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Stepper noise with mesa on new install
- steveb48
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3 years 4 months ago #272971
by steveb48
Replied by steveb48 on topic Stepper noise with mesa on new install
Hmm, I just re-read the spec. Maybe 24 would have been a better choice. Easy test. I have a programable power supply.
www.sherline.com/wp-content/uploads/2018/12/steps_spec.pdf
www.sherline.com/wp-content/uploads/2018/12/steps_spec.pdf
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- PCW
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3 years 4 months ago - 3 years 4 months ago #272972
by PCW
Replied by PCW on topic Stepper noise with mesa on new install
If you get random "thumps" on all moving axis, that is possibly a latency issue.
One thing that may help is to set the DPLL sample time earlier, that is, change:
setp hm2_7i76e.0.dpll.01.timer-us -50
to
setp hm2_7i76e.0.dpll.01.timer-us -200
One thing that may help is to set the DPLL sample time earlier, that is, change:
setp hm2_7i76e.0.dpll.01.timer-us -50
to
setp hm2_7i76e.0.dpll.01.timer-us -200
Last edit: 3 years 4 months ago by PCW.
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3 years 4 months ago #272973
by steveb48
Replied by steveb48 on topic Stepper noise with mesa on new install
I saw that on another thread. Can you remind me where to set that? I assume it's the mesa tool but I don't recall its name.
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3 years 4 months ago #272975
by PCW
Replied by PCW on topic Stepper noise with mesa on new install
Its in your hal file
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3 years 4 months ago #272992
by steveb48
Replied by steveb48 on topic Stepper noise with mesa on new install
Perfect! Smooth as glass. Is there a place for that in pncconf or do I need to re-edit the hal file for each change?
I'll have to look at the initial offset after Home. I'm thinking that may be a cockpit error on my part. All I'm doing is homing the machine and entering g0 x4... Perhaps I'm missing something. I'll look in the morning. Thanks for your help!
I'll have to look at the initial offset after Home. I'm thinking that may be a cockpit error on my part. All I'm doing is homing the machine and entering g0 x4... Perhaps I'm missing something. I'll look in the morning. Thanks for your help!
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