Ender 3 v2|Micro Swiss NG

1. Are you sure your 3DChameleon is operating in Mode 3?

I think it is. If I use the switch manually and do 7 pulses then I can do 1, 2, 3, or 4 pulses to select the relevant extruder then can pulse to load and unload.

2. Yes I was manually able to move all 4 filaments

3. I will try to disconnect the Y adapter and see if I can move the filament

4. I did not manually do 7 pulses at the start I did not know I had to do that. I will give that a try.

So I take it from what you say in question 3 that the GCODE will unlock the 3d chameleon extruder for the selected filament so that the Micro Swiss NG extruder takes over driving the filament?

Thank You for the fast response

I made sure to press 7 times and found that the filament is NOT being held locked by the 3d chameleon.

The issue seems to be that the filaments are colliding in the y adapter.

There are a couple of things I can think of 1) increase the E value to back out further in "G0 E-74 F2000"

Increase the corresponding E value for the feed to the MS extruder. But I can't find that one

Is this the command to load? G0 E25 F1500; <<<--- adjust this E value to tune extruder loading

Should I increase that value to be 74 +

BTW: 74 is the distance from the MS extruder gear to the hot end

Should I start with T0 loaded all the way to the Hot End?

Here is the full GCODE I currently have

; Auto generated 3D Chameleon Mk3 Mode 3 Tool Change GCode for PrusaSlicer

; - 3D Chameleon Mk3 Tool T{next_extruder} -

;begin switch from extruder {previous_extruder} to extruder #{next_extruder}

M117 Unloading Tool T[previous_extruder]

M83 ; turn relative distances for the extruder

; unload extruder {previous_extruder}

G92 E0

; go to holding position to unload the stock extruder

G0 Y211 F2000 ; <<----- EDIT THIS LINE TO SET THE INITIAL LOCATION OF THE BUTTON

; if this is the first load, then don't unload

G91 ; move to relative mode

M83

; load extruder #{next_extruder}

M117 Loading Tool T{next_extruder}

{if previous_extruder>-1}

; back out the filament for cutting

G0 E-20 F500 ; retract a bit, adjust this to tune waste

; <<<< insert mechanical cutter code here! >>>>

;<<< Start Of Tip Shaping- Remove If No Cutter! >>>

;<<< End Of Tip Shaping >>>

; we skipped to here if it was extruder -1

{endif}

{if previous_extruder>-1}

; retract it back out of the extruder

G92 E0

G0 E-74 F2000 ; <<<<------- This is the value I think I need to increase

G92 E0

G0 E-30 F2000 ; <<<---- if mechanical cutter, change to a positive value of at least 5mm

G92 E0

; ok - out of extruder - press button to remove it all the way IS THERE SOMETHING MISSING HERE WHERE IS THE COMMAND to Remove all the way?

G91 ; move to relative mode

M82

; we skipped to here if it was extruder -1

{endif}

; press the button to select the new extruder

G0 Y3 F2000

{if next_extruder==0}

G4 P500 ; dwell for .5 seconds - adjust this to match your machines single pulse time

{endif}

{if next_extruder==1}

G4 P1000 ; dwell for 1.0 seconds - adjust this to match your machines two pulse time

{endif}

{if next_extruder==2}

G4 P1500 ; dwell for 1.5 seconds - adjust this to match your machines three pulse time

{endif}

{if next_extruder==3}

G4 P2000 ; dwell for 2.0 seconds - adjust this to match your machines four pulse time

{endif}

G0 Y-3

G4 P2000 ; wait for cutter to work

; ok command selected - back out filament if needed after cut

{if previous_extruder>-1}

G0 Y3 F2000 ;

G4 P0 ;

G0 Y-3;

G4 P400

{endif}

G0 Y3 F2000 ;

G4 P0 ;

G0 E25 F1500; <<<--- adjust this E value to tune extruder loading

G0 Y-3;

G4 P400

G92 E0

G90 ; move back to absolute mode

M83 ; but make sure the extruder stays in relative

; reload filament all the way into extruder

G92 E0

G0 E49 F2000 ; <<<<<----------- EDIT THIS DISTANCE TO FINE TUNE THE FILAMENT LOADING TO STOP BLOBBING OR UNDEREXTRUSION

G92 E0

M83 ; turn relative distances for the extruder

M302 S180 ; prevent cold extrusion

M117 3D Chameleon Tool T{next_extruder}