will be happy to use RTCP but I don't know how hard it is to configure in comparison to configuring the machine without RTCP.
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07 Apr 2022 07:43 #239516
by SertanATL
Replied by SertanATL on topic Is this 5-axis machine possible with LinuxCNC?
Hi Andy!
After our discussion about this 5 axis machine, I bought a PC and installed LinuxCNC 2.9.0-pre0. Everything is running fine.
I also bought a Mesa 7i76E card, arriving soon.
I already own 3 different 3 axis router that run Mach3, so I will be able to test my config on one of them.
I came this far and now I want to modify existing kins modules to fit my needs. Unfortunately I am not a programmer and I think I need to learn how to chance existing files. I am learning to code in Python on YouTube right now.
What advice would you give me going forward?
After our discussion about this 5 axis machine, I bought a PC and installed LinuxCNC 2.9.0-pre0. Everything is running fine.
I also bought a Mesa 7i76E card, arriving soon.
I already own 3 different 3 axis router that run Mach3, so I will be able to test my config on one of them.
I came this far and now I want to modify existing kins modules to fit my needs. Unfortunately I am not a programmer and I think I need to learn how to chance existing files. I am learning to code in Python on YouTube right now.
What advice would you give me going forward?
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07 Apr 2022 09:11 #239521
by rodw
Replied by rodw on topic Is this 5-axis machine possible with LinuxCNC?
Watch my 7i76e video
There is also one by the feral engineer you should find.
Feedback is you should watch both as they have a different focus.
There is also one by the feral engineer you should find.
Feedback is you should watch both as they have a different focus.
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07 Apr 2022 12:57 #239536
by andypugh
Replied by andypugh on topic Is this 5-axis machine possible with LinuxCNC?
I think that Maxkins will actually work for you without major modifications.I came this far and now I want to modify existing kins modules to fit my needs. Unfortunately I am not a programmer and I think I need to learn how to chance existing files. I am learning to code in Python on YouTube right now.
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07 Apr 2022 13:31 #239539
by SertanATL
Replied by SertanATL on topic Is this 5-axis machine possible with LinuxCNC?
How do I modify? If there are pdf's available I would like to read.
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07 Apr 2022 13:44 #239542
by andypugh
Replied by andypugh on topic Is this 5-axis machine possible with LinuxCNC?
It might not need any modifications. Though I suspect that the axis home positions will need to be set up carefully to align with the rotation centres.
maxkins does not seem to have any inputs for rotational axis offsets other than "pivot-length" which I believe would be set up in the tool table and linked directly in HAL (as in the demo config)
Have you tried the demo config?
maxkins does not seem to have any inputs for rotational axis offsets other than "pivot-length" which I believe would be set up in the tool table and linked directly in HAL (as in the demo config)
Have you tried the demo config?
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08 Apr 2022 08:46 #239638
by SertanATL
Replied by SertanATL on topic Is this 5-axis machine possible with LinuxCNC?
I am new to Linuxcnc and it is hard for me to understand what you mean.
I opened up Max5kins, looked at it's hal file but I dont really get it.
I opened up Max5kins, looked at it's hal file but I dont really get it.
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08 Apr 2022 13:46 #239666
by andypugh
Replied by andypugh on topic Is this 5-axis machine possible with LinuxCNC?
Having looked a bit more carefully, I am a little confused myself...
In the INI we have:
And in the HAL:
So pivot-length = 0.
So, what actually happens, is that the tool table contains a "W" length entry for each tool, and the max5kins uses that in the calculations.
But that idea is not supported by an inspection of the max5 demo tooltable.
I feel sure that experimentation with the demo config and virtual machine tool will make it all clearer.
In the INI we have:
[MAX]
# distance from the end of the "reference tool" (tool-length - 0) to the
# center of the head tilt axis
B_PIVOT_LENGTH = 0And in the HAL:
# kins needs this value
setp maxkins.pivot-length [MAX]B_PIVOT_LENGTHSo pivot-length = 0.
So, what actually happens, is that the tool table contains a "W" length entry for each tool, and the max5kins uses that in the calculations.
// B correction
double zb = (*(haldata->pivot_length) + joints[8]) * cos(d2r(joints[4]));
double xb = (*(haldata->pivot_length) + joints[8]) * sin(d2r(joints[4]));But that idea is not supported by an inspection of the max5 demo tooltable.
I feel sure that experimentation with the demo config and virtual machine tool will make it all clearer.
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14 May 2022 13:14 #242950
by fery15sty
Replied by fery15sty on topic Is this 5-axis machine possible with LinuxCNC?
i have tried kinematics and vismach simulation like that. But I haven't tried this to be a real machine
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