Hi,
A question to all 3D printer owners here. I requested a sample from a famous brand and I received this :

IMAG0276.jpgIMAG0277.jpg

Now, as written in the letter in attachment, the print parameters are quite explicit : time was of the essence. The total print time was 22min, and the print layer thickness 0,25mm.

The lateral surfaces of the bolt are quite OK, but is it possible to obtain a smoother finish that the "M" face where you can actually see the tool path ? What is this representative of ? Large extrusion nozzle ?

I'd be grateful for your interpretations.