Chinese CNC machine...whatchathink?

[M250cnc]

The only thing to be aware is that is gonna be a noisy machine at full revs

The noise will be coming from the tool spindle hardly any from the stepper motors/drivers.

To cut down the noise you need a water cooled spindle but they tend to be bigger in relation to the motor supplied with that machine so a water cooled spindle will not fit that machine.

Be careful of the shipping cost, the ebay machine looks almost identical and that would cost £746 inc shipping, plus any import taxes

Phil

[Jonathan]

The only thing to be aware is that is gonna be a noisy machine at full revs

The noise will be coming from the tool spindle hardly any from the stepper motors/drivers.

To cut down the noise you need a water cooled spindle but they tend to be bigger in relation to the motor supplied with that machine so a water cooled spindle will not fit that machine.

I agree, brushed motors like that are very noisy. Now I've got the water cooled spindle there's no comparison, however the cutting noise is, of course, still a significant contributor to the noise.

[HankMcSpank]

Maybe it's just the way they've all been recorded, but I'm struck at how much noise the Chinese water cooled spindles still seem to put out in some of the youtube videos folks have uploaded ! (perhaps it's just the microphone being too close to the cutter - but for example - http://www.youtube.com/watch?v=2OZCv...eature=related (2m16 in) ...or maybe the acoustic vibration/whine of the spindle is being amplified by the machine frame?

[ptjw7uk]

In the video it makes the point ' with a lot less noise' Best to sak JohnS as he has one of the spindles.

The noise will vary anyway when its cutting. If its less noise than a router at full tilt ... then its quieter.
If you cut anything at 24000 rpm then its going to make a noise anyway!

peter