You can either offset the Z axes print height in Printer gcode. Or, I use simplify3D, and under the Gcode tab you can adjust the print height by offset value. Also I add in Simplify3D under the first screen under Ozzeing on the right side if you scroll down a Vertical lift amount. I have mine set to 0.3. Then the print head will lift .3mm in the Z position then move then drop back down to the correct printing height.