Hi, is it possible to have the Z axis raised first when i am done with a job ?

My code from cam states:

G28 G90 Z0
G28 X0 Y0
M30

And all 3 axis moves at the same time. What i would like it that the Z axis moves to home first, Then X/Y axis combined.


I also would like to know if it is possible to change the G28 location ? As my home location is at the front, And when i use my plexi shield, i dont want the spindle to rush forward and crash into it.

From the sound of it, you may want to modify your Cam Post Processor.    G28 G91 Z0 is what you need to be using to send your Z Home. 
As far as having a new home position for your Y, try using a G53 Y(POS).

Here is a great video to watch, provided by Haas automation. 

https://www.youtube.com/watch?v=Rd-h0YA9IzQ