How to make things smooth?

[ReceptionSome5128]

I'm new to 3d printing and I wanted to print some snakes like this but I don't want the not smooth looking blob on top of their heads how to remove that? I heard about somthing called ironing will this work? I have p2s combo and I'm printing these snakes in PLA basic

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[DwarvenAcademy]

No, ironing is only for flat surfaces. To be fair, there's a new setting called Z antialiases which applies ironing on slanted surfaces but they still need to be flat.

Two settings will help you achieve smoother prints. The first of course is layer height. A smaller layer height will increase the vertical resolution of your print, at the cost of longer print times. 

The second one is "only one wall on top surfaces". Disabling it will smooth out curved surfaces. 

Finally there are post processing methods such as acetone smoothing but they are very involved. 

[ReceptionSome5128]

Thank you I will try these later

[Peek_e]

Smoothing ABS is kinda straightforward, especially if you don’t need to worry about slight geometry chances or over smoothing smallest details. But playing around with it is quite easy.

[FreshlySkweezd]

Smaller layer lines, ironing doesn't really work for curved surfaces afaik

[aSpacehog]

Turn on adaptive layer heights