Ender 3 Max Neo 4.2.2 Sprite SE extruder Klipper config

I have a Ender 3 Max Neo which is the large volume 300x300 print bed with dual Z axis and BL Touch.

My model has the 4.2.2 board with the GD STM32 chipset on it. I have replaced the stock extruder with the Creality Sprite SE near direct drive extruder.

I have everything working and have been testing print speeds of 150mm/s. I haven’t got input shaping setup yet so depending on the type of print I have found that up to 120mm/s can work pretty well.

Tall thin objects will suffer from ghosting at higher speeds but flatter wider models seem to print well at around 110mm/s.

I couldn’t find a printer CFG for the Max Neo and it’s different enough that there were a few changes to the Ender V2 config that I used as a base. The Sprite SE extruder wasn’t too hard to setup, just used the online rotation distance calculator after doing an extrude measure test.

Printer cfg config here :-

# This file contains pin mappings for the stock 2021 Creality Ender 3
# Neo Max with the 32-bit Creality 4.2.2 board. To use this config, during
# "make menuconfig" select the STM32F103 with a "28KiB bootloader" and
# serial (on USART1 PA10/PA9) communication.

# It should be noted that newer variations of this printer shipping in
# 2022 may have GD32F103 chips installed and not STM32F103. You may
# have to inspect the mainboard to ascertain which one you have. If it
# is the GD32F103 then please select Disable SWD at startup in the
# "make menuconfig" along with the same settings for STM32F103.

# This configuration is setup with a Creality Sprite SE Extruder direct
# drive unit and the factory BL Touch. The stock display is not supported.

# Flash this firmware by copying "out/klipper.bin" to a SD card and
# turning on the printer with the card inserted. The firmware
# filename must end in ".bin" and must not match the last filename
# that was flashed. Disconnect the screen before flashing.

# See docs/Config_Reference.md for a description of parameters.
[include mainsail.cfg]

step_pin: PC2
dir_pin: PB9
enable_pin: !PC3
microsteps: 16
rotation_distance: 40
endstop_pin: ^PA5
position_endstop: -20
position_min: -20
position_max: 310
homing_speed: 50

step_pin: PB8
dir_pin: PB7
enable_pin: !PC3
microsteps: 16
rotation_distance: 40
endstop_pin: ^PA6
position_endstop: 0
position_min: 0
position_max: 310
homing_speed: 50

step_pin: PB6
dir_pin: !PB5
enable_pin: !PC3
microsteps: 16
rotation_distance: 8
endstop_pin: probe:z_virtual_endstop
#position_endstop: 0.0
position_min: -3
position_max: 300

max_extrude_only_distance: 100.0
step_pin: PB4
dir_pin: PB3
enable_pin: !PC3
microsteps: 16
rotation_distance: 7.531
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PA1
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PC5
control: pid
# tuned for stock hardware with 200 degree Celsius target
pid_Kp: 21.527
pid_Ki: 1.063
pid_Kd: 108.982
min_temp: 0
max_temp: 250

heater_pin: PA2
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PC4
control: pid
# tuned for stock hardware with 50 degree Celsius target
pid_Kp: 54.027
pid_Ki: 0.770
pid_Kd: 948.182
min_temp: 0
max_temp: 130

pin: PA0

serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0
restart_method: command

kinematics: cartesian
max_velocity: 300
max_accel: 3000
max_z_velocity: 5
max_z_accel: 100

sensor_pin: ^PB1
control_pin: PB0
x_offset: 0.0
y_offset: 0.0
#z_offset: 0
speed: 20
samples: 1
sample_retract_dist: 8.0

home_xy_position: 150,150
speed: 150
z_hop: 10
z_hop_speed: 10

speed: 120
mesh_min: 70,50         # Need to handle head distance with cr-touch (bl_touch)
mesh_max: 310,290       # Max probe range
probe_count: 7,7
fade_start: 1
fade_end: 10
fade_target: 0
algorithm: bicubic

screw1:30, 40
screw2: 270, 40
screw3: 270, 280
screw4: 30, 280

screw1: 70, 50
screw1_name: front left screw
screw2: 310, 50
screw2_name: front right screw
screw3: 310, 290
screw3_name: rear right screw
screw4: 70, 290
screw4_name: rear left screw
horizontal_move_z: 10
speed: 200
screw_thread: CW-M4 # Use CW for Clockwise and CCW for Counter Clockwise

1 Like

Either you upload your config as a file or your format your code as preformatted text

In the actual way it is of use for any one.

  • Spaces are lost
  • Comment/Remark lines are just big and bold, but the hash sign (#) is gone
  • The Save Config section is just for your printer and may not fit to other printers.
1 Like

Appreciate the info, post updated.

1 Like

I am unfamiliar with most of what is in these posts. I don’t know much about configuration files and such. So, I’m kindly requesting an idiot proof answer to my question if one exists?

I have the ender 3 max neo. I believe it had the 4.2.2. I haven’t changed anything on it since i bought it except to try to set it up with the sonic pad. I kept getting an error about how it couldn’t connect due to klippy or something. I tried flashing the firmware. I don’t remember version.

The sonic pad still won’t work and now my original display won’t connect either. Help please.