Extruder change - like CNC multi tool

Hi,

Recently I make dual extruder delta, but after few attempts to stop effector tilting one nozzle up - another down and vice versa when printing I deside to make it changing tools like CNC machine or something like spider tilt on SpiderBot, but different since their is pat pending as they told so.

I don't like mixing nozzle.

Know how to move the printer leave one tool and take another and vice versa.

My tought is how to change the printer to execute the script 1 for E0 and script 2 for E1 separate at time, I tried to add them in "Tool change G-code" in printer settings, but I need to let know the printer run one change at time, now is leaving tool 1, pick tool 2, leave tool 2 and again pick tool 1.
I need to leave tool 1 and take tool 2 then go print layer and after change to tool 1 again, print layer and soo on.
I was thinking to add them as separate skripts but how to execute them one script at time?

Link to my extruder pics: [www.dropbox.com]


Here is my sample moves:

M117 E0 Pick Up
g0 f8000 x0 y0 z514.50
g0 f8000 x102 y12 z514.50
g0 f8000 x102 y12 z480.50
g0 f8000 x0 y0 z480.50
g0 f8000 x-102 y12 z480.50
g0 f8000 x-102 y12 z514.50
g0 f8000 x0 y0 z514.50

M117 E1 Pick Up
g0 f8000 x0 y0 z514.50
g0 f8000 x-102 y12 z514.50
g0 f8000 x-102 y12 z480.50
g0 f8000 x0 y0 z480.50
g0 f8000 x102 y12 z480.50
g0 f8000 x102 y12 z514.50
g0 f8000 x0 y0 z514.50