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Dataris Remiel
Apr 3, 2019

High Pitched Whining

Finally got this assembled and working on dialing in the test print. There were no problems with homing and bed leveling, etc, and no noise manually moving the various axis around. However, now that I'm trying to print the Benchy Boat, after the first layer is done and the dual Z-motors fire up to move to the next layer, there's a constant high pitched whining sound. What steps can be taken to mitigate this?

3 comments
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Makertech
Apr 4, 2019

It's likely coming from the printer blower fans being secured on too tight. Try loosening the nuts slightly to see if things improve.

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Dataris Remiel
Apr 5, 2019

While the fans make their own noise which lessened when I loosened the bolts, the high pitched constant tone I originally mentioned is still there, and starts the moment the Z-motors spin up during the Benchy print, before the blower fans started making their own cacophony of whines.

0
Makertech
Apr 14, 2019

You may have too much current going to the z-motors, whilst powered up, move the z-motor so it starts whining. Then with the included ceramic screw driver *carefully* turn the trimpot on the stepper driver counter-clockwise to reduce the current, the whining should also lessen. Check again that you do still however have enough current being supplied to move the z-axis.

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