5axiskins
16 Jul 2013 16:40 #36701
by eslavko
Hello...
I try to setup (for now in simulator mode) 5axis machine.
After upgrading to linuxcnc 2.5.2 I can't start linuxcnc as 5axiskins module is missing.
Somewhere I found that this module is deleted. So what's the truth?
And how to setup 5axis machine with compensation? (probably without recompiling linuxcnc)
I try to setup (for now in simulator mode) 5axis machine.
After upgrading to linuxcnc 2.5.2 I can't start linuxcnc as 5axiskins module is missing.
Somewhere I found that this module is deleted. So what's the truth?
And how to setup 5axis machine with compensation? (probably without recompiling linuxcnc)
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16 Jul 2013 20:32 #36705
by andypugh
The 5-axis demo config should have been removed when the kinematics file that it relied on was removed.
The commit that removed 5axiskins and the explanation of why is here:
git.linuxcnc.org/gitweb?p=linuxcnc.git;a...6884e4d5267218eccf07
I am not sure what that kinematics file did, and I am even less sure what you are expecting from a 5-axis kinematics.
If you create a kinematics file (possibly based on trivkins) then you can compile and install it using "comp" without needing the LinuxCNC source, and without recompiling the whole of LinuxCNC.
Hello...
I try to setup (for now in simulator mode) 5axis machine.
After upgrading to linuxcnc 2.5.2 I can't start linuxcnc as 5axiskins module is missing.
The 5-axis demo config should have been removed when the kinematics file that it relied on was removed.
The commit that removed 5axiskins and the explanation of why is here:
git.linuxcnc.org/gitweb?p=linuxcnc.git;a...6884e4d5267218eccf07
I am not sure what that kinematics file did, and I am even less sure what you are expecting from a 5-axis kinematics.
If you create a kinematics file (possibly based on trivkins) then you can compile and install it using "comp" without needing the LinuxCNC source, and without recompiling the whole of LinuxCNC.
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16 Jul 2013 21:03 #36709
by eslavko
If I understand correctly then 5axiskins can handle size of AC head and possibe offsets. But As I don't have actual CAM for that (yet) I assume that this can be done in CAM too.
Actually I was thinking if that kins work like that (example follow)
I had cone in table.
With B&C axis at 0 deg I move tip of tool just to the top of the cone.
Now if I command C=90 degre then machine should move C, Z and X axis to got final destination, with tool tip touching the top of cone but with tool angled 90 degres.
So joints and axes is not just simple connected. (or it is and CAM calculate correct values based on geometry of head)
Actually I was thinking if that kins work like that (example follow)
I had cone in table.
With B&C axis at 0 deg I move tip of tool just to the top of the cone.
Now if I command C=90 degre then machine should move C, Z and X axis to got final destination, with tool tip touching the top of cone but with tool angled 90 degres.
So joints and axes is not just simple connected. (or it is and CAM calculate correct values based on geometry of head)
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16 Jul 2013 21:34 #36710
by andypugh
Yes.
If you want to look at the original 5axkins code (and compile/install it) it is here:
git.linuxcnc.org/gitweb?p=linuxcnc.git;a...57b648cc7b675beb8d82
But I assume that there is a reason it was termed "bogus" and deleted.
If I understand correctly then 5axiskins can handle size of AC head and possibe offsets. But As I don't have actual CAM for that (yet) I assume that this can be done in CAM too.
Yes.
If you want to look at the original 5axkins code (and compile/install it) it is here:
git.linuxcnc.org/gitweb?p=linuxcnc.git;a...57b648cc7b675beb8d82
But I assume that there is a reason it was termed "bogus" and deleted.
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