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Excessive stepper motor vibration Prusa i3 Mk3S  

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Dan Bloom
(@dan-bloom)
New Member
Excessive stepper motor vibration Prusa i3 Mk3S

I've seen a few conversations about this, but none has really answered the question.  I've had many 3d printers, and this is the second Prusa I've owned.  I have an original Mk3 that is nearly silent when operating at any speed.  The newer Mk3S I have has very noisy steppers, most notably the x and y axes.  Can we just cut to the chase and inform us all if this is due to 1.) Lower quality motors? 2.) Change in motor driver? 3.) Higher current settings for the motors? 4.) Combination of one or more of the aforementioned?  I'd like to replace the motors if that will remedy the noise and vibration. If there is another solution (firmware?), that would be great as well.

Thanks!

Posted : 08/08/2022 7:56 pm
Dan Bloom
(@dan-bloom)
New Member
Topic starter answered:
RE: Excessive stepper motor vibration Prusa i3 Mk3S

This noise and vibration has been eliminated by swapping the stock Y axis motor for a Kysan 1124090-8437.  I imagine this might also improve sidewall surface finish.  I plan on swapping the X axis motor as well, as it also has more noise than previous versions of Mk3's I've owned and other printers I've built using Einsy and Trinamic drivers.

Posted : 10/08/2022 6:07 pm
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