Arrange the objects as shown in the photos below, using a layer 0.02

-cutterr.stl

 

-triger.stl

 

-knife.stl

There is no need to use support for knife stl. Pause for 11 layers and place the blades inside as shown in the photo below

 

Happy Hare Parameters

mmu_parameters.cfg -Toolhead loading and unloading toolhead_homing_max: 90 toolhead_extruder_to_nozzle: 62.1 toolhead_sensor_to_nozzle: 38.4 toolhead_entry_to_extruder: 5 toolhead_residual_filament: 16.6 toolhead_ooze_reduction: 0 toolhead_unload_safety_margin: 20 toolhead_post_load_tighten: 60 toolhead_move_error_tolerance: 90

The following settings are only suitable for k1/K1C

mmu_macro_vars.cfg -CUT_TIP variable_blade_pos: 40 variable_retract_length : 25 variable_cut_stepper_current : 100 variable_cutting_axis : "x" variable_pin_loc_xy : 33, 223.5 variable_pin_park_dist : 15 variable_pin_loc_compressed_xy : 19, 223.5 variable_rip_length : 2.5 variable_rip_speed : 20 variable_pushback_length : 5 variable_pushback_dwell_time : 0 variable_travel_speed : 150 variable_cut_fast_move_speed : 32 variable_cut_slow_move_speed : 8 variable_evacuate_speed : 150 variable_cut_dwell_time : 50 variable_cut_fast_move_fraction : 1.0 variable_extruder_move_speed : 25 variable_safe_margin_xy : 30, 30 variable_gantry_servo_enabled : False variable_gantry_servo_down_angle: 55 variable_gantry_servo_up_angle : 180

to be continued