Why does my Toolchange not work?

AS-3D Druck

Hey Guys,

i've found a Toolchange Script for a 2 Extruder to 1 Hotend Solution and tweaked it a bit that it works better on my Printer. (Only a few Delays and extrusion lenght)
If i use that gcode it don't select T1 (if we are first on T0).
It only uses 1 Extruder.

Here is it:

[[language]]
T[old_tool] ; use the current Tool
G92E0 ; zero extrusion lenght
G1 E-10 F2800 ; retract the filament from melting zone
G92E0 ; zero extrusion lenght
G1 X20 Y20 F3000 ;move the hotend to bed edges or corners to finish the filament swap job. normally over the prim pillar is ideal
G4 S20 ;wait for X seconds to reduce the filament stringing
G1 E-112 F2800 ; retract the filament cross the intersection back to the its own tube waiting for the Gcode summon. distance is depending on your hardware setup
G92E0 ; zero extrusion lenght

M400

T[new_tool] ; use the next Tool
G92 E0 ; zero extrusion lenght
G1 E45 F1500 ; extrude 45mm in to the Hotend from the Splitter
G4 S2 wait 2 Seconds
G1 E15 F1500 ; extrude 15mm and pass the Hotend
G4 S1 ; wait 1 Second
G1 E62 F1500 ;extrude the new selected filament to the nozzle 
G92 E0 ; zero extrusion lenght

M400

Any Idea what

AS-3D Druck

I got the now.
The Toolchange needs to be sliced and cann not be executed by a Macro.

fma

You can also use tpre_.g and tpost_.g (and tfree_.g) macros (where _ is the num of the tool) to execute G-Codes before a tool is selected, after it is selected, and when it is released.