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Author Topic: What causes stepper motors to decelerate and then accelerate when moved?  (Read 5852 times)

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Offline wade16

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Re: What causes stepper motors to decelerate and then accelerate when moved?
« Reply #10 on: August 06, 2014, 04:49:45 PM »
Where is backlash? I don't see it in general config. The shuttle accel is set on 1
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Offline Hood

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Re: What causes stepper motors to decelerate and then accelerate when moved?
« Reply #11 on: August 06, 2014, 04:52:20 PM »
Config menu then Backlash. You may have to restart Mach for it to take effect.
Hood
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Offline wade16

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Re: What causes stepper motors to decelerate and then accelerate when moved?
« Reply #12 on: August 06, 2014, 04:59:59 PM »
That seems to have fixed the problem. All axis move in fast jog with no hesitation. Thank you very much.
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Offline Hood

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  • 25,835 25,835
  • Carnoustie, Scotland
Re: What causes stepper motors to decelerate and then accelerate when moved?
« Reply #13 on: August 06, 2014, 05:04:31 PM »
If you need the backlash you could reduce the shuttle accel and see if it helps, maybe 0.05 or something. Dont use backlash myself so not sure what the normal settings would be but I would imagine you want it a short time.
Hood
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Offline wade16

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Re: What causes stepper motors to decelerate and then accelerate when moved?
« Reply #14 on: August 06, 2014, 05:07:49 PM »
I will keep that in mind. Thanks.
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