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Aciera wrote:

You would need to add the 'skew-y' pin and the corrective terms to the forward and inverse kinematic models of the xyzac-trt kins.

need to add the 'skew-y' pin 
This I understand.

corrective terms to the forward and inverse kinematic models of the xyzac-trt kins.
This is hard for me , not understand.
Now I open .hal of xyzbc and i add 

loadrt skewkins
before line
loadrt xyzbc-trt-kins sparm=identityfirst 

try to run linuxcnc and error  :
<commandline>:0: Pin 'motion.switchkins-type' does not exist
INI file HAL command net :kinstype-select <= motion.analog-out-03 => motion.switchkins-type failed.

Could you please guide me? I am ready to learn it

Thank you,
Asis

 

I need to build linuxcnc in buildroot, is there any reference document?

1. This makes no sense in your custom mcode as the file needs to be executable in the first place
2. comment out those 3 lines in your hal file, start your config and use the 'show halconfiguration' tool to check for the correct pin descriptor.

Good to hear, now I can focus on using the machine rather than figuring out a configuration I setup five or six years ago

You would need to add the 'skew-y' pin and the corrective terms to the forward and inverse kinematic models of the xyzac-trt kins.

I wonder what Grotius did that can have such implications. After all it wasn't long ago we used to download and compile the ethercat master ourselves when we needed it.

Anyways, I have installed ethercat from repositories a few times the last few months and always ran into this with the signing and expired key. And the last time on 2.9.3 iso the ecat.sh didn't solve it. Can we have a pointer in the first sticky to the third sticky? I had a hard time finding the ecat.sh script to start with.

The ecat.sh script, admittedly I may have screwed some things up, did add a duplicate entry in /etc/apt/sources.d. The original was call ScienceLab-something. I removed that one. Then there was the question of where the new downloaded key went. Kind if forgotten the details but there became duplicate keys and one had to be removed.

In the end I wonder if it isn't easier to just remove the signed-by entry in the sources file. So now I only have this in the igvh.sources file

Moving forward a bit, this time the Z-axis. 
The profile turned out to be bent, I had to level the plane for the rails.

 

When machining, some of the clearances were very tight.

 
 

But it went well, plus another part ready to go.

 
 
 

I could not locate the video, you are refering to.

"Trying to get more info" and ending up having to create it, I personally would shy away from.