Troubleshooting vibration/resonance

Hi guys, I'm new here. I've been printing for about a year now with my Ender 3 Pro, but now I'm building a Hypercube Evolution (HEVO). It is mostly put together but I'm having trouble pin pointing some vibrations.

Please see this video: [www.youtube.com] and notice the repeating sound pattern. The pattern does sync with the circle that is being printed, but does not correspond to any motor/idler.

When the belts where not installed yet, I was able to move X/Y with great ease. I guess I'm just looking for suggestions about what to investigate.

Thanks to anyone who can provide some ideas.

... it sounds like XY-interferencing while performing "Bresenham" -- it's related to the same sectors of the 4 quadrants, where the step-relations between X- and Y-steps match a speed factor.

To reduce this you can rise the microstepping or add dampers ...

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Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

OK thanks, that's interesting. I've set microstepping to 256 which is the max and it did not help, so that would leave dampeners as my only recourse.

BTW is there a calibration item out there to print specifically to test for this XY-interferencing?

... the circle is a pretty good testing item - the bigger the better ... and with different speeds ...

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Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]