Prusa MK3S MMU2S purge bucket

thingiverse

It appears you've provided a G-code script for a 3D printer, specifically designed for a Prusa i3 MK3 with a SideBox. The script is used to perform a tool change on the printer, which involves retracting the filament, moving the head to a purge area, cleaning the filament before extraction, and then resetting the extrusion position. Here's how you can use this G-code: 1. **Before Tool Change**: Before running the G-code for tool changes, ensure that your 3D printer is in the state you want it to be during the change. This includes turning off fans (M106 S0), resetting retraction (G92 E0), retracting filament (G1 E-0.8 F2100), breaking filament before lifting (G1 Y100 F12000), and moving the head to a position where the tool can be changed. 2. **Tool Change**: The G-code then continues with relative positioning (G91) to ensure that movements are made in relation to the current position of the print head, not absolute positions. If the z-layer is less than 20 mm, it will perform a z-lift (G1 Z20) before continuing. 3. **Cleaning and Extraction**: After changing the tool, there's a sequence of G-code that cleans the filament by retracting at various speeds (G1 E-15.0000 F6000 to G1 E-3.5000 F360), adjusts the extruder temperature based on layer number (M104 S215 for first layers and M104 S210 for subsequent layers), and then performs a purge action (G1 E20.0000 F339, G1 E-20.0000 F226, M73 Q43 S3, M73 P43 R3). 4. **Purge After Tool Change**: Finally, the script indicates that it's changing tools (T{next_extruder}), turns off the fan (M107), resets the extrusion position (G92 E0), performs a filament support action (G1 E12 F400), accelerates for nozzle loading (G1 E60 F1000), purges the nozzle (G1 E50 F200), turns on the fan (M106 S255), cools the filament (G4 S2), resets the extrusion position again (G92 E0), retracts to avoid seepage (G1 E-1.8 F2100), and finally moves the bucket back home. 5. **End of Tool Purge Gcode**: The script ends by moving the head back home (G1 X240 F1000, G1 X200 F12000). To use this G-code, follow these steps: * Ensure your printer is configured for tool changes and has a SideBox installed. * Before running the G-code, prepare your printer as described in the script (turn off fans, retract filament, etc.). * Run the G-code to perform the tool change. * After the tool change, ensure that any modifications required are made according to the needs of your specific 3D printing setup. Please note that this script is designed for a specific printer model and configuration, so you may need to adjust it based on your printer's specifications. Additionally, always make sure you have the latest version of Marlin firmware installed on your printer to ensure compatibility with the G-code.