Software & Firmware Configuration Changes

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ELEGOO LOVES TO COMPLETELY RESET THE PRINTER.CFG FILE ON RESTART OR WITH CERTAIN TOUCHSCREEN ACTIONS, WIPING OUT YOUR MODIFICATIONS IN THE PRINTER.CFG FILE.

TO AVOID THIS, WE RECOMMEND USING THE TOUCHSCREEN AS LITTLE AS POSSIBLE.

HOWEVER, IF/WHEN IT DOES HAPPEN, YOU'LL NEED TO MODIFY YOUR CONFIG AFTER IT BREAKS IT EVERY TIME ONCE YOU MODIFY THIS. SEE BELOW FOR WHAT WE FEEL IS THE BEST/EASIEST WAY TO RESTORE QUICKLY.

Beacon

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You'll need to root your firmware in order to use the beacon. Follow the instructions below

Enable root via the touchscreen, which will allow you to SSH into your machine to add beacon per the instructions.

Take a look at the machine's IP on the touchscreen - this will be what you use when you SSH into it.

How to root- use your touchscreen in the settings menu to enable root.

How to SSH - Use a program like Putty or MobaXterm(our personal favorites)

The default Username:Password combo should be elegoo:giga3dp. otherwise, mks:makerbase

TBD: There might be some elegoo specific instructions that i've seen out there, but I've been unable to find them to this point.

Install Beacon

Once SSH'd internally, use the instructions for install provided by beacon, linked below.

https://docs.beacon3d.com/quickstart/

The XY offset is 0 in X and -30.29 in Y

I recommend you place this section in the mcu_thr1.cfg config section.

THIS IS THE INFORMATION YOU NEED FOR SECTION 5 OF THE BEACON QUICKSTART DOCS

[beacon]
serial: /dev/serial/by-id/#your_beacon_id_here
x_offset: 0 # update for machine specific mount position
y_offset: -30.29
mesh_main_direction: x
mesh_runs: 2
contact_max_hotend_temperature: 310
autocal_tolerance: 0.08
mesh_overscan: 2

[resonance_tester]
accel_chip: beacon
probe_points: 400, 400, 20

You can adjust your mesh density however you like. I prefer sub 4x4mm mesh cells, so make the density 201x201

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WARNING - THE TOUCHSCREEN HAS A NASTY HABIT OF "HELPING" BY ADDING IN THE PREVIOUSLY CALIBRATED GCODE OFFSET secretly

MAKE THIS ZERO.

Editing printer.cfg

Alright - there's a few things that we'll need to directly edit.

Klipper reads its configuration "linearly" where it starts at the top, and reads through all of the settings, with the most recently read setting being the final one when it starts up.

This means that many of the things we need to change can simply be added to a file that we'll "include" at the end of the printer.cfg and then we'll just have to add " [include override_settings.cfg] to the end (before the "DO NOT EDIT BELOW THIS LINE section) in order to override.

I've included the override settings here - drop them into your configuration folder via Fluidd (web browser)

Things you'll want to comment out (put a # in front of the line)

In stepper_z:

Comment out endstop_position (since there's no longer using an endstop)

In Stepper_z1:

Comment out endstop pin & endstop position if populated.

Comment out / delete the entire [probe] section.

Toolhead:

Use the LGX Pro Settings for rotation distance (already done below)

These settings are off of our Giga here.

These settings are found in mcu_thr1.cfg and just replace all of the sections.

[extruder]
step_pin:mcu1:gpio5
dir_pin:mcu1:gpio4
enable_pin:!mcu1:gpio10
microsteps:16
rotation_distance: 7.805 
gear_ratio: 1:1
full_steps_per_rotation: 200    #200 for 1.8 degree, 400 for 0.9 degree
nozzle_diameter: 1.000
filament_diameter: 1.750
min_temp: 0
max_temp: 330
heater_pin:mcu1:gpio0
sensor_type:PT1000
sensor_pin: mcu1:gpio26
max_power: 1
pressure_advance: 0.032
pressure_advance_smooth_time: 0.02
max_extrude_cross_section:500
instantaneous_corner_velocity: 2.5
max_extrude_only_distance: 300
max_extrude_only_velocity:60
max_extrude_only_accel:2000
step_pulse_duration:0.000002 
min_extrude_temp:0
#This section is because the chube reports temperatures quickly and standard, non-MPC klipper will error it out.

[verify_heater extruder]
max_error: 1200
check_gain_time:10
hysteresis: 30
heating_gain: 0.001

[tmc2209 extruder]
uart_pin: mcu1:gpio6
interpolate: true
run_current: 0.55
hold_current: 0.2
sense_resistor: 0.110
stealthchop_threshold: 0

Suggested slicer changes:

add SET_GCODE_OFFSET Z=0 MOVE=1 to the end of the startup gcode -

THIS WILL LIKELY SOLVE YOUR WEIRD ISSUES - THE MOST RECENT GIGA I WORKED ON ADDED IN A RANDOM NUMBER FOR THE OFFSET THAT WAS NOT STORED IN MACROS NOR GCODE - IDK WHAT ELEGOO IS SMOKING BUT THIS BEHAVIOR IS INSANE. YOUR BEACON IS READING THE CORRECT VALUES, BUT ELEGOO IS INJECTING AN OFFSET BECAUSE THEY FEEL LIKE IT.

Make sure you calibrate your beacon!!

https://docs.beacon3d.com/quickstart/#6-calibrate-beacon

beacon_calibrate

allows you to tune your beacon using a peice of paper and the nozzle

beacon_auto_calibrate

when used when the nozzle is over the bed, will automatically touch the nozzle to the bed and calibrate exact offset for you!

Don't forget to save config (yellow floppy disk symbol top left of web page) before starting new prints!

PID CALIBRATE IT!

https://www.klipper3d.org/Config_checks.html?h=pid#calibrate-pid-settings