Simplify3d Top Layer. You may have more than 3 or only 2 all depending on your model. Therefore if you set your settings correctly in process 1 subsequently added processes will mirror those settings.
This guide is a great place to start if you are trying to improve the quality of your 3d printed parts. Printing some cardinals i made a mistake and ended up with poor looking top layers for my orange beaks and feet. In simplify3d you will find start points settings in the layer tab of your process settings.
We have compiled an extensive list of the most common 3d printing issues along with the software settings that you can use to solve them.
Layer width percentage works opposite. Process settings cooling tab. There are three options for random fastest or specific location as shown below. If the layers do not bond together well enough the final part may split or separate.