1. Applicable models: Tuozhu A1 and Chuangxiang KI/K1 MAX. Of course, if you can design the base, it is suitable for almost all models.   2. Features: Simple and convenient installation, can effectively remove the residual consumables from the nozzle.   3. K1/K1 MAX models: Print link: https://www.thingiverse.com/thing:6755415 Special recommendation: Use high temperature resistant consumables to print ABS, PA-CF, etc.)   4. Operation method: Modify the slicing software script to drive the machine to brush the cleaning brush before printing. Take K1 MAX as an example Modify the position of the starting gcode of the slicing software Change M140 S0 M104 S0 START_PRINT EXTRUDER_TEMP=[nozzle_temperature_initial_layer] BED_TEMP=[bed_temperature_initial_layer_single] to: M140 S0 M104 S0 START_PRINT EXTRUDER_TEMP=[nozzle_temperature_initial_layer] BED_TEMP=[bed_temperature_initial_layer_single] G1 Z10 Y305 X120 F3000 ; Go down G1 Z4 F3000 ; go down G1 X170 F9000 G1 X120 F9000 G1 X170 F9000 G1 X120 F9000 G1 280F9000