CNC Router Frequencies



When I was in Oamaru at Parkside Quarry, I had no idea they also owned the largest CNC Router in the country – an Italian made CMM Zeda machine… So of course I recorded it, and one sound caught my ear at the time: when it powered down, most of the whines and harmonics decreased in frequency, but towards the end there was a set of frequencies that went up!
So while doing an RX pass it was very interesting to see the spectrum.

This is the GMM ZEDA 1600 CN2 5 axis CNC Router & Shaper:




Spectrum when switching on:



Spectrum when switching off:





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