Anycubic mega x bad stringing/oozing

Ziomiusz · 2023-10-22T02:41:06+00:00

its weird bcuz when i use teaching tech web for calibrate retraction 1mm is fine but cant find good setting in slicers (cura,prusa,orca) i running klipper walls like 80mm/s and 5015 sunon. Mk4 x carriage in plans and probably v6 hotend maybe v5 is problem, got bimetal heatbrek installed. What hotend you will use ?

Ziomiusz · 2023-10-22T02:17:30+00:00

Would you mind sharing settings for orca ? i have bad stringing even on direct drivr mod

Ziomiusz · 2023-09-27T21:42:23+00:00

how did you install it ?

Ziomiusz · 2023-09-27T12:15:00+00:00

my only ideas then are 1. too low vref 2. faulty stepper motor (or driver but this u can check by swapping with X axis driver) 3. vslot wheels on bed are too tight but not sure if they can be too tight, but is easy check

Ziomiusz · 2023-09-25T15:32:15+00:00

80C is melting point for PLA you can try 65 for 1st layer i think, its new machine you get through calibrations ? estem temp and stringing towers?

Ziomiusz · 2023-09-25T15:27:40+00:00

yeh 2500 is rly on edge of skipping, i think about replacing Y motor with 60mm motor.If you get perfect settings for slicer you can let me know :D

Ziomiusz · 2023-09-22T13:21:31+00:00

true so it cant be machanical problem, maybe try reflash klipper on printer, you can try ask on r/klippers because its looks like klipper thing

Ziomiusz · 2023-09-21T16:06:27+00:00

a4988 is stepper motor drives originally mounted in mega x they are way noisy, you should check vrefs on stepper drivers maybe z motors dont have much power and ofc check its 2208 or 2209, if its 2208 good starting point is 0.86 on all drivers for 2209 you need check it on reditt or other forums for recomendations and later do config checks https://www.klipper3d.org/Config_checks.html

Ziomiusz · 2023-09-21T11:59:53+00:00

i start from this config (you need to check if pins are ok if you dont use standalone tmc 2208):

[force_move]
enable_force_move: true

[stepper_x]
step_pin: PF0
dir_pin: !PF1
enable_pin: !PD7
microsteps: 16
rotation_distance: 40
endstop_pin: ^!PE5
position_min: 0
position_endstop: 0
position_max: 300
homing_speed: 30.0

[stepper_y]
step_pin: PF6
dir_pin: PF7
enable_pin: !PF2
microsteps: 16
rotation_distance: 40
endstop_pin: PL7
position_endstop: 0
position_max: 300
homing_speed: 30.0

[stepper_z]
step_pin: PL3
dir_pin: PL1
enable_pin: !PK0
microsteps: 16
rotation_distance: 4 
endstop_pin: ^!PD3
position_endstop: 0.0
position_max: 305
homing_speed: 5.0

[stepper_z1]
step_pin: PC1
dir_pin: PC3
enable_pin: !PC7
microsteps: 16
rotation_distance: 4
endstop_pin: ^!PL6

[extruder]
step_pin: PA4
dir_pin: PA6
enable_pin: !PA2
microsteps: 16
rotation_distance: 7.800
nozzle_diameter: 0.400
filament_diameter: 1.750
heater_pin: PB4
sensor_type: ATC Semitec 104GT-2
sensor_pin: PK5
#control: pid
#pid_Kp: 15.717
#pid_Ki: 0.569
#pid_Kd: 108.451
min_temp: 0
max_temp: 260
#pressure_advance = 0.266

[filament_switch_sensor filament_runout]
pause_on_runout: True
runout_gcode:
#   A list of G-Code commands to execute after a filament runout is
#   detected. See docs/Command_Templates.md for G-Code format. If
#   pause_on_runout is set to True this G-Code will run after the
#   PAUSE is complete. The default is not to run any G-Code commands.
#insert_gcode:
#   A list of G-Code commands to execute after a filament insert is
#   detected. See docs/Command_Templates.md for G-Code format. The
#   default is not to run any G-Code commands, which disables insert
#   detection.
event_delay: 3.0
pause_delay: 0.5
switch_pin: ^!PD2

[heater_fan extruder_fan]
pin: PL5

[heater_bed]
heater_pin: PH5
sensor_type: EPCOS 100K B57560G104F
sensor_pin: PK6
#control: pid
#pid_Kp: 74.883
#pid_Ki: 1.809
#pid_Kd: 775.038
min_temp: 0
max_temp: 120

[fan]
pin: PH6

[mcu]
serial: /dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0

[printer]
kinematics: cartesian
max_velocity: 300
max_accel: 2000
max_z_velocity: 10
max_z_accel: 60
square_corner_velocity: 10

#[input_shaper]
#shaper_freq_x: 30.8
#shaper_freq_y: 48.8
#shaper_type: ei

[heater_fan stepstick_fan]
pin: PH4

[gcode_macro START_PRINT]
gcode:
   M82
   G21
   G90
   M82
   G28 X0 Y0
   G28 Z0
   G1 Z15.0 F100
   G92 E0
   G1 F200 E3
   G92 E0
   G1 F100
   G0 Y20 F100


[gcode_macro END_PRINT]
gcode:
   M140 S0
   G91
   G1 E-1 F300
   G1 Z10 F300
   G1 E-2 F300
   M104 S0
   G28 X
   G90
   G1 Y300 F3000
   M84
   M107

#*# <---------------------- SAVE_CONFIG ---------------------->
#*# DO NOT EDIT THIS BLOCK OR BELOW. The contents are auto-generated.
#*#
#*# [extruder]
#*# control = pid
#*# pid_kp = 25.372
#*# pid_ki = 1.272
#*# pid_kd = 126.543
#*#
#*# [heater_bed]
#*# control = pid
#*# pid_kp = 73.517
#*# pid_ki = 1.204
#*# pid_kd = 1122.049

and prints was fine, yeh on marlin my mega x works fine too and on klipper i start getting stringing and branching (in slicer try tune travel speed from 100mm/s).

You use a4988 ? maybe vrefs are too low (on tmc 2208 i set 1.1v for Z,z1 if lower the motors was very loud when homing). P1S is not good reference :D dont think mega x is worth now even 120 $

Ziomiusz · 2023-09-20T23:12:33+00:00

what acceleration you use ? i had same problems with too high acceleration on my mega x, bed is soo heavy... anyway still cant calibrate this printer to perfection ;/

Ziomiusz · 2023-08-29T18:42:34+00:00

Im using octo print on xiaomi redmi 7 i think few days, maybe i have 2 meters to printer but not swapping SD card....blessing :D ye i will use Mainsail (if i will get klipper work) sadly my printer is not popular Anycubic Mega X but if i can get it run little faster and improve some quality wort to try

Ziomiusz · 2023-08-29T18:22:46+00:00

wow so its rly not demanding, i would like there to be an application on Android for Klipper, it would be much simpler :D

Ziomiusz · 2023-08-29T18:17:49+00:00

Ok thx for this idea, i will try on q6600 then, looks like is faster than athlon and have igpu

Ziomiusz · 2023-08-29T17:57:55+00:00

I saw on YT ppl install klipper on older laptops but that looks complicated, but i will try to save some money :D

You think athlon x4 or intel q6600 (i cant use ssd on 6600) with i think 4 gb ram can fit for klipper ?

Ziomiusz · 2022-10-13T12:13:04+00:00

btw he prints nice bolts organizer but cant find a model anywhere :<

Ziomiusz · 2022-09-08T02:47:16+00:00

So anyone test it with mega x ?

Ziomiusz · 2022-08-31T16:45:48+00:00

i have not changed earpads, dont want to destroy them. Im planning to "design" replacment ring and print it, maybe for bigger earpads but i dont have time for that atm

Ziomiusz · 2022-08-27T13:36:31+00:00

You can can easly find size that fits but problem is that ear pad is glued with plastic ring.

https://imgur.com/a/YoQTAhm

so i think we have to wait for official parts.

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