Stepper tests ok in stepconf but growls when using
- shortcircuit48
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10 Nov 2020 14:04 #188876
by shortcircuit48
Stepper tests ok in stepconf but growls when using was created by shortcircuit48
I think I am missing something obvious but cant see it.
I have set up my X axis using config and can test the axis movement which works smoothly although will need calibration, I move on and save the file. When I open up machine controller to test again and jog X the stepper now moves very slowly and growls.
Any help much appreciated.
I have set up my X axis using config and can test the axis movement which works smoothly although will need calibration, I move on and save the file. When I open up machine controller to test again and jog X the stepper now moves very slowly and growls.
Any help much appreciated.
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10 Nov 2020 14:05 #188877
by andypugh
Replied by andypugh on topic Stepper tests ok in stepconf but growls when using
Is the drive enable pin wired? Possibly that is connected to the wrong output.
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10 Nov 2020 14:36 #188881
by shortcircuit48
Replied by shortcircuit48 on topic Stepper tests ok in stepconf but growls when using
Thanks for reply
I thought about that overnight but did nothing. I have now connected and it make no difference to which terminal. I am confused as to why it tests ok on stepconf but not when running
I thought about that overnight but did nothing. I have now connected and it make no difference to which terminal. I am confused as to why it tests ok on stepconf but not when running
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10 Nov 2020 14:44 #188882
by andypugh
Replied by andypugh on topic Stepper tests ok in stepconf but growls when using
We have seen this before, and it is often the drive enable (as the stepconf test does not toggle the enable).
In general there is no point wiring the enable pin on stepper drives, by the way.
Does it growl only when jogging, or also on G0 and G1 moves?
In general there is no point wiring the enable pin on stepper drives, by the way.
Does it growl only when jogging, or also on G0 and G1 moves?
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- shortcircuit48
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10 Nov 2020 14:57 #188884
by shortcircuit48
Replied by shortcircuit48 on topic Stepper tests ok in stepconf but growls when using
Obviously related but in order to run a G0 move I had to home the machine which I was not able to do as limit switches not fitted. Have now disabled switches and that appears to have resolved problem.
Thanks for your help
Thanks for your help
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10 Nov 2020 18:01 #188898
by andypugh
Replied by andypugh on topic Stepper tests ok in stepconf but growls when using
That suggests a miss-match between the joint settings and the matching axis settings.
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10 Nov 2020 19:42 #188905
by shortcircuit48
Replied by shortcircuit48 on topic Stepper tests ok in stepconf but growls when using
Afraid this does not mean much to me. I assume you mean the stepper settings in stepconf should match the settings on the TB6600 driver?
I will stab about and try various and see what happens.
Thanks again.
I will stab about and try various and see what happens.
Thanks again.
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- tommylight
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10 Nov 2020 20:45 #188912
by tommylight
Stepper motors do vibrate a lot, especially if the drive is set to full step mode and running at low speed they will be jumping all over the tabletop. Set the microstepping on the drives to /4 or /8 at least so the motion is much smoother.
Replied by tommylight on topic Stepper tests ok in stepconf but growls when using
That seems pretty much like normal behaviour, in stepconf you are testing the max speed while in LinuxCNC it is using the speed set by the "jog speed" button, so try to set the jog speed button to max and jog around, it should have the same sound as in stepconf.When I open up machine controller to test again and jog X the stepper now moves very slowly and growls.
Stepper motors do vibrate a lot, especially if the drive is set to full step mode and running at low speed they will be jumping all over the tabletop. Set the microstepping on the drives to /4 or /8 at least so the motion is much smoother.
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