I'm completely new to 3D printing. I'm slicing my first model and noticed something I am not sure I should be concerned about or not. I'm using a .06mm layer thickness, and my model is 5.40mm tall. When Cura slices it, preview says it will be 86 layers. 5.4/.06 equals 90. My concern is the model is made up a .06mm tall piece, stacked 90 times with a 2 degree rotation per stack. A screw of sorts. IF the preview is supposed to accurately show the slices then its missing 4.
Is this a normal slicing thing that happens?
OR
Is it an issue?
OR
Is there possibly a setting I'm missing that it is not following scale exactly in some way?
Thanks for any education and/or help.