1. Configuring LinuxCNC
  3. Advanced Configuration
  5. Following Error When Homing

Following Error When Homing

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04 Nov 2022 19:31 #255948 by PCW
Replied by PCW on topic Following Error When Homing
Could you plot the encoder position instead of joint feedback
they are supposedly the same but just want to make sure

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04 Nov 2022 19:38 #255950 by turbostew
Replied by turbostew on topic Following Error When Homing
I don't understand why you expect them to be zero..... Is seems they would settle at "HOME" after homing. That is what the DRO reads.... is the home offset added downstream to an expected zero joint cmd and fb? I want to understand the inner workings better....

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04 Nov 2022 19:39 #255951 by turbostew
Replied by turbostew on topic Following Error When Homing
I will plot, BTW, thank you so much.

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04 Nov 2022 19:40 #255952 by PCW
Replied by PCW on topic Following Error When Homing
The encoder feedback is zeroed at index
the axis has an offset but not the joint (or encoder position)

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04 Nov 2022 19:45 - 04 Nov 2022 19:45 #255954 by turbostew
Replied by turbostew on topic Following Error When Homing
According to HAL they are the same..
net y-pos-fb <= hm2_7i92.0.encoder.01.position
net y-pos-fb => pid.y.feedback
net y-pos-fb => joint.1.motor-pos-fb
Last edit: 04 Nov 2022 19:45 by turbostew.

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04 Nov 2022 19:49 - 04 Nov 2022 20:08 #255955 by turbostew
Replied by turbostew on topic Following Error When Homing
  so enc pos and joint posFb are different.....  
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Last edit: 04 Nov 2022 20:08 by turbostew.

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04 Nov 2022 20:28 #255958 by PCW
Replied by PCW on topic Following Error When Homing
Yeah, for the same reason, can you plot the encoder index enable rather than joint index enable?
The following user(s) said Thank You: turbostew

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04 Nov 2022 20:41 #255960 by turbostew
Replied by turbostew on topic Following Error When Homing
with enc index enable.... 
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04 Nov 2022 21:21 #255964 by PCW
Replied by PCW on topic Following Error When Homing
OK that is an actual  bug, it should look like this:

 

What version of LinuxCNC are you running?

 
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04 Nov 2022 21:57 #255970 by turbostew
Replied by turbostew on topic Following Error When Homing
LinuxCNC Version: 2.9.0-pre0-5944-gf81ec6a9e

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  1. Configuring LinuxCNC
  3. Advanced Configuration
  5. Following Error When Homing
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