RatOS Multi Extruder
A multi extruder feeder to direct extruder solution for RatOS
ROME is MUCH faster then any regular MMU, ERCF or similar setups. The whole filament unloading and loading process is multiple times faster, not only because ROME just has to park the filament behind the y-junction. In its native mode, ROME handles the loading and unloading process and skips the slicer controlled part of it. This process is highly optimized for a specific Hotend / Filament combination. No more configuration of cooling moves, skinnydip, ramming, ....
You can even set the acceleration for the wipe tower, in combination with the slicer max speed for the wipe tower feature, you can speed up the process even more.
With its Ooze Ex feature, it lets you use the most oozing hotends on the markets, it still produces a clean wipe tower
Every MM loading and unloading setting in the slicer will be deactivated and replaced with a simple unload macro.
Wipe tower, printed with 300mm/s @ 25000 mm²/s acceleration on a Rapido UHF with Prusament PETG.
Examples
cd ~/
git clone https://github.com/HelgeKeck/rome.git
bash ~/rome/install.sh
In the user overrides section in RatOS, include the base configuration file.
[include rome.cfg] Please make all changes and overrides in this file, there is no need to do that in your printer.cfg
[update_manager rome]
type: git_repo
primary_branch: main
path: ~/rome
origin: https://github.com/HelgeKeck/rome.git
is_system_service: False
managed_services: klipper
install_script: install.shPrinter Start G-code
ROME_START_PRINT EXTRUDER_TEMP=[first_layer_temperature] BED_TEMP=[first_layer_bed_temperature] CHAMBER_TEMP=[chamber_temperature] TOOL=[initial_tool] WIPE_TOWER={wipe_tower} WIPE_TOWER_X={wipe_tower_x} WIPE_TOWER_Y={wipe_tower_y} WIPE_TOWER_WIDTH={wipe_tower_width} WIPE_TOWER_ROTATION_ANGLE={wipe_tower_rotation_angle} COOLING_TUBE_RETRACTION={cooling_tube_retraction} COOLING_TUBE_LENGTH={cooling_tube_length} PARKING_POS_RETRACTION={parking_pos_retraction} EXTRA_LOADING_MOVE={extra_loading_move}
Printer End G-code
ROME_END_PRINT
Printer Tool change G-code
CHANGE_TOOL TOOL=[next_extruder]
Filament Start G-code
This is just an example, it shows how to configure pressure advance for the used extruders
SET_PRESSURE_ADVANCE ADVANCE=0.065 SMOOTH_TIME=0.04
SET_PRESSURE_ADVANCE ADVANCE=0.065 SMOOTH_TIME=0.04 EXTRUDER=rome_extruder_1
SET_PRESSURE_ADVANCE ADVANCE=0.065 SMOOTH_TIME=0.04 EXTRUDER=rome_extruder_2
ROME can operate in two different modes, Native and Classic.
The Classic Mode works exactly like the MMU or ERCF. You are responsible to configure the Slicer like you would for the MMU or ERCF.
The Native Mode handles the filament loading and unloading on the Wipe tower. Faster filament changes, less Slicer configuration needed and more control over the process.
Use relative E distances
Printer Settings->General
Activate additional extruders
Printer Settings->General
Dectivate all multi material parameters
Printer Settings->Single extruder MM setup
Dectivate advanced wiping volume
Printer Settings->Single extruder MM setup
Dectivate toolchange temperature
Filament Settings->Multimaterial
Dectivate skinnydip string reduction
Filament Settings->Multimaterial
Dectivate cooling moves and ramming
Filament Settings->Multimaterial
Enable wipe tower
Print Settings->multiple extruders