Roughness of the filament

[gowthamadithya 0]

Hi guys. I'm new to 3D printing. I just bought an ultimaker 2 extended+. As my filament goes into the feeder it tends to get rough like a scaly appearance instead of how smooth it was previously. Could I please have some help here if there is anything I should be worried about or to avoid it? Thank you guys in advance.

[DidierKlein 729]

Hi and welcome

This is caused by the knurled wheel in the feeder, it has to grip the filament to make it move so it will always leave some marks on the filament.

As long as it doesn't get flattened or grinded you should be perfectly fine.

Do you have any issues with the printer?

[gowthamadithya 0]

I don't seem to have a problem with the printer though thanks a lot appreciate the reply