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3D-printer.md

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3D Printer

Add Anti-backlash Nut - This is meant for the lead screw z axis

Power supply / Sizes

  • Input supply: 115-230 V 50-60 Hz (bivolt)
  • Output supply: 24 V 15 A (360 W)
  • Dimensions: 475x445x515mm
  • Weight: 8,3 Kg
  • Machine power: 360 W
  • SN: NEP 4 23710.A0197
  • 1.2A current version

Calibration

Flow Rate formula

( flowRatio_old * (100 + modifier) / 100)

Default 0.98

Max Volumetric Speed

start + (height-measured * step)

Fusion 360

Main material with a dark theme

  1. Press A to open the appearance tab
  2. Go to plastic > ABS White material
  3. Change the color to RGB - 160, 160, 160
  4. Change these other parameters: Roughness - 0.4 Reflection - 0.060
  5. Favorite this custom material
  6. Now overwrite the default material to the one inside the favorites library inside Preferences > Material > Apply a different appearance > Favorites library > Plastic > ABS (White)

Configs

Tab Name Value
General Reverse Zoom Direction TRUE
Material Material Theme Steel Satin
Graphics > Display High-resolution Canvas Graphic TRUE
Unit and Value Display Material Unit Display Metric mmNs
Default Units > Design Default Units For New Design mm
Default Units > Simulation Default Units Metric (SI)

Inner offset to use with bolts

Offset Result
-0.15 It fits well but with some wiggle
-0.10 Recommended
-0.05 Usable but it fits a little tight
default it fits tight and will damage the inner thread, should never be used

Materials settings

Material Brand Temperature Color Flow Ratio PA Max VA
Basic PLA 3D Fila 220 Branco Gesso 0,957 0,033 17
PLA EasyFill 3D Fila 205 Blue 0.995 0.028 -

Slicer settings

Orca

G-code start/end

START G-CODE
RESPOND TYPE=command MSG="ORCA START G-CODE"

; -- Turn the lights on
FLASHLIGHT_ON
MODLELIGHT_ON

G90 ; use absolute coordinates
RESPOND MSG="ABSOLUTE CORDINATES"
M83 ; extruder relative mode
RESPOND MSG="EXTRUDE RELATIVE MODE"

; -- Origin position
G1 X2 Y10 Z50 F3000
RESPOND MSG="ORIGIN POSITION"

M104 S120 ; set temporary nozzle temp to prevent oozing during homing and auto bed leveling
M140 S[bed_temperature_initial_layer] ; set final bed temp
G4 S10 ; allow partial nozzle warmup
RESPOND MSG="WARM-UP THINGS"

BED_MESH_CLEAR
BED_MESH_PROFILE LOAD=6
RESPOND TYPE=command MSG="BED_MESH LOADED"

M190 S[bed_temperature_initial_layer_single] ; wait for bed temp to stabilize

G28 ; home axis
RESPOND MSG="HOMING"

M104 S[nozzle_temperature_initial_layer] ; set final nozzle temp

; -- Origin position
G1 Z5 F300
G1 X2 Y10 F3000
G1 Z50 F300

RESPOND MSG="Origin Pos"

M109 S[nozzle_temperature_initial_layer] ; wait for nozzle temp to stabilize

; -- Prime filament
RESPOND TYPE=command MSG="Priming the Nozzle"
G1 Z0.28 F240
G92 E0
G1 Y140 E10 F1500 ; prime the nozzle
G1 X2.3 F5000
G92 E0
G1 Y10 E10 F1200 ; prime the nozzle
G92 E0

RESPOND TYPE=command MSG="Printing"
END G-CODE
{if max_layer_z < printable_height}G1 Z{z_offset+min(max_layer_z+2, printable_height)} F600 ; Move print head up{endif}
G1 X5 Y{print_bed_max[1]*0.8} F{travel_speed*60} ; present print
{if max_layer_z < printable_height-10}G1 Z{z_offset+min(max_layer_z+70, printable_height-10)} F600 ; Move print head further up{endif}
{if max_layer_z < printable_height*0.6}G1 Z{printable_height*0.6} F600 ; Move print head further up{endif}
M140 S0 ; turn off heatbed
M104 S0 ; turn off temperature
M107 ; turn off fan
M84 X Y E ; disable motors

Global Processes

Elegoo default speed
Parameter Value
First layer 60 mm/s
First layer infill 80 mm/s
Outer wall 130 mm/s
Inner wall 150 mm/s
Sparse infill 200 mm/s
Internal solid infill 150 mm/s
Gap infill 80 mm/s
Support 60 mm/s

Bridging with ABS my configs

Parameter Value
External Bridge speed 15 mm/s
Internal Bridge speed 15 mm/s
Bridge flow 0.78
Thick bridges Enabled
Filename format
{input_filename_base}-{print_time}-{layer_height}mm-{filament_type[0]}.gcode
// OR
{input_filename_base}-{print_time}-{total_weight}g-{layer_height}mm-{filament_type[0]}

Printer config (printer.cfg)

Screw Tilt Adjust

#####################################################################
# Screw tilt adjust / Bed screws
#####################################################################

[screws_tilt_adjust]
# Gives the palpation values on the bed and indicates the changes to be made           
screw1: 54.00, 10.50
screw1_name: front left screw
screw2: 223.50, 10.50
screw2_name: front right screw
screw3: 223.50, 180.50
screw3_name: rear right screw
screw4: 54.00, 180.50
screw4_name: rear left screw
horizontal_move_z: 10.0
speed: 150.0
screw_thread: CW-M4

[bed_screws]
# Place the nozzle at the screws to make manual adjustments
screw1: 32.5, 32.5
screw1_name: front left screw
screw2: 202.5, 32.5
screw2_name: front right screw
screw3: 202.5, 202.5
screw3_name: rear right screw
screw4: 32.5, 202.5
screw4_name: rear left screw
horizontal_move_z: 10.0
speed: 150.0

Others

SSH Login

:: Default user
user: mks
password: makerbase

:: User with admin priviledges
user: root
password: makerbase
  1. INTALL PSCP from Putty download files
  2. Place the file in your user folder %userprofile%
  3. Open CMD and get inside the user profile folder cd %userprofile%
  4. execute this command pscp -P 22 [email protected]:/home/mks/klipper_config/printer.cfg newfilename.cfg

Another great software is WINSCP.

Fixing moonraker paths

  1. cd ./moonraker
  2. git pull
  3. ./scripts/data-path-fix.sh

SSH Through Vscode

  1. Install Remote - SSH extension
  2. Ctrl + Shift + P > Add a new SSH HOST
  3. Type: ssh [email protected]

<username>@<host_or_printer_ip_address>

It's going to popup a screen asking for password and the connection will be made.

Klipper Flash MCU

  • In this case, there's no STM32F402 inside MCU, so use STM32F401 instead.
####################################################################################
# This product (Neptune 4/4pro/4plus/4max) adopts Klipper firmware 
# and does not support users to update the official klipper/fluidd
# /moonraker by themselves, otherwise the machine will not work properly.
# If you want to DIY and are an expert or interested in this field, 
# we recommend that you prepare your own tools for burning images so 
# that you can restore them if problems arise. Please contact after-sales 
# support team for tutorials on burning images. Thank you for your cooperation!
####################################################################################
# This file contains common pin mappings for ZNP-K1-V1.0 
# boards. To use this config, the firmware should be compiled for the
# STM32F402. When running "make menuconfig", enable "extra low-level
# configuration setup", select the 32KiB bootloader, and serial (on
# USART1 PA10/PA9) communication.

# The "make flash" command does not work on the ZN-K1-V1.0. Instead,
# after running "make", copy the generated "out/klipper.bin" file to a
# file named "elegoo_k1.bin" on an SD card and then restart the ZNP-K1-V1.0
# with that SD card.

(Fixing Error upload to print host)

If the gcode is too big and object_processing is enabled, the request can take more than 1 minute which is the default timeout for nginx. To change it, edit /etc/nginx/nginx.conf and add the following code inside http section but place it at the end:

http {
  ...
  ...
  ...

  proxy_send_timeout 500s;
  proxy_read_timeout 500s;
  fastcgi_send_timeout 500s;
  fastcgi_read_timeout 500s;
}

Change timezone

Login into armbian using SCP and Mks user

sudo armbian-config
  1. Go to personal > Timezone
  2. Select your timezone
  3. exit

Elegoo compress files to install

tar -cvf extra_update etc/ home/

Klipper Adaptive Meshing Purging

  1. You will need [exclude_object] defined in printer.cfg.

  2. You will also need to make sure the following is defined in moonraker.conf:

[file_manager]
enable_object_processing: True

Backup EMMC files

You can backup using an EMMC adapter connected to your computer and Win32 Disk Imager.

  1. It won't launch if Google drive is opened

This software has a launching issue when the computer has a mounted drive on the system like Google Drive. So in order to fix you can simply close GDrive application.

How to flash Updated Klipper MCU Firmware

  1. Go to ~/klipper folder
  2. type: make clean and then make menuconfig
  3. set the configs here
  4. then exit (Q)
  5. run the command make
  6. copy the file klipper.bin to the sdcard and rename it to elegoo_k1.bin
  7. turn off the printer, plug the sdcard in the slot and power on

configs makemenu

STM32
STM32F401
32KiB Bootloader
8 MHz Crystal
USART1 PA10/PA9
250000 Baud rate

Mcu 'rpi': Unable to connect/open port

sudo sysctl -w kernel.sched_rt_runtime_us=-1
echo "kernel.sched_rt_runtime_us = -1" | sudo tee /etc/sysctl.d/10-disable-rt-group-limit.conf
sudo service klipper restart

also, comment both parts in printer.cfg:

# [adxl345]
# cs_pin: rpi:None
# spi_bus: spidev0.2

# [resonance_tester]
# accel_chip: adxl345
# probe_points:
#    100, 100, 20

Fix heater bed PID led flickering

pwm_cycle_time: 0.0167 # to reduce led flicker