top of page

To test this feature, visit your live site.

MK4 code on MK3

I'm moving my MK3 to a different machine and I need to configure the new setup. I put the new numbers into the 4 code generator and the code is causing the switch to be pressed but not released.

Will the 4 code work with the 3 device?

4 comments

Like

4 Comments

Latenite

Apr 05

Thanks for the help. Moving back a couple more mm off the button solved the first problem. I need to reconfigure all my P-times to get the motor switch timing.

Another question-- at the start of the button code, there are three quick presses. What are those presses for, and are they supposed to be long enough to get the filament motor to cycle one time? I've reviewed the video, but I can't tell for sure the specific details.

Like

Mar 30

You're only moving 1mm to engage and disengage the switch. Our gcode generator (and the recommended distance) is 3mm. I don't know of any switches that will work with just 1mm of motion.

Bill

Like

Mar 30

Please post your code. The Mk4 is identical in function to the Mk3 except for an extra 2 second pause for the Mk3 Mode 3 code. There is no Mode 2 in the Mk4.

Bill

Like

Latenite

Mar 30

Replying to

I followed Chris's Basement part 3 to reconfigure. The first block is the Start G code and the second is the Tool Change G code. I don't think I'm getting to the Tool Change at this point.

Start:

G90 ; use absolute coordinates

M83 ; extruder relative mode

M104 S{is_nil(idle_temperature[0]) ? 150 : idle_temperature[0]} ; set temporary nozzle temp to prevent oozing during homing

M140 S{first_layer_bed_temperature[0]} ; set final bed temp

G4 S30 ; allow partial nozzle warmup

G28 ; home all axis

G1 Z50 F240

G1 X2.0 Y10 F3000

M104 S{first_layer_temperature[0]} ; set final nozzle temp

M190 S{first_layer_bed_temperature[0]} ; wait for bed temp to stabilize

M109 S{first_layer_temperature[0]} ; wait for nozzle temp to stabilize

G1 Z0.28 F240

G92 E0

G90

M83

G92 E0 ; Extruder Step Count

G0 X0 Y194 F2000 ; Move to button

G0 X0 Y195 F2000 ; Press Button

G4 P150 ; Wait 150ms

G0 X0 Y194 F2000 ; Move to button

G4 P150 ; Wait 150ms

G0 X0 Y195 F2000 ; Press Button

G4 P150 ; Wait 150ms

G0 X0 Y194 F2000 ; Move to button

G4 P150 ; Wait 150ms

G0 X0 Y195 F2000 ; Press Button

G4 P150 ; Wait 150ms

G0 X0 Y194 F2000 ; Move to button

G4 P150 ; Wait 150ms

G0 X0 Y195 F2000 ; Press Button

G4 P32000 ; Wait 7 Pulses

G0 X0 Y194 F2000 ; Move to button

G4 P5000 ; Wait 5 Seconds

Tool

; Auto generated 3D Chameleon Mk4 Tool Change GCode for PrusaSlicer

; - 3D Chameleon Mk4 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 Y192 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- Not Needed If You Have A 3DClippy Filament Cutter! >>>

M109 R180; cool down to prevent swelling

M302 S0 ; enable cold extrusion

M106 S255

G0 E20 F1500 ;

G0 E-5 F500 ;

M109 R165; cool down to prevent swelling

G0 E5 F1500 ;

G0 E-1 F500 ;

M109 R155; cool down to prevent swelling

G0 E1 F1500 ;

G0 E-25 F500 ;

M109 R150; cool down to prevent swelling

G0 E24 F1500 ; last tip dip with cold tip

G0 E-24 ; last tip dip with cold tip

M109 R180; ok... go back up in temp so we can move the extruder

G0 E-80 F500 ; back out of the extruder

G92 E0

M104 S[temperature];

;<<< 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-100 F2000

G92 E0

G0 E-100 F2000

G92 E0

G0 E-100 F2000

G92 E0

G0 E-100 F2000

G92 E0

G0 E-40 F2000

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

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 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 P1900 ; 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 P8000 ;

G0 Y-3;

G4 P400

{endif}

G0 Y3 F2000 ;

G4 P7800 ;

G0 E50 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 E100 F2000

G92 E0

G0 E100 F2000

G92 E0

G0 E100 F2000

G92 E0

G0 E100 F2000

G92 E0

G0 E15 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}

; Prime line if first tool

G0 X1 Y150 Z0.2 F1000 ; Purge line location

G0 Y0 E50 ; First Purge Line

G0 X3 ;

G0 Y150 E50 ; Second Purge Line

G4 P2000 ; Wait 2 Seconds

Like

bottom of page