; Octoprint's Octolapse plugin required G-code
; Script based on an original created by tjjfvi (https://github.com/tjjfvi)
; An up-to-date version of the tjjfvi's original script can be found
; here:  https://csi.t6.fyi/
; Note - This script will only work in Cura V4.2 and above!
; --- Global Settings
; layer_height = {layer_height}
; smooth_spiralized_contours = {smooth_spiralized_contours}
; magic_mesh_surface_mode = {magic_mesh_surface_mode}
; machine_extruder_count = {machine_extruder_count}
; --- Single Extruder Settings
; speed_z_hop = {speed_z_hop}
; retraction_amount = {retraction_amount}
; retraction_hop = {retraction_hop}
; retraction_hop_enabled = {retraction_hop_enabled}
; retraction_enable = {retraction_enable}
; retraction_speed = {retraction_speed}
; retraction_retract_speed = {retraction_retract_speed}
; retraction_prime_speed = {retraction_prime_speed}
; speed_travel = {speed_travel}

; Ender 3 Custom Start G-code
G92 E0 ; Reset Extruder
G28 ; Home all axes
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line
G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
G1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line
G92 E0 ; Reset Extruder
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish

End G-code

G91 ;Relative positioning
G1 E-2 F2700 ;Retract a bit
G1 E-2 Z0.2 F2400 ;Retract and raise Z
G1 X5 Y5 F3000 ;Wipe out
G1 Z10 ;Raise Z more
G90 ;Absolute positioning

G1 X0 Y{machine_depth} ;Present print
M106 S0 ;Turn-off fan
M104 S0 ;Turn-off hotend
M140 S0 ;Turn-off bed

M84 X Y E ;Disable all steppers but Z

Print profiles

OrcaSlicer

⚠️ Important Security Alert ⚠️

Please be aware that "orcaslicer.net" or "orcaslicer.info" are NOT an official website for OrcaSlicer and may be potentially malicious. This site appears to use AI-generated content, lacking genuine context, and seems to exist solely to profit from advertisements. Worse, it may redirect download links to harmful sources. For your safety, avoid downloading OrcaSlicer from this site as the links may be compromised.

The only official platforms for OrcaSlicer are the GitHub project page.

Filament set up

PLA

Brand	Filament desc	Printing temp	Build Plate temp	Retractation Distance
Geeetech	Black	210°C	60°C	0.75mm
Geeetech	Silk Silver	210°C	60°C	0.75mm

PETG

Brand	Filament desc	Printing temp	Build Plate temp	Retractation Distance
Geeetech	--	--	--	--

Activate button and led support

Full tutorial

Raspberry Pi Power-Up and Shutdown with a Physical Button

TL;DR

Add button support

Edit /boot/config.txt file.
Add line dtoverlay=gpio-shutdown.

Final result:

[...]

[all]
# enable raspicam
start_x=1
gpu_mem=128

# Simple button on/off
dtoverlay=gpio-shutdown

Add LED support

Edit crontab

#> crontab -e

Add the line

@reboot raspi-gpio set 4 op dh

Final result:

# Edit this file to introduce tasks to be run by cron.
#
# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
#
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use '*' in these fields (for 'any').
#
# Notice that tasks will be started based on the cron's system
# daemon's notion of time and timezones.
#
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
#
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
#
# For more information see the manual pages of crontab(5) and cron(8)
#
# m h  dom mon dow   command
@reboot raspi-gpio set 4 op dh

Marlin custom firmware

⚠️ Notice ⚠️

I upgraded my Ender 3 printer with BIGTREETECH SKR MINI E3 V2 mainboard.

Firmware above is built for this mainboard!

Installed firmware

Currently used tag: 2.1.2.4
Details: Firmware sources and custom configuration (local repo)
Last compilation date: 2024-10-10 @ 09:53

Useful resources

Firmware configuration:

Theorical documentation:

Printer calibration:

After firware update, proceed with the different calibrations in the above order:

Z-Offset Wizard – A Complete Guide
On my custom firware, you can use the Z Probe Wizard feature to help performing the Z-Offset.
To do so, on Ender 3 screen menu, select : Motion > Z Probe Wizard.
Bed leveling
To have a printer bed properly leveled when you make changes to the printer, here the list of operations to be done in that exact order.
Both bed tramming and ABL require a BLTouch (or equivalent) hardware. See 3D printed custom parts & mods.:
1. Do a bed tramming (a.k.a manual bed leveling). On Ender 3 screen menu, select: Motion > Tramming Wizard.
2. Do an automatic bed leveling (ABL). In Octoprint, go to Bed Visualizer plugin UI and click Update Mesh Now button.
Marlin PID Auto-Tune - A Complete Guide
- ⚠️ First do the PID Auto-Tune for the bed. Else you may have false positive thermal runout.
Linear Advance (also know as Pressure Advance)
Linear advance tunning is filament specific.
For a given brand & type (PLA, PETG), you may use the same LA tunning.
But for optimal result you should tune PA for each filament roll.
- Explanation
- Pattern generation tool

3D printed custom parts & mods

Item	3D files	Final result
BTT SKR E3 mini mainboard	n/a
BLTouch for Automatic Bed Leveling (ABL)	n/a
Raspberry Pi 4 / Octoprint case (tutorial to enable power switch/LED)	Printable
Ender 3 PSU Support Bracket	Thingiverse
Filament runout sensor	n/a
Filament Guide	Thingiverse
Gantry led holder	n/a
Aukey LM1 WebCam holder	Thingiverse
PSU exhaust fan silencer	Printable
Tool holder	Local
SATSANA Ender 3 - BLTouch (Z-Offset: X-51 ; Y-12)	Printable