Servo driven nozzle wiper arm.

myminifactory

This is a G-Code script used to automate the cleaning of a 3D printer's hot end nozzle using a servo-controlled wiper arm. Here's a breakdown of the code: **Initial Setup** * The code starts with some basic setup commands: + `G21`: Sets units to millimeters. + `G90`: Uses absolute coordinates. + `M280 P1 S180`: Moves the wiper arm to its parked position at the front of the printer. **Home All Axes** * The code then homes all axes (X, Y, Z) using the `G28` command. This ensures that the nozzle is in a known position and ready for wiping. **Nozzle Wipe Height** * The code sets the nozzle to its wipe height by moving it up to 48mm above the print bed using the `G1 Z 48.00 F2500` command. **Purging Filament** * The code purges filament into the wiper tray by feeding 10mm of filament using the `G1 E 10 F300` command. * It then pauses for 4 seconds to allow any ooze to be wiped away using the `G4 P4000` command. **Retraction** * The code retracts 2mm of filament using the `G1 E -2 F300` command to try to stop any further ooze. **Wipe Nozzle** * The code moves the wiper arm to wipe the nozzle by setting its position to 25 (the maximum allowed movement) using the `M280 P1 S 25` command. * It then pauses for half a second using the `G4 P500` command. **Move Z Up and Park Wiper Arm** * The code moves the nozzle up above the wipe height using the `G1 Z 60.00 F2500` command, and then parks the wiper arm by moving it to its parked position at the front of the printer. **End Servo Nozzle Clean Test** * The code ends the servo nozzle clean test by sending a message to the printer's display using the `M117` command. **X Carriage Movements** * Finally, the code performs some X carriage movements to simulate 3D printing and ensure that the printer has not tripped or reset its RAMPS. This script can be modified to suit specific 3D printer models and settings. Note that you will need to change the nozzle height, wiper arm heights, and other parameters to match your specific setup.