Marlin Configuration Guide

This will be specific to my configuration on my Ender 5 but should cover and explain all of the sections you will need to edit to configure Marlin for your printer. Since I often need to update the firmware along with mods and changes, I have tried to split up the guide into sections which make it easier to follow. If you find anything mising please get in contant and I will update the page with the information you need.

I'm not going to post any firmware binaries because I am largely against installing random files which you don't know exactly what they do (although on a 3D printer mainboard the worst you're going to do is brick a bunch of of electronics, but I highgly recommend downloading the Marlin firmware and configuring you own custom version of Marlin. These are the iterations I went through to go with all the different mods I did to the printer and Marlin features I wanted to enable.

Change notes

v3.1 - working release

fixed the origin location by using endstop max and changing the home direction for x and y, the origin is now in the front left
fixed bltouch x and y offsets to account for the new origin
increased max angle that z-axis auto align can account for up to 10%
removed stepper locations for z-axis auto align (clearly something was wrong) but defined the stepper layout
increased probing speed

v3.0 - almost working release

triple z leadscrew with true auto bed levelling
defined stepper leadscrew locations for better levelling - clearly there is something wrong because it massively overcompensates
reduced stepper current for all motion system motors to 650 from 800

v2.0 - working release

downloaded new bugfix branch 18/05/21
Marlin 2.0.8 yasssssssssss
recreation of v1.2 but with the new version of Marlin

v1.2 - working release

added z-offset wizard
added babystepping for z-offset

v1.1 - working release

everything works, default z-offset is 0 so this needs to be configured manually each time the eeprom is reset
bltouch offsets - marlin firmware has the front left as the origin; since mine is the back right, the offsets are +ve instead of -ve
reduce controller fan time after steppers have stopped to 10s (from 60s)
added 100ms of fan kickstart time at 100% for the 'main fan', aka the part-cooling fan that is fan0

v1.1_test - test only

changed bltouch offsets to positive (even though they should be negative but who knows, maybe it will work)
set FAN1 to be the hotend fan that should come on when temp above 40 degC - success!
set FAN2 to be the mainboard fan that should come on when the steppers are used, and go off after 60 seconds of no steppers - this will be used in a future mod to cool the electronics enclosure

v1.0 - non-working

added bltouch settings with (hopefully (ha, as if) correct) x and y offsets
bltouch using the z-min endstop pin, not the separate bltouch pin

v0.5 - working release

this is the working version before adding the bltouch, so if you want to go back to the purely mechanical z endstop use this binary
has the correct hotend pid settings for the stock creality hotend

v0.4 - test only

downloaded new bugfix branch 26/04/21
configured for Bigtreetech GTR
correct x, y, z and e-steps for the creality stock motors, extruder and upgraded 8mm OD, 2mm lead, 2mm pitch leadscrew

Download VSCode

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Install relevant extensions

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The Bugfix branch

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