Reason for Core One rumbling found (?)
Good morning,
I think I have found the source of the humming noise or, in some cases, high-pitched whirring noise in the X/Y axis bearing.Unfortunately, I don't know whether this issue overlaps with others or whether someone else has already figured it out.Today,
I loosened the four screws that hold the two NEMA steppers in place by half a turn each. I was very surprised to find that the noise had disappeared.
I strongly suspect that the vibrations from the stepper motor are distributed very well throughout the entire frame.
Can anyone confirm or deny this?
RE: Reason for Core One rumbling found (?)
Very interesting. Is the same rumble/rattle you can here in the videos I posted in this thread?
I'll try loosening off the bolts on my Y-Axis Stepper and see if that makes any difference.
RE: Reason for Core One rumbling found (?)
I'll try loosening off the bolts on my Y-Axis Stepper and see if that makes any difference.
I can “reassure” you that this is not the case. The noise in the video does not match the noise I have on the C1.I also have the noise you linked to. These are the balls in the linear bearing.
RE: Reason for Core One rumbling found (?)
Thanks for clarifying.
The rattle/rumble noise I have is definitely not the linear bearing. I do hear that also, but it is more of a higher pitch click. I understand the linear bearing noise is expected?
If the head moves along the Y-axis only (ie. No linear bearing movement), I still hear the rumble, this ruling out the linear bearing.
RE: Reason for Core One rumbling found (?)
The rattle/rumble noise I have is definitely not the linear bearing. I do hear that also, but it is more of a higher pitch click. I understand the linear bearing noise is expected?
If the head moves along the Y-axis only (ie. No linear bearing movement), I still hear the rumble, this ruling out the linear bearing.
Ah, okay, that's what you mean. Yes, I have that too, but it's currently almost drowned out by my whirring, almost screeching noise 😉
,If you have a noise that can only be heard on the Y-axis, you can try listening to the moving parts with a long screwdriver (Phillips or flathead).
Hold it to your ear and place the other end on the component that may be causing the noise.
RE: Reason for Core One rumbling found (?)
Yes, most of the noise is resonance with the metal frame. In my case I loosened and lightly retightened most the screws connecting motors and pulley to the frame and it substantially cut the noise.
RE: Reason for Core One rumbling found (?)
Yes, most of the noise is resonance with the metal frame. In my case I loosened and lightly retightened most the screws connecting motors and pulley to the frame and it substantially cut the noise.
That sounds like the right approach! Thank you for your feedback. I've bought some Teflon washers, which I want to install between the mount and the stepper motor.
RE: Reason for Core One rumbling found (?)
Yes, most of the noise is resonance with the metal frame. In my case I loosened and lightly retightened most the screws connecting motors and pulley to the frame and it substantially cut the noise.
That sounds like the right approach! Thank you for your feedback. I've bought some Teflon washers, which I want to install between the mount and the stepper motor.
Be careful to keep at least one screw grounded to the frame.