V-Core IDEX for RatOS 2.X

This is a unofficial and temporary RatOS V2.X IDEX Implementation. Consider it as beta or alpha. Macros are based on Mikkel Schmidt`s work and have been modified and extended by Helge Keck.

• RatOS macro compatibility
• V-Core IDEX Mainsail
• octopus v1.1 idex board configuration
• dual EBB42 toolboards with autoflashing
• native IDEX copy and mirror mode
• adaptive bed meshing for both toolheads
• ultra fast toolchanges, up to 0.3 seconds
• visual assisted toolhead offset calibration
• built in z-offset probe support

V-Core IDEX toolchange video

Hardware

• Left toolhead MUST be the X toolhead
• Right toolhead MUST be the Dual Carriage toolhead
• Name your extruders extruder left and extruder1 right
• Name your toolboards toolboard left and toolboardb right
• Name your toolboard adxl adxl345 toolboard left and adxl345 toolboardb right
• Name your part cooling fans heater_fan toolhead_cooling_fan left and heater_fan toolhead_cooling_fanb right
• make sure the nozzle from the z-probe toolhead is NOT higher then the other nozzle, ideally they have the same z-offset
• place the X and DUAL_CARRIAGE endstop stoppers as much outside as possible, to their max positions where they still work
• tune the X and DUAL_CARRIAGE endstop_position values to its correct positions
• your toolhead offsets should be less than 1mm

CHANGE! Inverted hybrid core-xy

You need to activate the new inverted setting in your dual_carriage configuration

[dual_carriage]
inverted: True

CHANGE! Toolhead order

The X and Dual Carriage positions have changed. Make sure your toolheads are on the correct side, you might need to swap the stepper connectors on your board. You maybe need to swap your x and dc endstop pins as well.

• Left toolhead MUST be the X toolhead
• Right toolhead MUST be the Dual Carriage toolhead
• you also need to swap these values from one stepper to the other. but keep your settings of course, dont use mine.

[stepper_x]
position_endstop: -74
position_min: -74
position_max: 376

[dual_carriage]
position_endstop: 376
position_max: 376
position_min: -74

CHANGE! Probing with both toolheads

You can now put the z-probe on any of the toolheads. Configure it with the RatOS Variable default_toolhead.

[gcode_macro RatOS]
variable_default_toolhead: 1 		# 0 = Left, 1 = Right

CHANGE! Run the install script again

Run the install script again if you have updated from a previous version.

bash ~/vcore-idex/install.sh

Install RatOS IDEX

• install RatOS for V-Core 3
• update klipper
• clone the idex repo

cd ~/
git clone https://github.com/HelgeKeck/vcore-idex.git
bash ~/vcore-idex/install.sh

• add the update manager entry to the moonraker.conf file in your config folder

[update_manager IDEX]
type: git_repo
primary_branch: main
path: ~/vcore-idex
origin: https://github.com/HelgeKeck/vcore-idex.git
managed_services:
	klipper

• reboot, not your laptop

IDEX modes

• by default the printer will be in single toolhead mode.
• to enable the Copy or Mirror mode for the next print, home your printer and then execute the IDEX_COPY or IDEX_MIRROR GCODE macro.
• execute IDEX_SINGLE to switch back to normal mode.

G-Code Macros:

• IDEX_SINGLE
• IDEX_COPY
• IDEX_MIRROR

Toolchange configuration

• ZHOP Z-Hop before and after the toolchange, in addition to the slicer z-hop
• COMBINED_ZHOP 0=OFF 1=ON. Combines z-hop/z-drop with retraction/deretraction moves
• M400 0=OFF 1=ON. Turn M400, for the z-hops and z-drops, on or off
• RETRACT Retraction before the toolchange
• EXTRUDE Extrusion after the toolchange
• FEEDRATE Feedrate for retract/extrude
• SPEED XY Travel Speed
• ACCEL XY Travel Accel
• SYNC_FANS 0=OFF 1=ON. Forces fan synchronisation in single mode. Helpful because the new ultra fast toolchanges can be MUCH faster than your part cooling fan spin up time. TIP! The Sanyo Denki 9GAX0412P3S001 4028 is almost as fast as the toolchanges

G-Code Macro:

• IDEX_CONFIG

Manual toolhead offset calibration

• for the X and Y calibration use the calibrate_separation macro to print the calibration lines, you are responsible for heating up your bed and extruders, dont forget to z-tilt and the bed mesh
• use the SET_SEPARATION macro to enter your toolhead offsets from the left toolhead

• X=1 to set the x-offset to 1
• X_ADJUST=1 to add 1 to the current x-offset
• X_ADJUST=-1 to subtract 1 from the current x-offset

G-Code Macros:

• SET_SEPARATION
• CALIBRATE_SEPARATION

V-Core IDEX Mainsail

• This fork contains some changes for IDEX printers.

• Visual assisted toolhead offset calibration read more

• Idex mode controls

• Idex extruder controls

CHANGE! Prusa Slicer / Super Slicer

• Start G-Code

START_PRINT EXTRUDER_TEMP={first_layer_temperature[0]} EXTRUDER_TEMP_1={first_layer_temperature[1]} EXTRUDER_OTHER_LAYER_TEMP={temperature[0]} EXTRUDER_OTHER_LAYER_TEMP_1={temperature[1]} BED_TEMP=[first_layer_bed_temperature] X0={first_layer_print_min[0]} Y0={first_layer_print_min[1]} X1={first_layer_print_max[0]} Y1={first_layer_print_max[1]} INITIAL_TOOL={initial_tool} COLOR={extruder_colour[0]} COLOR_1={extruder_colour[1]}

• End G-Code

END_PRINT

• Before layer change G-Code

_LAYER_CHANGE

• Tool change G-Code. Both lines are important

;tool change post processor tag
T[next_extruder] P1

• G-code substitutions

• Post processing script. Optional but recommended, tells klipper if all toolheads are in use.

ENTER_YOUR_PATH_TO_PYTHON\python3.exe "ENTER_YOUR_PATH_TO_THE_FILE\postprocessor.py"

• Super fast tool changes post processing script. EXPERIMENTAL, ultra fast and seamless IDEX toolchanges.

ENTER_YOUR_PATH_TO_PYTHON\python3.exe "ENTER_YOUR_PATH_TO_THE_FILE\ftc.py"