Mini wannabe datron build
- rodw
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20 Jul 2026 07:04 #347862
by rodw
forum.linuxcnc.org/ethercat/45336-etherc...-how-to-step-by-step
follow the updated process and also the added Hal file command mentioned in response to your other post
Replied by rodw on topic Mini wannabe datron build
there have been big changes.4th axis!
So, in redoing linuxcnc and adding this new leadshine L6 servo, ethercat is not totally ferked. I am getting random limit and joint errors during program runs, during jogging, sitting idle. I managed to see one of these errors with the scope and it is a one frame spike of ferror that's seemingly infinite value.
What the heck is going on. Ill upload my config files shortly. Every camera cut in the video is a random joint error on a random axis.
I have the jitter fix build, and not a whooole lot else really changed from the last build. HALP!
forum.linuxcnc.org/ethercat/45336-etherc...-how-to-step-by-step
follow the updated process and also the added Hal file command mentioned in response to your other post
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- ihavenofish
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20 Jul 2026 07:51 #347864
by ihavenofish
Replied by ihavenofish on topic Mini wannabe datron build
thanks, ill look it all over in the morning.
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20 Jul 2026 09:09 #347867
by ihavenofish
Replied by ihavenofish on topic Mini wannabe datron build
Alright, the 4th axis joint error inverting is 32 bit count roll over.
I am getting confusing info in my searches, but there seems like there is a hall function to manage this? Anyone have some insight as how you implement it?
thanks!
I am getting confusing info in my searches, but there seems like there is a hall function to manage this? Anyone have some insight as how you implement it?
thanks!
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20 Jul 2026 09:37 #347868
by rodw
Replied by rodw on topic Mini wannabe datron build
I'm not sure on this but I thought there was a change to support 64 bit floats for instanceslike this that managed the wrap but I have no experience. There is a big body of work pending in master branch around 64 bit pins. Message Grandixximo on Discord.
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21 Jul 2026 02:29 #347897
by ihavenofish
Replied by ihavenofish on topic Mini wannabe datron build
boink.
I think everything works now. got help with the correct updates on the ethercat patches/version. I geared down the 4th axis, so it can do 1600 turns now. not a proper fix, but it will get me cutting today and we can figure out a more correct rollover later.
As always, thanks for all the help.
I think everything works now. got help with the correct updates on the ethercat patches/version. I geared down the 4th axis, so it can do 1600 turns now. not a proper fix, but it will get me cutting today and we can figure out a more correct rollover later.
As always, thanks for all the help.
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