Rogh looking print- what to fix?

[natet9 0]

I've tried reducing my print speed and increasing the heat but my print still looks very rough. Ideally the whole piece would look like that smooth area a few inches below the top. Any suggestions?

[DidierKlein 723]

Hi and welcome,

It looks like underextrusion to me.

What are your print settings? Material used? Temperatures?

Some setting could be wrong, or something in the printer causing underextrusion

What printer is this?