Just how quiet really are the water cooled spindles?

[HankMcSpank]

Thanks, pretty much what I thought, which brings me on to my next though ...acoustic amplification by the CNC frame bed!

BAsically, I'm looking to buy a moving table machine for no other reason than they appear quieter (or ought to be on paper!)...has anyone any real world experience experience and can confirm in a generalize manner?!

My little machine is quiet as can be when jogging about, it's this one...




It's hard to get a sense of scale there....but it's very small (in fact, I'll declare being a bozo, cos my eyes decieved me into thinking they were nema23 motors on the machine when I ordered it ....when it arrived I felt like a giant in legoland's mini cities of the world - the machine is definitely "CNC for 8yr olds" and the steppers on it are relatively asthmatic nema17 @70oz .....big DOH!).

I like the style and erhm 'solidness' of it so I was thinking of upping the ante to a larger sibling, something like this....




ok so being larger, it's likely to resonate/amplify the vibration/spindle noise more ...but I'm hoping that it'll still be tolerable.

The thing is the seller (UK based) says there's very little noise difference between that moving table design above that he sels vs a the moving gantry design he also sells similar to this...




If that's true I'd be gutted at missing the extra bed real estate (I dabble with guitars & could occasionally get a guitar body mounted on the 4030 machine!), but that table looks like an acoustic guitar body placed upside down - a whole load of resonant chamber ...with the strings in play here being the vibrations of the machine!

Confused....decisions, decisions.