Chinese CNC machine...whatchathink?

[John S]

No my spindle is the air cooled one, not water.
These are not as quiet as the water ones, running at 12,000 they are quiet enough to not be upsetting, flat out at 24,000 they do make a bit of noise, about the same as a kress at number 1 or 2 on the thumb wheel.

I have seen the water cooled ones and they are quiet.

I think a lot of the noise on these video's is picking noise up you don't hear. I have a video here that was filmed out in the desert in Oman and it's unwatchable because of the noise of the wind and you can't hear the conversation but when we were filming it we didn't notice any wind and were talking normally ??

[HankMcSpank]

Thanks guys....well I thought I had this one sorted, but it's a fair point about not being able to mount a VFD water cooled spindle, so that choice above is now in doubt. There's another good, solid little machine here....

http://sites.google.com/site/cncdiyorg/3018

but it's a little on the small side & takes a while for them to put together(a bit like ordering a sofa from DFS!), not to mention a lot more expensive, but it'll mill steel, aluminium...the whole gammut!

[Jonathan]

I have seen the water cooled ones and they are quiet.

I can confirm that they are very quiet. My 2.2kW one makes less noise than the Sieg C3 lathe when the lathe is at 3000rpm and spindle at 24000rpm. 'Chip' on this forum will also confirm that the spindle itself is much quieter than a router.

When I had the router running I'd wear ear defenders - not any more!

It's the cutting noise that's the issue since it's louder than the spindle, though if you're just making PCBs the cutting noise is small.