Problem- Steppers very loud, sounds like siren on circles

[augustus c]

Hi all, have built my own cnc router and everything seems ok except when cutting circles, the router will make a perfect circle but all three steppers start making a very loud screaming noise, sounds like a siren! this noise is not present on straight lines, never been around a cnc router before the build, so Im not sure if this is normal or not, any info on what this might be?

[ger21]

If the circles are cut correctly, it's probably just normal stepper noise. Can you post a video so we can here the noise?

[hemsworthlad]

Originally Posted by augustus c Hi all, have built my own cnc router and everything seems ok except when cutting circles, the router will make a perfect circle but all three steppers start making a very loud screaming noise, sounds like a siren! this noise is not present on straight lines, never been around a cnc router before the build, so Im not sure if this is normal or not, any info on what this might be?

Are you using Mach 3 if so what version are you using.?

There's been a some chatter over on the mach yahoo pages about certain driver version making a siren noise. Mach's driver doesn't lock the frequency and it fluctuates up n down causeing this siren noise.

[augustus c]

Don't have any means of making video at this time, but siren noise is just like the old 1950's style of police siren, I am using Xylotex driver and Quickstep software, like I said cnc router is preforming great, just the noise has me concerned

[ger21]

If the bigger the circle, the more "siren like" the sound, then it's probably normal.

[LazyMan]

My machine does the same during circles. Very normal though.

[augustus c]

Thanks, it seem, everything is as it should be, circles are round, siren noise not so bad now that I know it's probably normal

[mlabruyere]

Listen to this one.....does it sound like this?

YouTube- Marchant Dice Ltd CNC Ballscrew Kit

YouTube- Marchant Dice Ltd CNC Ballscrew Kit

[dertsap]

Originally Posted by mlabruyere Listen to this one.....does it sound like this? l]

that's pretty typical sound for steppers

edit oops thought that was the original posters vid

[mlabruyere]

Yeah.....that's why I posted it.

When I fired up my first CNC it sounded like it was singing when making arcs. They steppers were pretty small....only 80 in/oz.

My latest sounds a lot like this one....628 in/oz....sounds great to me.

[dertsap]

Originally Posted by mlabruyere When I fired up my first CNC it sounded like it was singing when making arcs. They steppers were pretty small....only 80 in/oz.

my first seup sounded nasty , 50 oz motors with the stepperworld board , it almost sounded like grinding when doing circles . but it was enough to push me further into bigger and better stuff

[augustus c]

Yep! thats the noise mine is making too, just thought it was a bit odd.