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Help on a K1 Max

I am new to 3D Printing and have a K1 Max. I have only been using the Creality Slicer. I am an operations guy and fairly technical. Just new to 3D Printing.

I believe I have the device installed correctly. I am reviewing the instructions from: https://www.3dchameleon.com/instructions I am now trying to get the filament into slots T1-T4 but it doesn't want to see to go through any of the slots. Is there a trick?

18 comments

18 Comments

Alan

Feb 11, 2024

K1 Max owner here. The original tension sliders were too close for me. I printed the +2.00 tension version with 0.25 spacing and I am able to freely insert filament now, except for whichever color is being held by the gears. This also removed the extruder skipping issues I was having, due to the reduced friction. let me know if you need any help with the gcode side of things in Prusa slicer. I spent the last 3 weeks tweaking and finally am getting good reliable mult-color prints on my K1 Max.

Alan

Feb 11, 2024

Replying to

For sure! I plan on making a post soon with more info about my K1 Max setup, hardware and code. There isn't much specific info so I'm hoping that thread can exist as a sort of Wiki for the K1 series. Here is my code with the sections you need to change highlighted. These numbers will be based on your tube lengths and switch placement. My tool-change moves the print head over to the side fan for cooling so it makes the process quicker. It also only goes down to 190, so it's 1:30 for color change instead of 2:40 with default tip shaping. Saves hours when you add up the color swapws

Start G-Code:

SET_FILAMENT_SENSOR SENSOR=filament_sensor ENABLE=0
SET_FILAMENT_SENSOR SENSOR=filament_sensor_2 ENABLE=0

M82 ;absolute extrusion mode
START_PRINT EXTRUDER_TEMP=[first_layer_temperature] BED_TEMP=[first_layer_bed_temperature]

G92 E0

; 3DChameleon Preload Extruder 1
; load filament 1 to extruder
G0 X286 Y293 F4000 ; move to button

; three quick button presses to cancel out any active commands
G0 Y296 F2000 ; press button
G4 P150 ; wait for 150 ms
G0 Y293 F2000 ; unpress button
G4 P150 ; wait for 150 ms

G0 Y296 F2000 ; press button
G4 P150 ; wait for 150 ms
G0 Y293 F2000 ; unpress button
G4 P150 ; wait for 150 ms

G0 Y296 F2000 ; press button
G4 P150 ; wait for 150 ms
G0 Y293 F2000 ; unpress button
G4 P150 ; wait for 150 ms

G0 Y296 F2000 ; press button
G4 P3200 ; wait for 7 pulses
G0 Y293 F2000 ; unpress button
G4 P2000 ; wait for it to home

; select T0
G0 Y296 F2000 ; press button
G4 P550 ; wait for 550 milliseconds
G0 Y293 F2000 ; unpress button
G4 P2000 ; all done

; load T0 for 28 seconds and into extruder
G0 Y296 F2000 ; press button
G4 P18250 ; wait for 10.5 seconds
G0 E80 F1500 ; <<<--- adjust this E value to tune extruder loading
G0 X290 Y280 Z.2 F1000; move to extruders assigned purge line
G92 E0
G0 Y0 E100; purge the extruder.
G4 P200 ; all done


SET_FILAMENT_SENSOR SENSOR=filament_sensor ENABLE=1
SET_FILAMENT_SENSOR SENSOR=filament_sensor_2 ENABLE=1

Tool Change G-Code:

{if previous_extruder>-1}

{if next_extruder!=previous_extruder}

SET_FILAMENT_SENSOR SENSOR=filament_sensor ENABLE=0
SET_FILAMENT_SENSOR SENSOR=filament_sensor_2 ENABLE=0

; Creality K1 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}

G0 E-2 F2400; retract to prevent blobbing

; unload extruder {previous_extruder}
G92 E0
; go to holding position to unload the stock extruder
M83

G92 E0;
G0 E-25 F2000 ; retract a bit, adjust this to tune waste
G90

G0 X295 Y150 F4000 ; move to aux fan COOL DOWN
M106 S255 ; part fan 100%
M106 P2 S255 ; aux fan 100%

M109 S190
G0 24 F1500 ; TIP SHAPING WARM
G0 E-5 F500 ;
G0 E5 F1500 ;
G0 E-1 F500 ;
G0 E1 F1500 ;
G0 E-24 F2000 ;

G90
M106 S0 ; part fan off
M106 P2 S0 ; aux fan off
G0 X286 Y293 F4000 ; MOVE TO BUTTON
M109 S200
G92 E0
G0 E-60 F500 ; RETRACT
G92 E0
M107 ;
G91; relative mode
M104 S[temperature];

G0 Y3 F2000

{if next_extruder==0}
G4 P550 ; 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 F10000

G0 Y3 F2000 ;                                                        UNLOAD
G0 E-80 F1500 ; continue to back out of the extruder
G4 P16750
G0 Y-3
G4 P400

G0 Y3 F2000 ;                                                        LOAD
G4 P18250;
G0 E80 F1500 ; <<<--- adjust this E value to tune extruder loading
G0 Y-3 F2400;
G4 P400

G92 E0

M104 S[temperature];
M106 S[max_fan_speed];

SET_FILAMENT_SENSOR SENSOR=filament_sensor ENABLE=1
SET_FILAMENT_SENSOR SENSOR=filament_sensor_2 ENABLE=1

G90 ; move to absolute mode
M83

{endif}

{endif}

End G-Code:

SET_FILAMENT_SENSOR SENSOR=filament_sensor ENABLE=0
SET_FILAMENT_SENSOR SENSOR=filament_sensor_2 ENABLE=0

G92 E0

G0 E-2 F2400; retract to prevent blobbing

G92 E0
; go to holding position to unload the stock extruder
G0 X286 Y293 F10000 ; <<----- EDIT THIS LINE TO SET THE INITIAL LOCATION OF THE BUTTON

G91 ; move to relative mode
M83

G92 E0;

; back out the filament
G0 E-25 F500 ; retract a bit, adjust this to tune waste

G0 E25 F1500 ;
G0 E-5 F500 ;
G0 E5 F1500 ;
G0 E-1 F500 ;
G0 E1 F1500 ;
G0 E-25 F500 ;
M106 S255
M109 S180; cool down to prevent swelling

G0 E24 F1500 ; last tip dip with cold tip
G0 E-24 F500 ; last tip dip with cold tip

M109 S150; cool down to prevent swelling

M109 S180; ok... go back up in temp so we can move the extruder

G0 E-50 F500 ; back out of the extruder
G92 E0
G0 E-50 F500 ; back out of the extruder
G92 E0
M107 ;

G0 Y3 F2000 ; press button
G4 P2800 ; wait for 6 pulses
G0 Y-3 F2000 ; unpress button
G4 P2000 ; wait for it to cut filament

G92 E0

G0 Y3 F2000 
G0 E-75 F500 ; continue to back out of the extruder
G4 P11500
G0 Y-3
G4 P400

G90
M83
BEEP
END_PRINT

Edited