Z zuite alters 3d modell

I designed a model in Designspark. You can se the pic on the right side. It’s a perfect round circle

But when i add it to Z-suite the circle is now with severall edges and not perfectly round anymore. What can i do to solve this??

And also when printing it it will become with the edges and not like the original CAD.

When you are exporting to .STL file, change your export settings, there should be option called resolution or quality, you probably set it to low, change to higher.

Res you are correct. I fojnd that setting and it helped. Thx!