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3DClippy Code Help

I've decided to use the 3DClippy tool to avoid the tip shaping all together, but I need some help with the G-Code. I've used the G-Code generator for Mode 3 and I have the code, but in the code itself it says this line:

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

What cutter code do I use for this? My X axis is used for my switch at the limit at 235 and that was configured by the generator. I am using a regular Ender 3 Pro. Any help would be really appreciated.

5 answers0 replies

5 Comments

Joseph E

Mar 20

Did you get this figured out? If so, care to share your gcode?

Jorge Carranco

Mar 20

Replying to

I really wanted to get this to work, but I moved on and bought a bambu labs printer with AMS. I honestly tried and spent way too much time to get this figured out.

Bill

Dec 15, 2023

Well, it really depends on your particular machine. When you install the 3DClippy, you need to adapt it (and the code) to your particular installation. In general, you need to add the code at that point that moves the X axis over to one side to trigger the cut, and then back to the other side (like a G28 X to home it) to reset it.

Our sample code on the Ender 3 V2 can be used as a guide on how we implemented it for that particular machine. You can see it here: https://www.youtube.com/watch?v=BBzq4Lhg4Jc

The Ender 3 V2 profile is in the description of the video. But here is the relavant section. Notice the cool "hack" used to increase the motor torque and slow down the cutting action... and then also notice the homing to reset it afterwards. ; go to holding position to unload the stock extruder

G0 X220 Y227 F2000 ; <<----- EDIT THIS LINE TO SET THE INITIAL LOCATION OF THE BUTTON

G91 ; set motions to relative for the button presses

M92 X8; set x steps per mm to a small value (very high torque)

G92 X0 ; set to 0 so we have a lot of room to travel

; cut off the filament tip

G0 X310 F10000 ; quickly cut the filament strings off

G0 X-310 F10000 ; ok... go back to normal position

M92 X80; restore x steps per mm to normal value

G92 X220 ; restore original position

G0 E-2 F2000 ; pull filament off blade (this will pull off the tip if it didn't cut all the way through)

G0 Y-10 F2000; move away from clips

G28 X; home the x axis to reset the position

G0 X0;

G0 Y10 F2000

; push off tip into ptfe tube

G0 E5 F10000

G0 E-7 F10000

; retract it back out of the extruder

G0 E-100 F10000

G0 E-40 F10000 ; total backout of 250mm

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

Bill

Jorge Carranco

Dec 17, 2023

Replying to

I've physically installed 3DClippy on my ender 3 pro. In theory it should work as the blade will cut on the end of X axis and move back at the home of X axis when i move it by hand, but i'm struggling on the code part. I understand what you mean on the relevant section, but how and where to insert the code is making my head spin. This is the code i am using that was from your auto generated code. This works, but of course i'm struggling with the tip shipping that's why i decided to use 3DClippy. I am trying to use Mode 3, and my switch is on my Y axis now at 220, since i also couldn't wrap my head on how it would be possible to be on X axis as well since the blade cuts at the limit of X, and thus would be preventing filament to travel past the blade while the X axis is pressing the button to move the filament down. This is the G-Code i am trying to use and i'm just struggling on where to insert the relevant part of your 3DClippy code. Could you please help me and just edit my code where it 3DClippy needs to be?

; 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 Y217 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}

; back out the filament for cutting

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

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

; 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}

; retract it back out of the extruder

G92 E0

G0 E-0 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}

{if previous_extruder>-1}

G0 Y3 F2000 ;

G4 P10000 ;

G0 Y-3;

G4 P400

{endif}

G0 Y3 F2000 ;

G4 P10000 ;

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 E-25 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}

Daniel Mers

Apr 07

Replying to

Hi Bill

about this :

"Notice the cool "hack" used to increase the motor torque and slow down the cutting action... and then also notice the homing to reset it afterwards."

i would love to have that Section for Klipper ! is that possible ?

can you share please ?

many Thanks