Quote Originally Posted by Jonathan View Post
The actual cutting noise is definately much greater than the spindle itself.
But when most of your material is only 1.6mm FR4, that doesn't factor in much (I jog about a lot more than cut!)

Thanks for the link to your video....as mentioned earlier, it's difficult to assess from a youtube video as the mic positioning/sensitivity/AGC circuit can really affect the end result ...but I'd say that only 6,000RPM would be tolerable ...it seems crazy to have a VFD setup in my instance (I guess I could always flog it on to bring the total cost of the machine down). Either that or I can feel an acoustic shroud coming on!

PS Loving your other video...

http://www.youtube.com/user/Jonbliss.../2/k3MG7ww49A8

...if the BBC Radiophonic Workshop lose their Tardis samples, they'll be knocking at your door!