Y axis growling bearing!  

RE: Y axis growling bearing!

I think what you are hearing might be the nozzle clipping the surface of the infill pattern as it crosses the previous layer.

To check:

Is the sound present when printing perimeters or solid layers?

Do you hear it when making Y moves with no print present?

or X?

With the printer off do the axes move smoothly when pushed by hand?

Does changing to a different fill pattern change or stop the sound?

Cheerio,

RE: Y axis growling bearing!

I don't think that it's the nozzle. You can see in the video where I put my finger down on the right side of the bed (where there is only one bearing) and the noise stops (every time).

RE: Y axis growling bearing!

Hmm, tried editing the last and it timed out.

I'll take a look at what you suggested tonight. The plater moves fine by hand with no growling, and I don't always notice the sound when during prints. I'll print something out tonight and change the infill and reply back. 

Thinking about this I don't remember hearing it when the printer is leveling the bed...

RE: Y axis growling bearing!

possibly loose bed attachment countersunk allen screw allowing bed to vibrate on support ?

RE: Y axis growling bearing!

@diem

No noise when moving the bed by hand everything moved smoothly.

I'm running a long print now and while it is printing out the brim on the first layer - very slowly - I can hear a slight growl only when it is moving both in the x and y directions at the same time. A straight Y move seems to be fine.

Another thing I noticed is that I printed that piece in the video using the .2mm FAST setting for the PETG filament. That uses the Grid infill pattern I think and it's one of the first times I opted for a FAST setting over quality. The print I'm running now is set to quality - we'll see if it is quieter.

RE: Y axis growling bearing!

@honegod

I'll definitely check those screws when this print is done!

RE: Y axis growling bearing!

I changed the fill pattern to gyroid and the growling lessened. I also tightened the screws on the bed although they weren't really loose. In general the print is a lot quieter, but I still hear it on occasion.

I took another look at the assembly manual and I'm going to check the location of the ball bearings to make sure they are oriented correctly on the rods.