Weird sound when traveling y axis

Need a little help. I new to cnc an just got my Shapeoko 3 xxl put together an made its first cut. Everything went great I just notice a sound like someone was strumming guitar strings really slow every time it was making a cutting pass and traveling back an forth on the y axis. Can’t quite pin point where it’s coming from an if it is even normal.

Pictures and/or video would help. Sounds like belt tension initially but could be a-lot of things.

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Most likely just the sounds the motors make.
Set up a circular profile cut and do an aircut (Z set high, router off) and you’ll hear the wonderful sounds of the steppers. All normal.

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I will give that a try an see what happens. Take video if it continues. Thanks for the help

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