Idex dual material printing tool setup?

[gamecrazeddork]

Hello ,

I need a little assistance with setting up my printer to print multi-material between two separate print heads. I tried to follow this link (https://docs.duet3d.com/User_manual/Machine_configuration/Configuration_IDEX) ,but have ran into a question/difficulty setting this up.

Am I correct to assume that I have to setup a tool to engage both print heads correct (like the duplication/Mirror mode)?

Below is the tool that I have started for this:
; ''' Create a tool that prints an object using Multi-Material'''
;M563 P4 D0:1 H1:2 X0:3 F0:2 S"Multi-Material" ; tool 2 uses both extruders, hot end heaters and fans, and maps X to both X and U
;G10 P4 X150 Y0 U-150 Z-0.4 S0 R0 ; set tool offsets and temperatures
;M567 P4 E1:1 ; set mix ratio 100% on both extruders

For this tool I was setting up a tfree4, tpost4, and tpre4 config file for my duet 3, would this be the correct thing to do?

I'm just trying to get this setup so I can start to print with PVA support material on my machine.

[deckingman]

@gamecrazeddork I'm a bit confused by what it is that you want to do. A tool such as the one you have described would extrude filament from both print heads at the same time whenever a G1 En move is encountered. To print a part with support material, you need two separate tools, each one dedicated to an individual filament.

[o_lampe]

@gamecrazeddork
Yes, what he said and you have to setup your slicer accordingly. It needs to know which parts of the object are printed with tool0 or tool1.