Support

Bill, thanks for your reponse. Managed to get filaments loaded; I did have to deply an allen key, and be very persuasive. But they are all loaded. But I now struggle to get it to cooperate with my other extruder. I did all the measuring up, and applied the gcode too change. But it never seems to go far enough to be picked up by my own extruder. I am using klipper via the sonic pad, and I could use g1 e100 f100 to visibly push out 100mm. I clearly have not gor my settings right somewhere.

Also, when I do have engagement with my own extruder, I seem unable to get it released to feed back into Chameleon.

I used 40.5 mm as my own Bowden tube distance from my extruder to my hot end. This is the code to calculater gave me.

; Auto generated 3D Chameleon Mk3 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]

M82 ; turn absolute distances for the extruder

; unload extruder {previous_extruder}

G92 E0

; go to holding position to unload the stock extruder

G0 X103.5 Y207 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

M82

{if previous_extruder>-1}

; cool (and size) in 1.8mm tube

G0 E-20 F4000 ; quickly retract the filament to shape it

G0 E-10 F600; slowly allow it to cool

G0 E1 F2000 ; blob elimination

; back to tip size

G0 E-20 F4000 ; quickly retract the filament to shape it

G0 E-10 F600; slowly allow it to cool

G0 E1 F4000 ; blob elimination

G0 E-10 F4000 ; quickly retract the filament to shape it

G0 E1 F4000 ; quickly ram the filament to shape it

G0 E-10 F4000 ; quickly retract the filament to shape it

G0 E1 F4000 ; quickly ram the filament to shape it

; back to 1.8 constriction

G0 E-50 F4000 ; quickly retract the filament to shape it

G0 E-80 F100; slowly allow it to cool

; turn the fan off

M107 ; this printer has the fan in the way, so turn it off

; retract it back out of the extruder

G92 E0

G0 E-40.5 F2000

G92 E0

G0 E-30 F2000

G92 E0

; ok - out of extruder - press button to remove it all the way

G91 ; move to relative mode

M82

; we skipped to here if it was extruder -1

{endif}

; load extruder #{next_extruder}

M117 Loading Tool T{next_extruder}

; press the button to select the new extruder

G0 X3 Y3 F2000 ; press the button

{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 X-3 Y-3 ; back off the button

G4 S15; wait for it to happen ; adjust this time to match the actual tool change time - subtract the time it takes to load for the last 1" into the extruder

G0 E75 F1500 ;      << -------   ADJUST THE E50 VALUE TO STOP IT RIGHT AFTER IT LOADS INTO THE STOCK EXTRUDER (50mm is the default)

;                ADJUST THE F1500 TO MATCH THE SPEED OF THE FILAMENT FROM THE 3D CHAMELEON

;                NOTE: This defaults should work, but you can always tune them to be perfect.

G4 P1500 ;          This is just a half second extra reloading time... just to make sure

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 E40.5 F2000 ; <<<<<----------- EDIT THIS DISTANCE TO FINE TUNE THE FILAMENT LOADING TO STOP BLOBBING OR UNDEREXTRUSION

G92 E0

M83 ; turn relative distances for the extruder

M117 3D Chameleon Tool T{next_extruder}