Simplify3D User Forum

I have been printing with S3D for about a month and life was good. Now all of a sudden the Z is not correct. The parts get to tall. Sometimes by a lot sometimes by a little. doesn't seem consistent.
I have been resorting to slice in Cura then print with S3E and everything works fine that way.
I have checked every tab and i see no where that i could change the Z steps. has anybody had a issue of this kind or a suggestion of what to change to bring the Z back to normal.

Thanks

It's strange that everything would go from working to not-working without anything being changed. What kind of printer do you have?

Why don't you look at the gcode and see if the Z-coordinates at the end of the file are correct