Some layers are darker than others

[Julian2801 1]

Hey,

 

I dont know why some layers are darker than others on my printed objects.

I use white Ultimaker PLA.

 

The object itself is pretty smooth and the corners as well as you can see in the photos.

 

Maybe It is Z Wobble but I am not sure. Do you have any ideas?

 

 

 

 

 

 

 

[Julian2801 1]

I've checked the height of the object as well and it has the height it should have. I believe it wouldn't be Z Wobble if the model has the desired height. Am I right?

From the looks of it I would say that the darker layers are under-extruded layers.

 

Printing slower and cooler didn't help. The printer doesn't have play on the X/Y axles as well. I'm pretty desperate right now.

 

 

[Framar 38]

What material/color were you printing prior to this print?

[Julian2801 1]

On 1/31/2019 at 3:28 PM, Framar said:

What material/color were you printing prior to this print?

I've only printed with White PLA so far. In the beginning there was a bit of grey PLA inside of the nozzle from the factory test print.